http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/ComponentMarkupIdTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/ComponentMarkupIdTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/ComponentMarkupIdTest.java
index cb16c69..d39f2cf 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/ComponentMarkupIdTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/ComponentMarkupIdTest.java
@@ -16,23 +16,24 @@
  */
 package org.apache.wicket.markup.html;
 
-import org.junit.Assert;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 import org.apache.wicket.Component;
 import org.apache.wicket.markup.html.basic.Label;
 import org.apache.wicket.markup.html.panel.EmptyPanel;
 import org.apache.wicket.markup.html.panel.Panel;
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Unit test to ensure that calling {@link Component#getMarkupId()} still 
works as advertised in
  * Wicket 1.4.
  */
-public class ComponentMarkupIdTest extends WicketTestCase
+class ComponentMarkupIdTest extends WicketTestCase
 {
        /** */
        @Test
-       public void idGeneratedWhenComponentNotAddedToPage()
+       void idGeneratedWhenComponentNotAddedToPage()
        {
                // In wicket 1.4 the following sequence would not cause an 
exception
                Label label = new Label("bla", "Hello, World!");
@@ -41,12 +42,12 @@ public class ComponentMarkupIdTest extends WicketTestCase
                String markupId = label.getMarkupId();
 
                // instead 1.4 would just generate the missing markup identifier
-               Assert.assertEquals("bla1", markupId);
+               assertEquals("bla1", markupId);
        }
 
        /** */
        @Test
-       public void idGeneratedWhenPanelNotAddedToPage()
+       void idGeneratedWhenPanelNotAddedToPage()
        {
                // In wicket 1.4 the following sequence would not cause an 
exception
                Panel panel = new EmptyPanel("bla");
@@ -56,7 +57,7 @@ public class ComponentMarkupIdTest extends WicketTestCase
                String markupId = panel.getMarkupId();
 
                // instead 1.4 would just generate the missing markup identifier
-               Assert.assertEquals("bla1", markupId);
+               assertEquals("bla1", markupId);
        }
 
        /**
@@ -64,13 +65,13 @@ public class ComponentMarkupIdTest extends WicketTestCase
         * markup file, when the component has been added to the page.
         */
        @Test
-       public void idFromMarkupRetrievedWhenPanelAddedToPage()
+       void idFromMarkupRetrievedWhenPanelAddedToPage()
        {
                ComponentMarkupIdTestPage page = new 
ComponentMarkupIdTestPage();
                tester.startPage(page);
                tester.assertRenderedPage(ComponentMarkupIdTestPage.class);
 
-               Assert.assertEquals("markupPanel", 
page.markupPanel.getMarkupId());
+               assertEquals("markupPanel", page.markupPanel.getMarkupId());
        }
 
        /**
@@ -78,41 +79,41 @@ public class ComponentMarkupIdTest extends WicketTestCase
         * markup file, when the component has been added to the page.
         */
        @Test
-       public void idFromMarkupRetrievedWhenLabelAddedToPage()
+       void idFromMarkupRetrievedWhenLabelAddedToPage()
        {
                ComponentMarkupIdTestPage page = new 
ComponentMarkupIdTestPage();
                tester.startPage(page);
                tester.assertRenderedPage(ComponentMarkupIdTestPage.class);
 
-               Assert.assertEquals("markupLabel", 
page.markupLabel.getMarkupId());
+               assertEquals("markupLabel", page.markupLabel.getMarkupId());
        }
 
        /**
         * Tests that a generated ID is kept, even if an identifier in the 
markup was set.
         */
        @Test
-       public void generatedIdOverridesIdFromMarkupWhenLabelAddedToPage()
+       void generatedIdOverridesIdFromMarkupWhenLabelAddedToPage()
        {
                ComponentMarkupIdTestPage page = new 
ComponentMarkupIdTestPage();
                tester.startPage(page);
                tester.assertRenderedPage(ComponentMarkupIdTestPage.class);
 
-               Assert.assertEquals("generatedLabel1", 
page.generatedLabelMarkupId);
-               Assert.assertEquals("generatedLabel1", 
page.generatedLabel.getMarkupId());
+               assertEquals("generatedLabel1", page.generatedLabelMarkupId);
+               assertEquals("generatedLabel1", 
page.generatedLabel.getMarkupId());
        }
 
        /**
         * Tests that a generated ID is kept, even if an identifier in the 
markup was set.
         */
        @Test
-       public void generatedIdOverridesIdFromMarkup()
+       void generatedIdOverridesIdFromMarkup()
        {
                ComponentMarkupIdTestPage page = new 
ComponentMarkupIdTestPage();
                tester.startPage(page);
                tester.assertRenderedPage(ComponentMarkupIdTestPage.class);
 
-               Assert.assertEquals("generatedPanel2", 
page.generatedPanelMarkupId);
-               Assert.assertEquals("generatedPanel2", 
page.generatedPanel.getMarkupId());
+               assertEquals("generatedPanel2", page.generatedPanelMarkupId);
+               assertEquals("generatedPanel2", 
page.generatedPanel.getMarkupId());
        }
 
        /**
@@ -120,13 +121,13 @@ public class ComponentMarkupIdTest extends WicketTestCase
         * kept, even if an identifier in the markup was set.
         */
        @Test
-       public void fixedIdFromJavaForLabelOverridesIdFromMarkup()
+       void fixedIdFromJavaForLabelOverridesIdFromMarkup()
        {
                ComponentMarkupIdTestPage page = new 
ComponentMarkupIdTestPage();
                tester.startPage(page);
                tester.assertRenderedPage(ComponentMarkupIdTestPage.class);
 
-               Assert.assertEquals("javaLabel", page.fixedLabel.getMarkupId());
+               assertEquals("javaLabel", page.fixedLabel.getMarkupId());
        }
 
        /**
@@ -134,12 +135,12 @@ public class ComponentMarkupIdTest extends WicketTestCase
         * kept, even if an identifier in the markup was set.
         */
        @Test
-       public void fixedIdFromJavaForPanelOverridesIdFromMarkup()
+       void fixedIdFromJavaForPanelOverridesIdFromMarkup()
        {
                ComponentMarkupIdTestPage page = new 
ComponentMarkupIdTestPage();
                tester.startPage(page);
                tester.assertRenderedPage(ComponentMarkupIdTestPage.class);
 
-               Assert.assertEquals("javaPanel", page.fixedPanel.getMarkupId());
+               assertEquals("javaPanel", page.fixedPanel.getMarkupId());
        }
 }

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/DecoratingHeaderResponseTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/DecoratingHeaderResponseTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/DecoratingHeaderResponseTest.java
index 30f8d5b..65eb1ca 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/DecoratingHeaderResponseTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/DecoratingHeaderResponseTest.java
@@ -16,11 +16,15 @@
  */
 package org.apache.wicket.markup.html;
 
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
+
 import java.io.IOException;
 import java.text.ParseException;
 
 import org.apache.wicket.MarkupContainer;
 import org.apache.wicket.markup.IMarkupResourceStreamProvider;
+import org.apache.wicket.markup.head.HeaderItem;
 import org.apache.wicket.markup.head.IHeaderResponse;
 import org.apache.wicket.markup.head.JavaScriptHeaderItem;
 import org.apache.wicket.markup.head.JavaScriptReferenceHeaderItem;
@@ -28,17 +32,16 @@ import org.apache.wicket.markup.head.ResourceAggregator;
 import org.apache.wicket.markup.parser.XmlPullParser;
 import org.apache.wicket.markup.parser.XmlTag;
 import org.apache.wicket.request.resource.PackageResourceReference;
-import org.apache.wicket.markup.head.HeaderItem;
 import org.apache.wicket.util.resource.IResourceStream;
 import org.apache.wicket.util.resource.ResourceStreamNotFoundException;
 import org.apache.wicket.util.resource.StringResourceStream;
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * @author Pedro Santos
  */
-public class DecoratingHeaderResponseTest extends WicketTestCase
+class DecoratingHeaderResponseTest extends WicketTestCase
 {
 
        /**
@@ -49,7 +52,7 @@ public class DecoratingHeaderResponseTest extends 
WicketTestCase
         * @throws ParseException
         */
        @Test
-       public void decoratedStringPrepend() throws IOException, 
ResourceStreamNotFoundException,
+       void decoratedStringPrepend() throws IOException, 
ResourceStreamNotFoundException,
                ParseException
        {
                tester.getApplication().setHeaderResponseDecorator(new 
IHeaderResponseDecorator()

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/HeaderContributorTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/HeaderContributorTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/HeaderContributorTest.java
index 867dc07..f6d8d54 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/HeaderContributorTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/HeaderContributorTest.java
@@ -16,6 +16,8 @@
  */
 package org.apache.wicket.markup.html;
 
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
 import java.util.concurrent.atomic.AtomicBoolean;
 
 import org.apache.wicket.Component;
@@ -30,28 +32,27 @@ import org.apache.wicket.markup.head.IHeaderResponse;
 import org.apache.wicket.util.resource.IResourceStream;
 import org.apache.wicket.util.resource.StringResourceStream;
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Assert;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Tests that {@link Component}, {@link Behavior} and {@link 
org.apache.wicket.ajax.attributes.IAjaxCallListener} that implements
  * {@link IHeaderContributor} actually contributes to the header
  */
-public class HeaderContributorTest extends WicketTestCase
+class HeaderContributorTest extends WicketTestCase
 {
 
