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reta pushed a commit to branch 3.6.x-fixes
in repository https://gitbox.apache.org/repos/asf/cxf.git


The following commit(s) were added to refs/heads/3.6.x-fixes by this push:
     new f6227465600 Bump net.sourceforge.pmd:pmd-java from 7.24.0 to 7.25.0 
(#3197)
f6227465600 is described below

commit f6227465600f343b1510130ba63ccf7d39045707
Author: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
AuthorDate: Mon Jun 15 09:01:26 2026 -0400

    Bump net.sourceforge.pmd:pmd-java from 7.24.0 to 7.25.0 (#3197)
    
    * Bump net.sourceforge.pmd:pmd-java from 7.24.0 to 7.25.0
    
    Bumps [net.sourceforge.pmd:pmd-java](https://github.com/pmd/pmd) from 
7.24.0 to 7.25.0.
    - [Release notes](https://github.com/pmd/pmd/releases)
    - 
[Commits](https://github.com/pmd/pmd/compare/pmd_releases/7.24.0...pmd_releases/7.25.0)
    
    ---
    updated-dependencies:
    - dependency-name: net.sourceforge.pmd:pmd-java
      dependency-version: 7.25.0
      dependency-type: direct:production
      update-type: version-update:semver-minor
    ...
    
    Signed-off-by: dependabot[bot] <[email protected]>
    
    * Fix PMD violations
    
    ---------
    
    Signed-off-by: dependabot[bot] <[email protected]>
    Co-authored-by: dependabot[bot] 
<49699333+dependabot[bot]@users.noreply.github.com>
    Co-authored-by: Andriy Redko <[email protected]>
---
 .../main/java/org/apache/cxf/attachment/.gitignore |   1 +
 .../org/apache/cxf/common/util/StreamPrinter.java  |   1 +
 .../java/org/apache/cxf/helpers/FileUtils.java     |  14 +--
 .../cxf/workqueue/AutomaticWorkQueueImpl.java      |   1 +
 .../cxf/workqueue/AutomaticWorkQueueTest.java      |   1 +
 parent/pom.xml                                     |   2 +-
 .../cxf/jaxrs/provider/BinaryDataProviderTest.java |   3 +-
 .../jaxrs/provider/FormEncodingProviderTest.java   |   4 +-
 .../jaxrs/provider/JAXBElementProviderTest.java    |   2 +-
 .../jaxrs/provider/PrimitiveTextProviderTest.java  |   6 +-
 .../java/org/apache/cxf/jaxws/JaxWsClientTest.java |  32 +++----
 .../jaxws/context/WebServiceContextImplTest.java   |  21 ++---
 .../cxf/endpoint/dynamic/DynamicClientFactory.java |  12 +--
 .../java/org/apache/cxf/frontend/WSDLGetUtils.java |  48 +++-------
 .../apache/cxf/javascript/JsXMLHttpRequest.java    |  16 ++--
 .../apache/cxf/javascript/fortest/MtoMImpl.java    |   3 +-
 .../fortest/MtoMParameterBeanNoDataHandler.java    |  12 +--
 .../cxf/jaxrs/client/ThreadLocalClientState.java   |   1 +
 .../provider/aegis/AegisElementProviderTest.java   |  13 +--
 .../http/asyncclient/AsyncHTTPConduitFactory.java  |   1 +
 .../asyncclient/hc5/AsyncHTTPConduitFactory.java   |   1 +
 .../transport/http/DestinationRegistryImpl.java    |  22 ++---
 .../cxf/transport/websocket/WebSocketUtils.java    |   3 +-
 .../jetty10/Jetty10WebSocketDestination.java       |   2 -
 .../cxf/wsdl/service/factory/ClassReader.java      |   5 +-
 .../apache/cxf/wsdl11/WSDLServiceBuilderTest.java  |   5 +-
 .../org/apache/cxf/wsn/jms/JmsSubscription.java    |   1 +
 .../cxf/systest/jaxrs/BookServerAsyncClient.java   |   3 +-
 .../apache/cxf/systest/jaxrs/BookStoreSpring.java  |   5 +-
 .../jaxrs/JAXRSClientServerSpringBookTest.java     |   6 +-
 .../reactive/AbstractCompletableFutureServer.java  |   3 +-
 .../org/apache/cxf/systest/jaxws/JAXWSServer.java  |  40 ++++----
 .../apache/cxf/systest/jaxrs/sse/BookStore.java    | 104 ++++++++++-----------
 .../apache/cxf/systest/jaxrs/sse/BookStore2.java   |  88 ++++++++---------
 .../spring/boot/SpringClientOnlyJaxrsTest.java     |   6 +-
 .../spring/boot/SpringJaxrsApplicationTest.java    |  22 ++---
 .../boot/SpringJaxrsClassesScanningTest.java       |   4 +-
 .../boot/SpringJaxrsComponentScanningTest.java     |   4 +-
 .../systest/jaxrs/spring/boot/SpringJaxrsTest.java |  20 ++--
 .../jaxrs/spring/boot/SpringSseEmitterTest.java    |   4 +-
 .../systest/jaxws/spring/boot/SpringJaxwsTest.java |  17 ++--
 .../jaxws/spring/boot/SpringJaxwsTimedTest.java    |   7 +-
 .../systest/hc5/jaxrs/BookServerAsyncClient.java   |   4 +-
 .../systest/hc/jaxrs/BookServerAsyncClient.java    |   3 +-
 .../http/auth/DigestAuthSupplierJettyTest.java     |   2 +-
 .../apache/cxf/systest/mtom/ClientMtomXopTest.java |   2 +-
 .../apache/cxf/systest/type_test/I18NStrings.java  |   6 +-
 .../systest/ws/addr_fromjava/WSAFromJavaTest.java  |  19 +---
 .../systest/ws/addr_fromwsdl/WSAFromWSDLTest.java  |  19 +---
 .../apache/cxf/testutil/common/ServerLauncher.java |   1 +
 .../corba/idlpreprocessor/IncludeStackEntry.java   |   3 +-
 .../idlpreprocessor/IdlPreprocessorReaderTest.java |   3 +-
 .../tools/validator/internal/ValidatorUtil.java    |   3 +-
 53 files changed, 278 insertions(+), 353 deletions(-)