        /**
         * @see <a 
href="https://issues.apache.org/jira/browse/WICKET-3059";>WICKET-3059</a>
         */
        @Test
-       public void testHeaderContribution()
+       void testHeaderContribution()
        {
                HeaderContributorTestPage page = new 
HeaderContributorTestPage();
                tester.startPage(page);
 
-               Assert.assertTrue("component", page.component.get());
-               Assert.assertTrue("behavior", page.behavior.get());
-               Assert.assertTrue("callDecorator", page.callDecorator.get());
+               assertTrue(page.component.get(), "component");
+               assertTrue(page.behavior.get(), "behavior");
+               assertTrue(page.callDecorator.get(), "callDecorator");
        }
 
        /**
@@ -70,7 +71,7 @@ public class HeaderContributorTest extends WicketTestCase
                /**
                 * Construct.
                 */
-               public HeaderContributorTestPage()
+               HeaderContributorTestPage()
                {
                        add(new AjaxEventBehavior("dummy")
                        {
@@ -130,7 +131,7 @@ public class HeaderContributorTest extends WicketTestCase
                 * 
                 * @param callDecorator
                 */
-               public HeaderContributingCallDecorator(AtomicBoolean 
callDecorator)
+               HeaderContributingCallDecorator(AtomicBoolean callDecorator)
                {
                        this.callDecorator = callDecorator;
                }

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/MarkupHeadFirstTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/MarkupHeadFirstTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/MarkupHeadFirstTest.java
index 7d54d4a..3abf5f8 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/MarkupHeadFirstTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/MarkupHeadFirstTest.java
@@ -25,12 +25,12 @@ import org.apache.wicket.markup.html.panel.Panel;
 import org.apache.wicket.util.resource.IResourceStream;
 import org.apache.wicket.util.resource.StringResourceStream;
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * <a href="https://issues.apache.org/jira/browse/WICKET-3761";>WICKET-3761</a>
  */
-public class MarkupHeadFirstTest extends WicketTestCase
+class MarkupHeadFirstTest extends WicketTestCase
 {
 
        /**
@@ -44,7 +44,7 @@ public class MarkupHeadFirstTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void renderMyPage() throws Exception
+    void renderMyPage() throws Exception
        {
                executeTest(MarkupHeadFirstPage.class, 
"MarkupHeadFirstPage.html");
        }
@@ -82,7 +82,7 @@ public class MarkupHeadFirstTest extends WicketTestCase
 
                private static final long serialVersionUID = 1L;
 
-               public MarkupHeadFirstPanel(String id)
+               MarkupHeadFirstPanel(String id)
                {
                        super(id);
                }

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/MarkupInheritanceResolverTestPage1.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/MarkupInheritanceResolverTestPage1.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/MarkupInheritanceResolverTestPage1.java
index fc15a00..fc98744 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/MarkupInheritanceResolverTestPage1.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/MarkupInheritanceResolverTestPage1.java
@@ -24,7 +24,7 @@ public class MarkupInheritanceResolverTestPage1 extends 
WebPage
        private static final long serialVersionUID = 1L;
 
        /** */
-       public MarkupInheritanceResolverTestPage1()
+    MarkupInheritanceResolverTestPage1()
        {
                add(new Label("test1", "test1"));
        }

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/MarkupInheritanceResolverTestPage2.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/MarkupInheritanceResolverTestPage2.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/MarkupInheritanceResolverTestPage2.java
index 636a14a..a44ace2 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/MarkupInheritanceResolverTestPage2.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/MarkupInheritanceResolverTestPage2.java
@@ -24,7 +24,7 @@ public class MarkupInheritanceResolverTestPage2 extends 
MarkupInheritanceResolve
        private static final long serialVersionUID = 1L;
 
        /** */
-       public MarkupInheritanceResolverTestPage2()
+    MarkupInheritanceResolverTestPage2()
        {
                add(new Label("test2", "test2"));
        }

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/PackageResourceGuardTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/PackageResourceGuardTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/PackageResourceGuardTest.java
index 42669a7..e146e03 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/PackageResourceGuardTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/PackageResourceGuardTest.java
@@ -16,21 +16,25 @@
  */
 package org.apache.wicket.markup.html;
 
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
 import java.io.File;
 
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * @author Juergen Donnerstag
  */
-public class PackageResourceGuardTest extends WicketTestCase
+class PackageResourceGuardTest extends WicketTestCase
 {
        /**
         * Test acceptance of root folder.
         */
        @Test
-       public void accept()
+       void accept()
        {
                PackageResourceGuard guard = new PackageResourceGuard();
 
@@ -48,7 +52,7 @@ public class PackageResourceGuardTest extends WicketTestCase
         * works on Windows and properly blocks on any other OS).
         */
        @Test
-       public void acceptAbsolutePath()
+       void acceptAbsolutePath()
        {
                PackageResourceGuard guard = new PackageResourceGuard();
                guard.setAllowAccessToRootResources(false);
@@ -82,7 +86,7 @@ public class PackageResourceGuardTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void markup() throws Exception
+       void markup() throws Exception
        {
                PackageResourceGuard guard = new PackageResourceGuard();
 

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/PackageResourceTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/PackageResourceTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/PackageResourceTest.java
index 63d6b6a..11bd855 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/PackageResourceTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/PackageResourceTest.java
@@ -16,6 +16,11 @@
  */
 package org.apache.wicket.markup.html;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
 import java.util.Locale;
 
 import org.apache.wicket.Application;
@@ -27,8 +32,8 @@ import 
org.apache.wicket.request.resource.PackageResourceReference;
 import org.apache.wicket.request.resource.ResourceReference;
 import org.apache.wicket.util.lang.Packages;
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 /**
  * Tests for package resources.
@@ -38,13 +43,13 @@ import org.junit.Test;
 public class PackageResourceTest extends WicketTestCase
 {
        /** mock application object */
-       public WebApplication application;
+       private WebApplication application;
 
        /**
         *
         */
-       @Before
-       public void before()
+       @BeforeEach
+       void before()
        {
                application = tester.getApplication();
        }
@@ -55,11 +60,12 @@ public class PackageResourceTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void bindAbsolutePackageResource() throws Exception
+       void bindAbsolutePackageResource() throws Exception
        {
                final SharedResources sharedResources = 
Application.get().getSharedResources();
-               assertNotNull("resource packaged1.txt should be available as a 
packaged resource",
-                       sharedResources.get(PackageResourceTest.class, 
"packaged1.txt", null, null, null, true));
+               assertNotNull(
+                       sharedResources.get(PackageResourceTest.class, 
"packaged1.txt", null, null, null, true),
+                       "resource packaged1.txt should be available as a 
packaged resource");
        }
 
        /**
@@ -68,7 +74,7 @@ public class PackageResourceTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void packageResourceGuard() throws Exception
+       void packageResourceGuard() throws Exception
        {
                PackageResourceGuard guard = new PackageResourceGuard();
                assertTrue(guard.acceptExtension("txt"));
@@ -91,24 +97,22 @@ public class PackageResourceTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void lenientPackageResourceMatching() throws Exception
+       void lenientPackageResourceMatching() throws Exception
        {
                ResourceReference invalidResource = new 
PackageResourceReference(PackageResourceTest.class,
                        "i_do_not_exist.txt", Locale.ENGLISH, null, null);
-               assertNotNull(
-                       "resource i_do_not_exist.txt SHOULD be available as a 
packaged resource even if it doesn't exist",
-                       invalidResource.getResource());
+               assertNotNull(invalidResource.getResource(), "resource 
i_do_not_exist.txt SHOULD be available as a packaged resource even if it 
doesn't exist");
 
-               assertTrue(PackageResource.exists(PackageResourceTest.class, 
"packaged1.txt", null, null,
-                       null));
+               assertTrue(
+                       PackageResource.exists(PackageResourceTest.class, 
"packaged1.txt", null, null, null));
                assertTrue(PackageResource.exists(PackageResourceTest.class, 
"packaged1.txt", Locale.CHINA,
                        null, null));
                assertTrue(PackageResource.exists(PackageResourceTest.class, 
"packaged1.txt", Locale.CHINA,
                        "foo", null));
-               assertTrue(PackageResource.exists(PackageResourceTest.class, 
"packaged1.txt", null, "foo",
+               assertTrue(
+                       PackageResource.exists(PackageResourceTest.class, 
"packaged1.txt", null, "foo", null));
+               assertTrue(PackageResource.exists(PackageResourceTest.class, 
"packaged1_en.txt", null, null,
                        null));
-               assertTrue(PackageResource.exists(PackageResourceTest.class, 
"packaged1_en.txt", null,
-                       null, null));
                assertTrue(PackageResource.exists(PackageResourceTest.class, 
"packaged1_en_US.txt", null,
                        null, null));
                assertTrue(PackageResource.exists(PackageResourceTest.class, 
"packaged1_en_US.txt", null,
@@ -139,7 +143,7 @@ public class PackageResourceTest extends WicketTestCase
         * https://issues.apache.org/jira/browse/WICKET-4119
         */
        @Test
-       public void contentType()
+       void contentType()
        {
                PackageResource textResource = new 
PackageResource(PackageResourceTest.class,
                        "packaged1.txt", null, null, null)
@@ -161,7 +165,7 @@ public class PackageResourceTest extends WicketTestCase
        }
 
        @Test
-       public void textFileWithEncoding()
+       void textFileWithEncoding()
        {
                final String encoding = "Klingon-8859-42";
                final PackageResource resource = new 
PackageResource(PackageResourceTest.class,
@@ -176,7 +180,7 @@ public class PackageResourceTest extends WicketTestCase
        }
 
        @Test
-       public void javascriptFileWithEncoding()
+       void javascriptFileWithEncoding()
        {
                final String encoding = "Klingon-8859-42";
                final JavaScriptPackageResource resource = new 
JavaScriptPackageResource(

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/SecurePackageResourceGuardTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/SecurePackageResourceGuardTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/SecurePackageResourceGuardTest.java
index 9507d0a..0df9800 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/SecurePackageResourceGuardTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/SecurePackageResourceGuardTest.java
@@ -16,21 +16,24 @@
  */
 package org.apache.wicket.markup.html;
 
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
 import org.apache.wicket.Application;
 import org.apache.wicket.util.lang.Packages;
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * @author Juergen Donnerstag
  */
-public class SecurePackageResourceGuardTest extends WicketTestCase
+class SecurePackageResourceGuardTest extends WicketTestCase
 {
        /**
         * 
         */
        @Test
-       public void accept()
+       void accept()
        {
                SecurePackageResourceGuard guard = new 
SecurePackageResourceGuard();
                guard.setAllowAccessToRootResources(false);
@@ -63,14 +66,14 @@ public class SecurePackageResourceGuardTest extends 
WicketTestCase
                {
                        hit = true;
                }
-               assertTrue("Expected an IllegalArgumentException", hit);
+               assertTrue(hit, "Expected an IllegalArgumentException");
        }
 
        /**
         * 
         */
        @Test
-       public void acceptAbsolutePath()
+       void acceptAbsolutePath()
        {
                SecurePackageResourceGuard guard = new 
SecurePackageResourceGuard();
                guard.addPattern("+*.gif");
@@ -84,7 +87,7 @@ public class SecurePackageResourceGuardTest extends 
WicketTestCase
         * 
         */
        @Test
-       public void fileOnly()
+       void fileOnly()
        {
                SecurePackageResourceGuard guard = new 
SecurePackageResourceGuard();
                guard.setAllowAccessToRootResources(true);
@@ -106,7 +109,7 @@ public class SecurePackageResourceGuardTest extends 
WicketTestCase
        }
 
        @Test
-       public void fileOnly_relative_allowed()
+       void fileOnly_relative_allowed()
        {
                // ".." is allowed as long as we have parent folder placeholder 
set in resource settings
                
tester.getApplication().getResourceSettings().setParentFolderPlaceholder("::");
@@ -116,7 +119,7 @@ public class SecurePackageResourceGuardTest extends 
WicketTestCase
        }
 
        @Test
-       public void fileOnly_relative_not_allowed()
+       void fileOnly_relative_not_allowed()
        {
                // ".." is allowed as long as we have parent folder placeholder 
set in resource settings
                
tester.getApplication().getResourceSettings().setParentFolderPlaceholder(null);
@@ -129,7 +132,7 @@ public class SecurePackageResourceGuardTest extends 
WicketTestCase
         * 
         */
        @Test
-       public void withDirectory()
+       void withDirectory()
        {
                SecurePackageResourceGuard guard = new 
SecurePackageResourceGuard();
                guard.getPattern().clear();
@@ -146,7 +149,7 @@ public class SecurePackageResourceGuardTest extends 
WicketTestCase
         * 
         */
        @Test
-       public void one()
+       void one()
        {
                SecurePackageResourceGuard guard = new 
SecurePackageResourceGuard();
                guard.getPattern().clear();
@@ -163,7 +166,7 @@ public class SecurePackageResourceGuardTest extends 
WicketTestCase
         * 
         */
        @Test
-       public void two()
+       void two()
        {
                SecurePackageResourceGuard guard = new 
SecurePackageResourceGuard();
                guard.getPattern().clear();
@@ -183,7 +186,7 @@ public class SecurePackageResourceGuardTest extends 
WicketTestCase
         * 
         */
        @Test
-       public void three()
+       void three()
        {
                SecurePackageResourceGuard guard = new 
SecurePackageResourceGuard();
                guard.getPattern().clear();
@@ -203,7 +206,7 @@ public class SecurePackageResourceGuardTest extends 
WicketTestCase
         * 
         */
        @Test
-       public void four()
+       void four()
        {
                SecurePackageResourceGuard guard = new 
SecurePackageResourceGuard();
                guard.getPattern().clear();
@@ -231,7 +234,7 @@ public class SecurePackageResourceGuardTest extends 
WicketTestCase
         * 
         */
        @Test
-       public void five()
+       void five()
        {
                SecurePackageResourceGuard guard = new 
SecurePackageResourceGuard();
                guard.getPattern().clear();
@@ -249,7 +252,7 @@ public class SecurePackageResourceGuardTest extends 
WicketTestCase
         * 
         */
        @Test
-       public void six()
+       void six()
        {
                SecurePackageResourceGuard guard = new 
SecurePackageResourceGuard();
                guard.setAllowAccessToRootResources(true);
@@ -267,7 +270,7 @@ public class SecurePackageResourceGuardTest extends 
WicketTestCase
         * 
         */
        @Test
-       public void seven()
+       void seven()
        {
                SecurePackageResourceGuard guard = new 
SecurePackageResourceGuard();
                guard.getPattern().clear();
@@ -284,7 +287,7 @@ public class SecurePackageResourceGuardTest extends 
WicketTestCase
         * 
         */
        @Test
-       public void eight()
+       void eight()
        {
                SecurePackageResourceGuard guard = new 
SecurePackageResourceGuard();
                guard.getPattern().clear();

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/TransparentWebMarkupContainerTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/TransparentWebMarkupContainerTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/TransparentWebMarkupContainerTest.java
index 39586e0..da853e4 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/TransparentWebMarkupContainerTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/TransparentWebMarkupContainerTest.java
@@ -16,7 +16,11 @@
  */
 package org.apache.wicket.markup.html;
 
+import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.Matchers.containsString;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
 
 import org.apache.wicket.Component;
 import org.apache.wicket.IPageManagerProvider;
@@ -40,7 +44,7 @@ import org.apache.wicket.util.resource.IResourceStream;
 import org.apache.wicket.util.resource.StringResourceStream;
 import org.apache.wicket.util.tester.WicketTestCase;
 import org.apache.wicket.util.tester.WicketTester;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * @author Pedro Santos
@@ -53,7 +57,7 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
         * @throws Exception
         */
        @Test
-       public void markupInheritanceResolver() throws Exception
+       void markupInheritanceResolver() throws Exception
        {
                executeTest(MarkupInheritanceResolverTestPage3.class,
                        "MarkupInheritanceResolverTestPage_expected.html");
@@ -63,7 +67,7 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
         * 
         */
        @Test
-       public void unableToFindComponents()
+       void unableToFindComponents()
        {
                try
                {
@@ -72,8 +76,7 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
                }
                catch (MarkupException e)
                {
-                       assertTrue(e.getMessage(),
-                               e.getMessage().contains("Unable to find 
component with id 'c1'"));
+                       assertTrue(e.getMessage().contains("Unable to find 
component with id 'c1'"), e.getMessage());
                }
        }
 
@@ -82,7 +85,7 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
         * WicketTagIdentifier is generation for internal components.
         */
        @Test
-       public void usingGeneratedWicketIdAreSafe1()
+       void usingGeneratedWicketIdAreSafe1()
        {
                tester.startPage(TestPage2.class);
                
assertTrue(tester.getLastResponseAsString().contains("test_message"));
@@ -93,7 +96,7 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
         * Same test in different scenario
         */
        @Test
-       public void usingGeneratedWicketIdAreSafe2()
+       void usingGeneratedWicketIdAreSafe2()
        {
                tester.startPage(TestPage3.class);
                String expected = tester.getApplication()
@@ -107,7 +110,7 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
         * Test case for <a 
href="https://issues.apache.org/jira/browse/WICKET-3719";>WICKET-3719</a>
         */
        @Test
-       public void ajaxUpdate()
+       void ajaxUpdate()
        {
                WicketTester wicketTester = new WicketTester()
                {
@@ -147,7 +150,7 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
         * that might need rewriting.
         */
        @Test
-       public void 
ajaxRequestForComponentInTransparentWebMarkupContainerShouldntCauseStackOverflow()
+       void 
ajaxRequestForComponentInTransparentWebMarkupContainerShouldntCauseStackOverflow()
        {
                tester.startPage(SingleNestedTransparentContainerPage.class);
 
@@ -166,7 +169,7 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
         * outer TWMC.
         */
        @Test
-       public void 
ajaxRequestForComponentInTransparentWebMarkupContainerShouldntCauseStackOverflow2()
+       void 
ajaxRequestForComponentInTransparentWebMarkupContainerShouldntCauseStackOverflow2()
        {
                tester.startPage(DoubleNestedTransparentContainerPage.class);
 
@@ -185,7 +188,7 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
         * container and trying to update a label that was added to the outer 
TWMC.
         */
        @Test
-       public void 
ajaxRequestForComponentInTransparentWebMarkupContainerShouldntCauseStackOverflow3()
+       void 
ajaxRequestForComponentInTransparentWebMarkupContainerShouldntCauseStackOverflow3()
        {
                
tester.startPage(DoubleNestedTransparentContainerWithSiblingTransparentContainerPage.class);
 