diff --git a/core/src/main/java/org/apache/cxf/attachment/.gitignore 
b/core/src/main/java/org/apache/cxf/attachment/.gitignore
new file mode 100644
index 00000000000..12ef6878e36
--- /dev/null
+++ b/core/src/main/java/org/apache/cxf/attachment/.gitignore
@@ -0,0 +1 @@
+/AttachmentUtil.java
diff --git a/core/src/main/java/org/apache/cxf/common/util/StreamPrinter.java 
b/core/src/main/java/org/apache/cxf/common/util/StreamPrinter.java
index fa8828764d5..8dee8e49c36 100644
--- a/core/src/main/java/org/apache/cxf/common/util/StreamPrinter.java
+++ b/core/src/main/java/org/apache/cxf/common/util/StreamPrinter.java
@@ -26,6 +26,7 @@ import java.io.InputStreamReader;
 import java.io.OutputStream;
 import java.io.PrintWriter;
 
+@SuppressWarnings("PMD.OverridingThreadRun")
 class StreamPrinter extends Thread {
     private InputStream is;
     private String msg;
diff --git a/core/src/main/java/org/apache/cxf/helpers/FileUtils.java 
b/core/src/main/java/org/apache/cxf/helpers/FileUtils.java
index 5d1fc10ea42..18a330da139 100644
--- a/core/src/main/java/org/apache/cxf/helpers/FileUtils.java
+++ b/core/src/main/java/org/apache/cxf/helpers/FileUtils.java
@@ -89,12 +89,7 @@ public final class FileUtils {
             if (shutdownHook != null) {
                 Runtime.getRuntime().removeShutdownHook(shutdownHook);
             }
-            shutdownHook = new Thread() {
-                @Override
-                public void run() {
-                    removeDir(defaultTempDir, true);
-                }
-            };
+            shutdownHook = new Thread(() -> removeDir(defaultTempDir, true));
             Runtime.getRuntime().addShutdownHook(shutdownHook);
 
         }
@@ -175,12 +170,7 @@ public final class FileUtils {
         }
         if (addHook) {
             final File f2 = newTmpDir;
-            Thread hook = new Thread() {
-                @Override
-                public void run() {
-                    removeDir(f2, true);
-                }
-            };
+            Thread hook = new Thread(() -> removeDir(f2, true));
             Runtime.getRuntime().addShutdownHook(hook);
         }
         return newTmpDir;
diff --git 
a/core/src/main/java/org/apache/cxf/workqueue/AutomaticWorkQueueImpl.java 
b/core/src/main/java/org/apache/cxf/workqueue/AutomaticWorkQueueImpl.java
index 2478fb9ce56..fb58f0eb25c 100644
--- a/core/src/main/java/org/apache/cxf/workqueue/AutomaticWorkQueueImpl.java
+++ b/core/src/main/java/org/apache/cxf/workqueue/AutomaticWorkQueueImpl.java
@@ -287,6 +287,7 @@ public class AutomaticWorkQueueImpl implements 
AutomaticWorkQueue {
 