@@ -205,7 +208,7 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
         * the outer TWMC.
         */
        @Test
-       public void 
ajaxRequestForComponentInTransparentWebMarkupContainerShouldntCauseStackOverflow4()
+       void 
ajaxRequestForComponentInTransparentWebMarkupContainerShouldntCauseStackOverflow4()
        {
                
tester.startPage(TransparentContainerWithAutoTransparentContainerPage.class);
 
@@ -224,7 +227,7 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
         * label that was added to the outer TWMC.
         */
        @Test
-       public void 
ajaxRequestForComponentInTransparentWebMarkupContainerShouldntCauseStackOverflow5()
+       void 
ajaxRequestForComponentInTransparentWebMarkupContainerShouldntCauseStackOverflow5()
        {
                
tester.startPage(TransparentContainerWithManualTransparentContainerPage.class);
 
@@ -242,7 +245,7 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
         * Headers not rendered for components inside 
TransparentWebMarkupContainer on ajax update
         */
        @Test
-       public void updateAjaxUpdateOfTransparentContainer() throws Exception
+       void updateAjaxUpdateOfTransparentContainer() throws Exception
        {
                TestEmbeddedAjaxComponet page = new TestEmbeddedAjaxComponet();
                tester.startPage(page);
@@ -253,7 +256,7 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
        }
        
        @Test
-       public void updateAjaxUpdateOfContainerWithTransparentContainer() 
throws Exception
+       void updateAjaxUpdateOfContainerWithTransparentContainer() throws 
Exception
        {
                TestEmbeddedAjaxComponet page = new TestEmbeddedAjaxComponet();
                tester.startPage(page);
@@ -264,7 +267,7 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
        }
        
        @Test
-       public void nestedTransparentContainer() throws Exception
+       void nestedTransparentContainer() throws Exception
        {
                tester.startPage(TestEmbeddedTransparentMarkupContainer.class);
                
tester.assertRenderedPage(TestEmbeddedTransparentMarkupContainer.class);
@@ -280,7 +283,7 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
      * https://issues.apache.org/jira/browse/WICKET-6219
      */
     @Test
-    public void shouldAllowAFragmentIdConflictingToASibilingTagWicketId() 
throws Exception
+       void shouldAllowAFragmentIdConflictingToASibilingTagWicketId() throws 
Exception
     {
             tester.startPage(SubPageWithAFragment.class);
             assertThat(tester.getLastResponseAsString(), 
containsString("content"));
@@ -387,10 +390,10 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
        {
                private static final long serialVersionUID = 1L;
                
-               public int renderHeadCount = 0;
+               int renderHeadCount = 0;
 
                /** */
-               public TestEmbeddedAjaxComponet()
+               TestEmbeddedAjaxComponet()
                {
                        final WebMarkupContainer container = new 
WebMarkupContainer("container");
                        container.setOutputMarkupId(true);
@@ -456,10 +459,10 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
        {
                private static final long serialVersionUID = 1L;
                
-               public static final String LABEL_MARKUP = "<span 
wicket:id=\"label\"></span>";
+               static final String LABEL_MARKUP = "<span 
wicket:id=\"label\"></span>";
                
                /** */
-               public TestEmbeddedTransparentMarkupContainer()
+        public TestEmbeddedTransparentMarkupContainer()
                {
                        add(new TransparentWebMarkupContainer("outer"));
                        add(new TransparentWebMarkupContainer("inner"));
@@ -486,7 +489,7 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
        {
                private static final long serialVersionUID = 1L;
 
-               public PageWithAChildInsideATransparentContainer(PageParameters 
parameters)
+        public PageWithAChildInsideATransparentContainer(PageParameters 
parameters)
                {
                        super(parameters);
                        add(new TransparentWebMarkupContainer("wrapper"));
@@ -508,7 +511,7 @@ public class TransparentWebMarkupContainerTest extends 
WicketTestCase
        {
                private static final long serialVersionUID = 1L;
 
-               public SubPageWithAFragment(PageParameters parameters)
+        public SubPageWithAFragment(PageParameters parameters)
                {
                        super(parameters);
                        Fragment fragment = new Fragment("header", "header", 
this);

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/WebPageTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/WebPageTest.java 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/WebPageTest.java
index 1d4e256..4f280f6 100644
--- a/wicket-core/src/test/java/org/apache/wicket/markup/html/WebPageTest.java
+++ b/wicket-core/src/test/java/org/apache/wicket/markup/html/WebPageTest.java
@@ -16,7 +16,8 @@
  */
 package org.apache.wicket.markup.html;
 
-import static org.hamcrest.CoreMatchers.instanceOf;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import org.apache.wicket.MarkupContainer;
 import org.apache.wicket.ajax.AjaxRequestTarget;
@@ -26,12 +27,12 @@ import org.apache.wicket.page.IManageablePage;
 import org.apache.wicket.util.resource.IResourceStream;
 import org.apache.wicket.util.resource.StringResourceStream;
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * @author Pedro Santos
  */
-public class WebPageTest extends WicketTestCase
+class WebPageTest extends WicketTestCase
 {
 
        /**
@@ -40,7 +41,7 @@ public class WebPageTest extends WicketTestCase
         * @see <a 
href="https://issues.apache.org/jira/browse/WICKET-3892";>WICKET-3892</a>
         */
        @Test
-       public void increaseNewlyCreatedPageId()
+       void increaseNewlyCreatedPageId()
        {
                tester.startPage(MainPage.class);
                int mainPageId = tester.getLastRenderedPage().getPageId();
@@ -54,8 +55,8 @@ public class WebPageTest extends WicketTestCase
                IManageablePage mainPage = 
tester.getSession().getPageManager().getPage(mainPageId);
                IManageablePage targetPage = 
tester.getSession().getPageManager().getPage(targetPageId);
 
-               assertThat(mainPage, instanceOf(MainPage.class));
-               assertThat(targetPage, instanceOf(TargetPage.class));
+               assertThat(mainPage).isInstanceOf(MainPage.class);
+               assertThat(targetPage).isInstanceOf(TargetPage.class);
        }
 
        /** */
@@ -86,7 +87,7 @@ public class WebPageTest extends WicketTestCase
        }
 
        /** */
-       public static class TargetPage extends WebPage implements 
IMarkupResourceStreamProvider
+       static class TargetPage extends WebPage implements 
IMarkupResourceStreamProvider
        {
                @Override
                public IResourceStream getMarkupResourceStream(MarkupContainer 
container,

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/XmlDeclResponseTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/XmlDeclResponseTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/XmlDeclResponseTest.java
index dba8b4b..95442fe 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/XmlDeclResponseTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/XmlDeclResponseTest.java
@@ -16,24 +16,26 @@
  */
 package org.apache.wicket.markup.html;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 import org.apache.wicket.Page;
 import org.apache.wicket.markup.IMarkupFragment;
 import org.apache.wicket.markup.Markup;
 import org.apache.wicket.markup.MarkupType;
 import org.apache.wicket.protocol.http.WebApplication;
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Test xml decl in WebResponse
  */
-public class XmlDeclResponseTest extends WicketTestCase
+class XmlDeclResponseTest extends WicketTestCase
 {
        private static final String markupWith = "<?xml version='1.0' 
encoding='UTF-8' ?><html><body></body></html>";
        private static final String markupWithout = 
"<html><body></body></html>";
 
        private static final String acceptString = 
"text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5";
-       public static final String ACCEPT = "Accept";
+       private static final String ACCEPT = "Accept";
 
        private int insertXmlDecl = 0;
 
@@ -64,7 +66,7 @@ public class XmlDeclResponseTest extends WicketTestCase
 
        /** */
        @Test
-       public void insertAlways()
+       void insertAlways()
        {
                insertXmlDecl = 1;
 
@@ -99,7 +101,7 @@ public class XmlDeclResponseTest extends WicketTestCase
 
        /** */
        @Test
-       public void insertNever()
+       void insertNever()
        {
                insertXmlDecl = -1;
 
@@ -134,7 +136,7 @@ public class XmlDeclResponseTest extends WicketTestCase
 
        /** */
        @Test
-       public void insertWithRules()
+       void insertWithRules()
        {
                insertXmlDecl = 0;
 
@@ -179,7 +181,7 @@ public class XmlDeclResponseTest extends WicketTestCase
                /**
                 * @param mime
                 */
-               public SimplePage(String mime)
+               SimplePage(String mime)
                {
                        this.mime = mime;
                }

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/autocomponent/AutocomponetsGenerationTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/autocomponent/AutocomponetsGenerationTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/autocomponent/AutocomponetsGenerationTest.java
index d5dbff6..b26c414 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/autocomponent/AutocomponetsGenerationTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/autocomponent/AutocomponetsGenerationTest.java
@@ -16,13 +16,15 @@
  */
 package org.apache.wicket.markup.html.autocomponent;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 import org.apache.wicket.Page;
 import org.apache.wicket.core.util.string.ComponentRenderer;
 import org.apache.wicket.markup.IMarkupCache;
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
-public class AutocomponetsGenerationTest extends WicketTestCase
+class AutocomponetsGenerationTest extends WicketTestCase
 {
 
        /*
@@ -30,7 +32,7 @@ public class AutocomponetsGenerationTest extends 
WicketTestCase
         * and for https://issues.apache.org/jira/browse/WICKET-5908
         */
        @Test
-       public void autocomponetsNumberDoesntChange()
+       void autocomponetsNumberDoesntChange()
        {
                AutoComponentsPage autoComponentsPage = new 
AutoComponentsPage();
                tester.startPage(autoComponentsPage);
@@ -51,7 +53,7 @@ public class AutocomponetsGenerationTest extends 
WicketTestCase
         * Test for https://issues.apache.org/jira/browse/WICKET-6116
         */
        @Test
-       public void borderResolvesAutocomponents() throws Exception
+       void borderResolvesAutocomponents() throws Exception
        {
                AutoComponentsBorder border = new AutoComponentsBorder("id");
                
@@ -71,7 +73,7 @@ public class AutocomponetsGenerationTest extends 
WicketTestCase
         * Test for https://issues.apache.org/jira/browse/WICKET-6256
         */
        @Test
-       public void autoComponentsIdsGeneration() throws Exception 
+       void autoComponentsIdsGeneration() throws Exception
        {
                Page page = new UniqueIdTest();
                

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/autocomponent/UniqueIdTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/autocomponent/UniqueIdTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/autocomponent/UniqueIdTest.java
index 43782e9..d30d2d5 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/autocomponent/UniqueIdTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/autocomponent/UniqueIdTest.java
@@ -24,7 +24,7 @@ import org.apache.wicket.markup.html.panel.Panel;
 import org.apache.wicket.util.resource.IResourceStream;
 import org.apache.wicket.util.resource.StringResourceStream;
 
-public class UniqueIdTest extends WebPage {
+class UniqueIdTest extends WebPage {
        
        @Override
        protected void onInitialize() {
@@ -44,7 +44,7 @@ public class UniqueIdTest extends WebPage {
                 */
                private static final long serialVersionUID = 
-437057755276096255L;
 
-               public CacheKeyNullPanel(String id) {
+               CacheKeyNullPanel(String id) {
                        super(id);
                }
 

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/AutoLinkInPanelsTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/AutoLinkInPanelsTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/AutoLinkInPanelsTest.java
index 23865c8..0291b43 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/AutoLinkInPanelsTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/AutoLinkInPanelsTest.java
@@ -22,15 +22,15 @@ import org.apache.wicket.markup.html.autolink.sub.LogoPanel;
 import org.apache.wicket.protocol.http.WebApplication;
 import org.apache.wicket.util.tester.WicketTestCase;
 import org.apache.wicket.util.tester.WicketTester;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 /**
  * Test for WICKET-4681
  * 
  * @author Carl-Eric Menzel
  */
-public class AutoLinkInPanelsTest extends WicketTestCase
+class AutoLinkInPanelsTest extends WicketTestCase
 {
        public static class TestPage extends WebPage
        {
@@ -40,8 +40,8 @@ public class AutoLinkInPanelsTest extends WicketTestCase
                }
        }
 
-       @Before
-       public void setUp()
+       @BeforeEach
+    void setUp()
        {
                tester = new WicketTester(new WebApplication()
                {
@@ -62,7 +62,7 @@ public class AutoLinkInPanelsTest extends WicketTestCase
        }
 
        @Test
-       public void imgTagWorksInPanelWithExtraContainer() throws Exception
+    void imgTagWorksInPanelWithExtraContainer() throws Exception
        {
                tester.startPage(TestPage.class);
 //             tester.dumpPage();
@@ -70,7 +70,7 @@ public class AutoLinkInPanelsTest extends WicketTestCase
        }
 
        @Test
-       public void imgTagWorksInPanelWithoutExtraContainer() throws Exception
+    void imgTagWorksInPanelWithoutExtraContainer() throws Exception
        {
                tester.startPage(TestPage.class);
                tester.assertContains("<img 
src=\"\\./wicket/resource/org.apache.wicket.markup.html.autolink.sub.LogoPanel/logo2-ver-\\d+.png\"/>");

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/AutolinkTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/AutolinkTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/AutolinkTest.java
index 1aa6139..567e4c2 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/AutolinkTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/AutolinkTest.java
@@ -18,20 +18,20 @@ package org.apache.wicket.markup.html.autolink;
 
 import org.apache.wicket.markup.html.autolink.sub.PageB;
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 
 /**
  * 
  */
-public class AutolinkTest extends WicketTestCase
+class AutolinkTest extends WicketTestCase
 {
        /**
         * 
         * @throws Exception
         */
        @Test
-       public void test_1() throws Exception
+    void test_1() throws Exception
        {
                executeTest(MyPage.class, "MyPageExpectedResult.html");
        }
@@ -41,7 +41,7 @@ public class AutolinkTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void test_2() throws Exception
+    void test_2() throws Exception
        {
                executeTest(PageA.class, "PageAExpectedResult.html");
        }
@@ -51,7 +51,7 @@ public class AutolinkTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void test_3() throws Exception
+    void test_3() throws Exception
        {
                executeTest(PageB.class, "PageBExpectedResult.html");
        }
@@ -61,7 +61,7 @@ public class AutolinkTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void test_4() throws Exception
+    void test_4() throws Exception
        {
                executeTest(Index.class, "Index_ExpectedResult.html");
        }

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/BasePage.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/BasePage.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/BasePage.java
index ad2b7ee..405bb89 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/BasePage.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/BasePage.java
@@ -29,7 +29,7 @@ public class BasePage extends WebPage
         * Creates a new instance of BasePanel
         * 
         */
-       public BasePage()
+    BasePage()
        {
        }
 }

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/QuickStartPage.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/QuickStartPage.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/QuickStartPage.java
index af20c04..09ac525 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/QuickStartPage.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/QuickStartPage.java
@@ -32,7 +32,7 @@ public abstract class QuickStartPage extends WebPage
        /**
         * Construct.
         */
-       public QuickStartPage()
+    QuickStartPage()
        {
                add(new LinkPanel("linkPanel"));
        }

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/sub/BasePage.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/sub/BasePage.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/sub/BasePage.java
index 0ff5403..4a8ec3e 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/sub/BasePage.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/autolink/sub/BasePage.java
@@ -29,7 +29,7 @@ public class BasePage extends WebPage
         * Creates a new instance of BasePanel
         * 
         */
-       public BasePage()
+    BasePage()
        {
        }
 }

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/EnclosureContainerTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/EnclosureContainerTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/EnclosureContainerTest.java
index c27121d..19b00fd 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/EnclosureContainerTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/EnclosureContainerTest.java
@@ -16,19 +16,21 @@
  */
 package org.apache.wicket.markup.html.basic;
 
+import static org.junit.jupiter.api.Assertions.assertFalse;
+
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Test for {@link EnclosureContainer}.
  * 
  * @author svenmeier
  */
-public class EnclosureContainerTest extends WicketTestCase
+class EnclosureContainerTest extends WicketTestCase
 {
 
        @Test
-       public void test() {
+       void test() {
                EnclosureContainerPage page = new EnclosureContainerPage();
                        
                tester.startPage(page);

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/HomePageRedirectTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/HomePageRedirectTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/HomePageRedirectTest.java
index 6c1c550..b5328dc 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/HomePageRedirectTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/HomePageRedirectTest.java
@@ -16,20 +16,22 @@
  */
 package org.apache.wicket.markup.html.basic;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 import org.apache.wicket.util.tester.DiffUtil;
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * @author jcompagner
  */
-public class HomePageRedirectTest extends WicketTestCase
+class HomePageRedirectTest extends WicketTestCase
 {
        /**
         * @throws Exception
         */
        @Test
-       public void testRenderHomePagePageRedirect() throws Exception
+       void testRenderHomePagePageRedirect() throws Exception
        {
                tester.startPage(HomePagePageRedirect.class);
 
@@ -44,7 +46,7 @@ public class HomePageRedirectTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void testRenderHomePageClassRedirect() throws Exception
+       void testRenderHomePageClassRedirect() throws Exception
        {
                tester.startPage(HomePageClassRedirect.class);
 

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/LabelTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/LabelTest.java 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/LabelTest.java
index 000136b..831ce64 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/LabelTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/LabelTest.java
@@ -17,14 +17,14 @@
 package org.apache.wicket.markup.html.basic;
 
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Test for Label components
  * 
  * @author Eelco Hillenius
  */
-public class LabelTest extends WicketTestCase
+class LabelTest extends WicketTestCase
 {
        /**
         * Test escaping markup.
@@ -32,7 +32,7 @@ public class LabelTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void labelWithEscapeMarkup() throws Exception
+    void labelWithEscapeMarkup() throws Exception
        {
                executeTest(LabelWithEscapeMarkupPage.class, 
"LabelWithEscapeMarkupPageExpectedResult.html");
        }
@@ -43,7 +43,7 @@ public class LabelTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void labelWithoutEscapeMarkup() throws Exception
+    void labelWithoutEscapeMarkup() throws Exception
        {
                executeTest(LabelWithoutEscapeMarkupPage.class,
                        "LabelWithoutEscapeMarkupPageExpectedResult.html");

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/SimplePageTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/SimplePageTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/SimplePageTest.java
index 8e8de92..bb591da 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/SimplePageTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/SimplePageTest.java
@@ -16,6 +16,11 @@
  */
 package org.apache.wicket.markup.html.basic;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
 import org.apache.wicket.markup.MarkupException;
 import org.apache.wicket.markup.MarkupNotFoundException;
 import org.apache.wicket.markup.html.WebMarkupContainer;
@@ -23,8 +28,7 @@ import org.apache.wicket.markup.html.border.Border;
 import org.apache.wicket.markup.html.panel.Panel;
 import org.apache.wicket.util.tester.WicketTestCase;
 import org.apache.wicket.util.value.ValueMap;
-import org.junit.Test;
-
+import org.junit.jupiter.api.Test;
 