     }
 
+    @SuppressWarnings("PMD.OverridingThreadRun")
     class WatchDog extends Thread {
         DelayQueue<DelayedTaskWrapper> delayQueue;
         AtomicBoolean shutdown = new AtomicBoolean(false);
diff --git 
a/core/src/test/java/org/apache/cxf/workqueue/AutomaticWorkQueueTest.java 
b/core/src/test/java/org/apache/cxf/workqueue/AutomaticWorkQueueTest.java
index f9c3af30a67..35c5a016c7a 100644
--- a/core/src/test/java/org/apache/cxf/workqueue/AutomaticWorkQueueTest.java
+++ b/core/src/test/java/org/apache/cxf/workqueue/AutomaticWorkQueueTest.java
@@ -489,6 +489,7 @@ public class AutomaticWorkQueueTest {
         void workItemCompleted(String name);
     }
 
+    @SuppressWarnings("PMD.OverridingThreadRun")
     public static class DeadLockThread extends Thread implements Callback {
         public static final long DEFAULT_WORK_TIME = 10L;
         public static final int DEFAULT_WORK_ITEMS = 200;
diff --git a/parent/pom.xml b/parent/pom.xml
index 3020d0640f6..7f9eb18d960 100644
--- a/parent/pom.xml
+++ b/parent/pom.xml
@@ -440,7 +440,7 @@
                         <dependency>
                             <groupId>net.sourceforge.pmd</groupId>
                             <artifactId>pmd-java</artifactId>
-                            <version>7.24.0</version>
+                            <version>7.25.0</version>
                         </dependency>
                     </dependencies>
                     <configuration>
diff --git 
a/rt/frontend/jaxrs/src/test/java/org/apache/cxf/jaxrs/provider/BinaryDataProviderTest.java
 
b/rt/frontend/jaxrs/src/test/java/org/apache/cxf/jaxrs/provider/BinaryDataProviderTest.java
index b60e27615fa..a99e852481c 100644
--- 
a/rt/frontend/jaxrs/src/test/java/org/apache/cxf/jaxrs/provider/BinaryDataProviderTest.java
+++ 
b/rt/frontend/jaxrs/src/test/java/org/apache/cxf/jaxrs/provider/BinaryDataProviderTest.java
@@ -28,6 +28,7 @@ import java.io.OutputStream;
 import java.io.Reader;
 import java.io.StringReader;
 import java.lang.annotation.Annotation;
+import java.nio.charset.StandardCharsets;
 
 import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.StreamingOutput;
@@ -105,7 +106,7 @@ public class BinaryDataProviderTest {
     @Test
     public void testReadBytesFromUtf8() throws Exception {
         MessageBodyReader p = new BinaryDataProvider();
-        byte[] utf8Bytes = "世界ーファイル".getBytes("UTF-16");
+        byte[] utf8Bytes = "世界ーファイル".getBytes(StandardCharsets.UTF_16);
         byte[] readBytes = (byte[])p.readFrom(byte[].class, byte[].class, new 
Annotation[]{},
                                           
MediaType.APPLICATION_OCTET_STREAM_TYPE,
                                           new MetadataMap<String, Object>(),
diff --git 
a/rt/frontend/jaxrs/src/test/java/org/apache/cxf/jaxrs/provider/FormEncodingProviderTest.java
 
b/rt/frontend/jaxrs/src/test/java/org/apache/cxf/jaxrs/provider/FormEncodingProviderTest.java
index 99b44bfcfa0..edf74f9a8ba 100644
--- 
a/rt/frontend/jaxrs/src/test/java/org/apache/cxf/jaxrs/provider/FormEncodingProviderTest.java
+++ 
b/rt/frontend/jaxrs/src/test/java/org/apache/cxf/jaxrs/provider/FormEncodingProviderTest.java
@@ -302,8 +302,8 @@ public class FormEncodingProviderTest {
         String eWithAcute = "\u00E9";
         String helloStringUTF16 = "name=F" + eWithAcute + "lix";
 