 /**
  * Simple application that demonstrates the mock http application code (and 
checks that it is
@@ -32,13 +36,13 @@ import org.junit.Test;
  * 
  * @author Chris Turner
  */
-public class SimplePageTest extends WicketTestCase
+class SimplePageTest extends WicketTestCase
 {
        /**
         * @throws Exception
         */
        @Test
-       public void renderHomePage() throws Exception
+       void renderHomePage() throws Exception
        {
                executeTest(SimplePage.class, "SimplePageExpectedResult.html");
        }
@@ -47,7 +51,7 @@ public class SimplePageTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void renderHomePage_2() throws Exception
+       void renderHomePage_2() throws Exception
        {
                executeTest(SimplePage.class, "SimplePageExpectedResult.html");
                String document = tester.getLastResponseAsString();
@@ -58,7 +62,8 @@ public class SimplePageTest extends WicketTestCase
 
                Panel panel = 
(Panel)tester.getLastRenderedPage().get("myPanel");
                assertNotNull(panel);
-               assertTrue(document.contains("<wicket:panel>Inside the 
panel<span wicket:id=\"label\">mein Label</span></wicket:panel>"));
+               assertTrue(document.contains(
+                       "<wicket:panel>Inside the panel<span 
wicket:id=\"label\">mein Label</span></wicket:panel>"));
 
                label = 
(Label)tester.getLastRenderedPage().get("myPanel:label");
                assertNotNull(label);
@@ -68,18 +73,21 @@ public class SimplePageTest extends WicketTestCase
                Border border = 
(Border)tester.getLastRenderedPage().get("myBorder");
                assertNotNull(border);
                assertFalse("".equals(document));
-               assertTrue(document.contains("<wicket:border>before body - 
<wicket:body>border</wicket:body> - after body</wicket:border>"));
+               assertTrue(document.contains(
+                       "<wicket:border>before body - 
<wicket:body>border</wicket:body> - after body</wicket:border>"));
 
                border = (Border)tester.getLastRenderedPage().get("myBorder2");
                assertNotNull(border);
                assertFalse("".equals(document));
-               assertTrue(document.contains("<span wicket:id=\"myBorder2\" 
testAttr=\"myValue\"><wicket:border>before body - 
<wicket:body>border</wicket:body> - after body</wicket:border></span>"));
+               assertTrue(document.contains(
+                       "<span wicket:id=\"myBorder2\" 
testAttr=\"myValue\"><wicket:border>before body - 
<wicket:body>border</wicket:body> - after body</wicket:border></span>"));
 
                // do the same test twice. Igor reported a problem with that, 
so we have to test it.
                border = (Border)tester.getLastRenderedPage().get("myBorder2");
                assertNotNull(border);
                assertFalse("".equals(document));
-               assertTrue(document.contains("<span wicket:id=\"myBorder2\" 
testAttr=\"myValue\"><wicket:border>before body - 
<wicket:body>border</wicket:body> - after body</wicket:border></span>"));
+               assertTrue(document.contains(
+                       "<span wicket:id=\"myBorder2\" 
testAttr=\"myValue\"><wicket:border>before body - 
<wicket:body>border</wicket:body> - after body</wicket:border></span>"));
 
                WebMarkupContainer container = 
(WebMarkupContainer)tester.getLastRenderedPage().get("test");
                assertNotNull(container);
@@ -96,7 +104,7 @@ public class SimplePageTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void renderHomePage_2a() throws Exception
+       void renderHomePage_2a() throws Exception
        {
                // Render the component without having rendered the page 
previously
                SimplePage page = new SimplePage();
@@ -108,7 +116,8 @@ public class SimplePageTest extends WicketTestCase
 
                Panel panel = (Panel)page.get("myPanel");
                assertNotNull(panel);
-               assertTrue(document.contains("<wicket:panel>Inside the 
panel<span wicket:id=\"label\">mein Label</span></wicket:panel>"));
+               assertTrue(document.contains(
+                       "<wicket:panel>Inside the panel<span 
wicket:id=\"label\">mein Label</span></wicket:panel>"));
 
                label = (Label)page.get("myPanel:label");
                assertNotNull(label);
@@ -116,16 +125,19 @@ public class SimplePageTest extends WicketTestCase
 
                Border border = (Border)page.get("myBorder");
                assertNotNull(border);
-               assertTrue(document.contains("<wicket:border>before body - 
<wicket:body>border</wicket:body> - after body</wicket:border>"));
+               assertTrue(document.contains(
+                       "<wicket:border>before body - 
<wicket:body>border</wicket:body> - after body</wicket:border>"));
 
                border = (Border)page.get("myBorder2");
                assertNotNull(border);
-               assertTrue(document.contains("<span wicket:id=\"myBorder2\" 
testAttr=\"myValue\"><wicket:border>before body - 
<wicket:body>border</wicket:body> - after body</wicket:border></span>"));
+               assertTrue(document.contains(
+                       "<span wicket:id=\"myBorder2\" 
testAttr=\"myValue\"><wicket:border>before body - 
<wicket:body>border</wicket:body> - after body</wicket:border></span>"));
 
                // do the same test twice. Igor reported a problem with that, 
so we have to test it.
                border = (Border)page.get("myBorder2");
                assertNotNull(border);
-               assertTrue(document.contains("<span wicket:id=\"myBorder2\" 
testAttr=\"myValue\"><wicket:border>before body - 
<wicket:body>border</wicket:body> - after body</wicket:border></span>"));
+               assertTrue(document.contains(
+                       "<span wicket:id=\"myBorder2\" 
testAttr=\"myValue\"><wicket:border>before body - 
<wicket:body>border</wicket:body> - after body</wicket:border></span>"));
 
                WebMarkupContainer container = 
(WebMarkupContainer)page.get("test");
                assertNotNull(container);
@@ -140,7 +152,7 @@ public class SimplePageTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void renderHomePage_2b() throws Exception
+       void renderHomePage_2b() throws Exception
        {
                // Render the component without having rendered the page 
previously
                SimplePage page = new SimplePage();
@@ -199,7 +211,7 @@ public class SimplePageTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void renderHomePage_3() throws Exception
+       void renderHomePage_3() throws Exception
        {
                executeTest(SimplePage_3.class, 
"SimplePageExpectedResult_3.html");
        }
@@ -208,7 +220,7 @@ public class SimplePageTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void renderHomePage_4() throws Exception
+       void renderHomePage_4() throws Exception
        {
                boolean hit = false;
                try
@@ -223,14 +235,14 @@ public class SimplePageTest extends WicketTestCase
                        assertTrue(mex.getMessage().contains("<span>"));
                        
assertTrue(mex.toString().contains("SimplePage_4.html"));
                }
-               assertTrue("Did expect a MarkupException", hit);
+               assertTrue(hit, "Did expect a MarkupException");
        }
 
        /**
         * @throws Exception
         */
        @Test
-       public void renderHomePage_5() throws Exception
+       void renderHomePage_5() throws Exception
        {
                boolean hit = false;
                try
@@ -241,14 +253,14 @@ public class SimplePageTest extends WicketTestCase
                {
                        hit = true;
                }
-               assertTrue("Did expect a MarkupNotFoundException", hit);
+               assertTrue(hit, "Did expect a MarkupNotFoundException");
        }
 
        /**
         * @throws Exception
         */
        @Test
-       public void renderHomePage_6() throws Exception
+       void renderHomePage_6() throws Exception
        {
                boolean hit = false;
                try
@@ -259,14 +271,14 @@ public class SimplePageTest extends WicketTestCase
                {
                        hit = true;
                }
-               assertTrue("Did expect a MarkupException", hit);
+               assertTrue(hit, "Did expect a MarkupException");
        }
 
        /**
         * @throws Exception
         */
        @Test
-       public void renderHomePage_7() throws Exception
+       void renderHomePage_7() throws Exception
        {
                
tester.getApplication().getResourceSettings().setThrowExceptionOnMissingResource(false);
                // This is for issue 
https://issues.apache.org/jira/browse/WICKET-590
@@ -277,7 +289,7 @@ public class SimplePageTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void renderHomePage_8() throws Exception
+       void renderHomePage_8() throws Exception
        {
                boolean hit = false;
                try
@@ -288,14 +300,14 @@ public class SimplePageTest extends WicketTestCase
                {
                        hit = true;
                }
-               assertTrue("Did expect a MarkupException", hit);
+               assertTrue(hit, "Did expect a MarkupException");
        }
 
        /**
         * @throws Exception
         */
        @Test
-       public void renderHomePage_9() throws Exception
+       void renderHomePage_9() throws Exception
        {
                executeTest(SimplePage_9.class, 
"SimplePageExpectedResult_9.html");
        }
@@ -304,19 +316,20 @@ public class SimplePageTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void renderHomePage_10() throws Exception
+       void renderHomePage_10() throws Exception
        {
                executeTest(new SimplePage_10(false), 
"SimplePageExpectedResult_10.html");
                tester.startPage(new SimplePage_10(true));
                String document = tester.getLastResponseAsString();
-               assertTrue(document.contains("<wicket:panel>Inside the 
panel<span wicket:id=\"label\">mein Label</span></wicket:panel>"));
+               assertTrue(document.contains(
+                       "<wicket:panel>Inside the panel<span 
wicket:id=\"label\">mein Label</span></wicket:panel>"));
        }
 
        /**
         * @throws Exception
         */
        @Test
-       public void renderHomePage_11() throws Exception
+       void renderHomePage_11() throws Exception
        {
                executeTest(SimplePage_11.class, 
"SimplePageExpectedResult_11.html");
        }
@@ -325,7 +338,7 @@ public class SimplePageTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void renderHomePage_12() throws Exception
+       void renderHomePage_12() throws Exception
        {
                executeTest(SimplePage_12.class, 
"SimplePageExpectedResult_12.html");
        }
@@ -334,7 +347,7 @@ public class SimplePageTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void renderHomePage_13() throws Exception
+       void renderHomePage_13() throws Exception
        {
                executeTest(SimplePage_13.class, 
"SimplePageExpectedResult_13.html");
        }
@@ -343,7 +356,7 @@ public class SimplePageTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void renderHomePage_14() throws Exception
+       void renderHomePage_14() throws Exception
        {
                executeTest(SimplePage_14.class, 
"SimplePageExpectedResult_14.html");
        }
@@ -352,7 +365,7 @@ public class SimplePageTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void renderHomePage_15() throws Exception
+       void renderHomePage_15() throws Exception
        {
                executeTest(SimplePage_15.class, 
"SimplePageExpectedResult_15.html");
        }
@@ -361,7 +374,7 @@ public class SimplePageTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void renderHomePage_16() throws Exception
+       void renderHomePage_16() throws Exception
        {
                executeTest(SimplePage_16.class, 
"SimplePageExpectedResult_16.html");
        }

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/SimplePage_9.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/SimplePage_9.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/SimplePage_9.java
index c8eb668..23df29e 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/SimplePage_9.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/SimplePage_9.java
@@ -49,7 +49,7 @@ public class SimplePage_9 extends WebPage
                 * 
                 * @param id
                 */
-               public TestContainer(String id)
+        TestContainer(String id)
                {
                        super(id);
                        add(new Label("test", "myTest"));

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/SimpleResponsePageClassTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/SimpleResponsePageClassTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/SimpleResponsePageClassTest.java
index 54fa671..6f73267 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/SimpleResponsePageClassTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/SimpleResponsePageClassTest.java
@@ -16,23 +16,23 @@
  */
 package org.apache.wicket.markup.html.basic;
 
-import static org.hamcrest.CoreMatchers.instanceOf;
+import static org.assertj.core.api.Assertions.assertThat;
 
 import org.apache.wicket.markup.html.form.Form;
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * @author jcompagner
  * 
  */
-public class SimpleResponsePageClassTest extends WicketTestCase
+class SimpleResponsePageClassTest extends WicketTestCase
 {
        /**
         * @throws Exception
         */
        @Test
-       public void responsePageClass() throws Exception
+       void responsePageClass() throws Exception
        {
                tester.startPage(SimpleResponsePageClass.class);
                SimpleResponsePageClass manageBook = 
(SimpleResponsePageClass)tester.getLastRenderedPage();
@@ -42,6 +42,6 @@ public class SimpleResponsePageClassTest extends 
WicketTestCase
                tester.submitForm(form);
 
                // assertion failed, getLastRenderedPage() return null.
-               assertThat(tester.getLastRenderedPage(), 
instanceOf(SimplePage.class));
+               
assertThat(tester.getLastRenderedPage()).isInstanceOf(SimplePage.class);
        }
 }

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/XmlBasePage.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/XmlBasePage.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/XmlBasePage.java
index 3934366..7fef7c2 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/XmlBasePage.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/XmlBasePage.java
@@ -32,7 +32,7 @@ public class XmlBasePage extends WebPage
        /**
         * Construct.
         */
-       public XmlBasePage()
+    XmlBasePage()
        {
        }
 

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/XmlPageTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/XmlPageTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/XmlPageTest.java
index dbfd25f..352f1cc 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/XmlPageTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/basic/XmlPageTest.java
@@ -22,7 +22,7 @@ import 
org.apache.wicket.resource.IsoPropertiesFilePropertiesLoader;
 import org.apache.wicket.resource.PropertiesFactory;
 import org.apache.wicket.resource.XmlFilePropertiesLoader;
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -31,7 +31,7 @@ import org.slf4j.LoggerFactory;
  * 
  * @author Juergen Donnerstag
  */
-public class XmlPageTest extends WicketTestCase
+class XmlPageTest extends WicketTestCase
 {
        private static final Logger log = 
LoggerFactory.getLogger(XmlPageTest.class);
 
@@ -39,7 +39,7 @@ public class XmlPageTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void renderHomePage_1() throws Exception
+    void renderHomePage_1() throws Exception
        {
                executeTest(XmlPage_1.class, "XmlPageExpectedResult_1.xml");
        }
@@ -48,7 +48,7 @@ public class XmlPageTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void renderHomePage_2() throws Exception
+    void renderHomePage_2() throws Exception
        {
                IPropertiesFactory myFac = new 
MyPropertiesFactory(tester.getApplication());
                
tester.getApplication().getResourceSettings().setPropertiesFactory(myFac);
@@ -60,7 +60,7 @@ public class XmlPageTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void renderHomePage_3() throws Exception
+    void renderHomePage_3() throws Exception
        {
                IPropertiesFactory myFac = new 
MyPropertiesFactory(tester.getApplication());
                
tester.getApplication().getResourceSettings().setPropertiesFactory(myFac);
@@ -75,7 +75,7 @@ public class XmlPageTest extends WicketTestCase
                 * 
                 * @param application
                 */
-               public MyPropertiesFactory(Application application)
+        MyPropertiesFactory(Application application)
                {
                        super(application.getResourceSettings());
 

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/border/BorderWithForm.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/border/BorderWithForm.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/border/BorderWithForm.java
index 9bf4762..13d2011 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/border/BorderWithForm.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/border/BorderWithForm.java
@@ -19,7 +19,7 @@ package org.apache.wicket.markup.html.border;
 import org.apache.wicket.markup.html.WebMarkupContainer;
 import org.apache.wicket.markup.html.form.Form;
 
-public class BorderWithForm extends Border
+class BorderWithForm extends Border
 {
 
        public BorderWithForm(String id)

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/border/ComponentBorderTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/border/ComponentBorderTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/border/ComponentBorderTest.java
index bc2f2fd..51c1f63 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/border/ComponentBorderTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/border/ComponentBorderTest.java
@@ -16,18 +16,22 @@
  */
 package org.apache.wicket.markup.html.border;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
 import org.apache.wicket.Page;
 import org.apache.wicket.ajax.markup.html.AjaxLink;
 import org.apache.wicket.markup.html.WebMarkupContainer;
 import org.apache.wicket.model.Model;
 import org.apache.wicket.util.tester.FormTester;
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * @author jcompagner
  */
-public class ComponentBorderTest extends WicketTestCase
+class ComponentBorderTest extends WicketTestCase
 {
        private static final String TEST_TEXT = "Meaning of life? 42!";
 
@@ -37,7 +41,7 @@ public class ComponentBorderTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void componentUseCheck() throws Exception
+       void componentUseCheck() throws Exception
        {
                /*
                 * Suppose:
@@ -65,7 +69,7 @@ public class ComponentBorderTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void hideableBorder() throws Exception
+       void hideableBorder() throws Exception
        {
                executeTest(HideableBorderPage.class, 
"HideableBorderPage_ExpectedResult.html");
 
@@ -83,72 +87,68 @@ public class ComponentBorderTest extends WicketTestCase
                ajaxResponse = tester.getLastResponseAsString();
                tester.assertComponentOnAjaxResponse(wrapper);
        }
-       
+
        @Test
-       public void borderWithForm() throws Exception
+       void borderWithForm() throws Exception
        {
                /*
                 * Suppose we have a border like this:
                 * 
-                * <div wicket:id="border">
-                *      <form>
-                *              <body/>
-                *      </form>
-                * </div>
+                * <div wicket:id="border"> <form> <body/> </form> </div>
                 * 
-                * Any form components inside its body must be correctly 
-                * submitted with the outer form.
+                * Any form components inside its body must be correctly 
submitted with the outer form.
                 */
                Model<String> model = Model.of("");
                BorderWithFormPage page = new BorderWithFormPage(model);
-               
+
                tester.startPage(page);
-               
-               FormTester formTester = tester.
-                       
newFormTester("borderContainer:formBorder:borderContainer:form");
-               
+
+               FormTester formTester = tester
+                       
.newFormTester("borderContainer:formBorder:borderContainer:form");
+
                formTester.setValue("formBorder_body:text", TEST_TEXT);
                formTester.submit();
-               
+
                assertEquals(TEST_TEXT, model.getObject());
        }
-       
+
        @Test
-       public void borderWithEnclosurePage() throws Exception
+       void borderWithEnclosurePage() throws Exception
        {
                tester.startPage(BorderWithEnclosurePage.class);
                tester.assertRenderedPage(BorderWithEnclosurePage.class);
        }
-       
+
        @Test
-       public void borderWithAutoLabel() throws Exception
+       void borderWithAutoLabel() throws Exception
        {
                tester.startPage(BorderWithAutoLabelPage.class);
                tester.assertRenderedPage(BorderWithAutoLabelPage.class);
        }
-       
+
        @Test
-       public void borderWithBodyInsideAnotherBody() throws Exception
+       void borderWithBodyInsideAnotherBody() throws Exception
        {
                BorderWithNestedBodyPage page = 
tester.startPage(BorderWithNestedBodyPage.class);
-               
-               Border borderTest = (Border) page.get("outerBorder");
+
+               Border borderTest = (Border)page.get("outerBorder");
                Border nestedBorder = (Border)borderTest.get("nestedBorder");
-               
+
                assertNotNull(borderTest.getBodyContainer().getParent());
                assertNotNull(nestedBorder.getBodyContainer().getParent());
-               
-               //https://issues.apache.org/jira/browse/WICKET-6303
+
+               // https://issues.apache.org/jira/browse/WICKET-6303
                assertTrue(page.isBehaviorRendered());
        }
-       
+
        /**
         * https://issues.apache.org/jira/browse/WICKET-6374
+        *
         * @throws Exception
         */
        @Test
-    public void borderExtendingMarkup() throws Exception
-    {
-        tester.startComponentInPage(ExtendedBorder.class);
-    }
+       void borderExtendingMarkup() throws Exception
+       {
+               tester.startComponentInPage(ExtendedBorder.class);
+       }
 }

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/border/ExtedableBorder.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/border/ExtedableBorder.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/border/ExtedableBorder.java
index cdd4a81..bcfe041 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/border/ExtedableBorder.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/border/ExtedableBorder.java
@@ -23,7 +23,7 @@ public class ExtedableBorder extends Border
      */
     private static final long serialVersionUID = 1431333408002477444L;
 
-    public ExtedableBorder(final String id)
+    ExtedableBorder(final String id)
        {
                super(id);
        }

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/debug/WicketComponentTreeTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/debug/WicketComponentTreeTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/debug/WicketComponentTreeTest.java
index 5d33954..2a9613e 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/debug/WicketComponentTreeTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/debug/WicketComponentTreeTest.java
@@ -17,14 +17,14 @@
 package org.apache.wicket.markup.html.debug;
 
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  * Test the component: PageView
  * 
  * @author Juergen Donnerstag
  */
-public class WicketComponentTreeTest extends WicketTestCase
+class WicketComponentTreeTest extends WicketTestCase
 {
 
        /**
@@ -33,7 +33,7 @@ public class WicketComponentTreeTest extends WicketTestCase
         * @throws Exception
         */
        @Test
-       public void test1() throws Exception
+    void test1() throws Exception
        {
                // disable the component use check, as this consumes extra
                // memory (label size doubles to 1.1K)

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/form/AbstractCheckGroupTestPage.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/form/AbstractCheckGroupTestPage.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/form/AbstractCheckGroupTestPage.java
index fbb8567..f875ab1 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/form/AbstractCheckGroupTestPage.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/form/AbstractCheckGroupTestPage.java
@@ -49,7 +49,7 @@ public abstract class AbstractCheckGroupTestPage extends 
WebPage
         * 
         * @param list
         */
-       public AbstractCheckGroupTestPage(List<String> list)
+    AbstractCheckGroupTestPage(List<String> list)
        {
 
                form = new Form<Void>("form");

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/form/AbstractTextComponentConvertEmptyStringsToNullTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/form/AbstractTextComponentConvertEmptyStringsToNullTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/form/AbstractTextComponentConvertEmptyStringsToNullTest.java
index 6e688d9..2d51d77 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/form/AbstractTextComponentConvertEmptyStringsToNullTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/form/AbstractTextComponentConvertEmptyStringsToNullTest.java
@@ -16,6 +16,9 @@
  */
 package org.apache.wicket.markup.html.form;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
 import java.util.Locale;
 
 import org.apache.wicket.MarkupContainer;
@@ -27,18 +30,18 @@ import org.apache.wicket.util.resource.IResourceStream;
 import org.apache.wicket.util.resource.StringResourceStream;
 import org.apache.wicket.util.string.Strings;
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 
 /**
  */
-public class AbstractTextComponentConvertEmptyStringsToNullTest extends 
WicketTestCase
+class AbstractTextComponentConvertEmptyStringsToNullTest extends WicketTestCase
 {
 
        /**
         * @throws Exception
         */
        @Test
-       public void convertEmptyStringsToNull() throws Exception
+       void convertEmptyStringsToNull() throws Exception
        {
                StringArrayPage page = tester.startPage(StringArrayPage.class);
 
@@ -55,10 +58,10 @@ public class 
AbstractTextComponentConvertEmptyStringsToNullTest extends WicketTe
                private static final long serialVersionUID = 1L;
 
                /**      */
-               public String[] array = new String[0];
+               String[] array = new String[0];
 
                /**      */
-               public Form<Void> form;
+               Form<Void> form;
 
                /**
                 * Construct.

http://git-wip-us.apache.org/repos/asf/wicket/blob/645f239c/wicket-core/src/test/java/org/apache/wicket/markup/html/form/AutoFormLabelPickupTest.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/form/AutoFormLabelPickupTest.java
 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/form/AutoFormLabelPickupTest.java
index 204f949..e3d3908 100644
--- 
a/wicket-core/src/test/java/org/apache/wicket/markup/html/form/AutoFormLabelPickupTest.java
+++ 
b/wicket-core/src/test/java/org/apache/wicket/markup/html/form/AutoFormLabelPickupTest.java
@@ -16,6 +16,8 @@
  */
 package org.apache.wicket.markup.html.form;
 
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
 import java.util.Locale;
 
 import org.apache.wicket.Page;
@@ -24,24 +26,24 @@ import org.apache.wicket.markup.html.WebPage;
 import org.apache.wicket.model.IModel;
 import org.apache.wicket.model.Model;
 import org.apache.wicket.util.tester.WicketTestCase;
-import org.junit.Before;
-import org.junit.Test;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 @SuppressWarnings({ "rawtypes", "serial", "unchecked" })
-public class AutoFormLabelPickupTest extends WicketTestCase
+class AutoFormLabelPickupTest extends WicketTestCase
 {
-       public static class PrintLabelPage extends WebPage
+       static class PrintLabelPage extends WebPage
        {
-               public PrintLabelPage(IModel labelModel)
+               PrintLabelPage(IModel labelModel)
                {
                        Form form = new Form("form");
                        add(form);
                        form.add(new TextField("input", 
Model.of("")).setLabel(labelModel));
                }
        }
-       public static class PickUpLabelPage extends WebPage
+       static class PickUpLabelPage extends WebPage
        {
-               public PickUpLabelPage(IModel labelModel)
+               PickUpLabelPage(IModel labelModel)
                {
                        Form form = new Form("form");
                        add(form);
@@ -55,28 +57,28 @@ public class AutoFormLabelPickupTest extends WicketTestCase
        /**
         * 
         */
-       @Before
-       public void before()
+       @BeforeEach
+       void before()
        {
                Session.get().setLocale(Locale.US);
        }
 
        @Test
-       public void labelIsPrintedFromModel() throws Exception
+       void labelIsPrintedFromModel() throws Exception
        {
                tester.startPage(new PrintLabelPage(Model.of("label from 
model")));
                tester.assertContains("<label wicket:for=\"input\" 
id=\"input2-w-lbl\" for=\"input2\">\\|label from model\\|</label>");
        }
 
        @Test
-       public void labelIsPrintedFromProperties() throws Exception
+       void labelIsPrintedFromProperties() throws Exception
        {
                tester.startPage(new PrintLabelPage(Model.of((String)null)));
                tester.assertContains("<label wicket:for=\"input\" 
id=\"input2-w-lbl\" for=\"input2\">\\|label from properties\\|</label>");
        }
 
        @Test
-       public void labelIsPickedUpFromMarkup() throws Exception
+       void labelIsPickedUpFromMarkup() throws Exception
        {
                tester.startPage(new PickUpLabelPage(null));
                assertEquals(
@@ -86,7 +88,7 @@ public class AutoFormLabelPickupTest extends WicketTestCase
        }
 
        @Test
-       public void labelIsPickedUpFromProperties() throws Exception
+       void labelIsPickedUpFromProperties() throws Exception
        {
                tester.startPage(new PickUpLabelPage(null));
                assertEquals(
@@ -96,7 +98,7 @@ public class AutoFormLabelPickupTest extends WicketTestCase
        }
 
        @Test
-       public void withoutAutolabel() throws Exception
+       void withoutAutolabel() throws Exception
        {
                tester.startPage(new PickUpLabelPage(null));
                tester.assertContains("<label>label from markup without 
autolabel</label>");
@@ -107,7 +109,7 @@ public class AutoFormLabelPickupTest extends WicketTestCase
        }
 
        @Test
-       public void localeChangesAreDetectedWithExplicitMessageKeys() throws 
Exception
+       void localeChangesAreDetectedWithExplicitMessageKeys() throws Exception
        {
                Session.get().setLocale(Locale.GERMAN);
                tester.startPage(new PickUpLabelPage(null));
@@ -129,7 +131,7 @@ public class AutoFormLabelPickupTest extends WicketTestCase
        }
 
        @Test
-       public void localeChangesAreDetectedWithDefaultLabels() throws Exception
+       void localeChangesAreDetectedWithDefaultLabels() throws Exception
        {
                Session.get().setLocale(Locale.GERMAN);
                tester.startPage(new PickUpLabelPage(null));
@@ -151,7 +153,7 @@ public class AutoFormLabelPickupTest extends WicketTestCase
        }
 
        @Test
-       public void defaultLabelIsPickedUpFromProperties() throws Exception
+       void defaultLabelIsPickedUpFromProperties() throws Exception
        {
                tester.startPage(new PickUpLabelPage(null));
                assertEquals(

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