-        byte[] iso88591bytes = helloStringUTF16.getBytes("ISO-8859-1");
-        String helloStringISO88591 = new String(iso88591bytes, "ISO-8859-1");
+        byte[] iso88591bytes = 
helloStringUTF16.getBytes(StandardCharsets.ISO_8859_1);
+        String helloStringISO88591 = new String(iso88591bytes, 
StandardCharsets.ISO_8859_1);
         @SuppressWarnings("rawtypes")
         FormEncodingProvider<MultivaluedMap> ferp
             = new FormEncodingProvider<>();
diff --git 
a/rt/frontend/jaxrs/src/test/java/org/apache/cxf/jaxrs/provider/JAXBElementProviderTest.java
 
b/rt/frontend/jaxrs/src/test/java/org/apache/cxf/jaxrs/provider/JAXBElementProviderTest.java
index f96e436b2db..f397cb0cab2 100644
--- 
a/rt/frontend/jaxrs/src/test/java/org/apache/cxf/jaxrs/provider/JAXBElementProviderTest.java
+++ 
b/rt/frontend/jaxrs/src/test/java/org/apache/cxf/jaxrs/provider/JAXBElementProviderTest.java
@@ -117,7 +117,7 @@ public class JAXBElementProviderTest {
         String bookStringUTF16 = "<?xml version=\"1.0\" 
encoding=\"ISO-8859-1\"?>"
                                  + "<Book><name>" + nameStringUTF16 + 
"</name></Book>";
 
-        byte[] iso88591bytes = bookStringUTF16.getBytes("ISO-8859-1");
+        byte[] iso88591bytes = 
bookStringUTF16.getBytes(StandardCharsets.ISO_8859_1);
 
         JAXBElementProvider<Book> p = new JAXBElementProvider<>();
         Book book = p.readFrom(Book.class, null,
diff --git 
a/rt/frontend/jaxrs/src/test/java/org/apache/cxf/jaxrs/provider/PrimitiveTextProviderTest.java
 
b/rt/frontend/jaxrs/src/test/java/org/apache/cxf/jaxrs/provider/PrimitiveTextProviderTest.java
index 08cdd4fff37..396b70959b3 100644
--- 
a/rt/frontend/jaxrs/src/test/java/org/apache/cxf/jaxrs/provider/PrimitiveTextProviderTest.java
+++ 
b/rt/frontend/jaxrs/src/test/java/org/apache/cxf/jaxrs/provider/PrimitiveTextProviderTest.java
@@ -195,10 +195,10 @@ public class PrimitiveTextProviderTest {
                   String.class, String.class, null, 
MediaType.valueOf("text/plain;charset=ISO-8859-1"),
                   headers, os);
 
-        byte[] iso88591bytes = helloStringUTF16.getBytes("ISO-8859-1");
-        String helloStringISO88591 = new String(iso88591bytes, "ISO-8859-1");
+        byte[] iso88591bytes = 
helloStringUTF16.getBytes(StandardCharsets.ISO_8859_1);
+        String helloStringISO88591 = new String(iso88591bytes, 
StandardCharsets.ISO_8859_1);
 
-        assertEquals(helloStringISO88591, os.toString("ISO-8859-1"));
+        assertEquals(helloStringISO88591, 
os.toString(StandardCharsets.ISO_8859_1));
     }
 
     @Test
diff --git 
a/rt/frontend/jaxws/src/test/java/org/apache/cxf/jaxws/JaxWsClientTest.java 
b/rt/frontend/jaxws/src/test/java/org/apache/cxf/jaxws/JaxWsClientTest.java
index eaf1d61f6f9..a908b84229f 100644
--- a/rt/frontend/jaxws/src/test/java/org/apache/cxf/jaxws/JaxWsClientTest.java
+++ b/rt/frontend/jaxws/src/test/java/org/apache/cxf/jaxws/JaxWsClientTest.java
@@ -156,15 +156,13 @@ public class JaxWsClientTest extends AbstractJaxWsTest {
         requestContext.put(key, "ho");
 
         final Object[] result = new Object[2];
-        Thread t = new Thread() {
-            public void run() {
-                //requestContext in main thread shouldn't affect the 
requestContext in this thread
-                Map<String, Object> requestContext = 
((BindingProvider)handler).getRequestContext();
-                result[0] = requestContext.get(key);
-                requestContext.remove(key);
-                result[1] = requestContext.get(key);
-            }
-        };
+        Thread t = new Thread(() -> {
+            //requestContext in main thread shouldn't affect the 
requestContext in this thread
+            Map<String, Object> rc = 
((BindingProvider)handler).getRequestContext();
+            result[0] = rc.get(key);
+            rc.remove(key);
+            result[1] = rc.get(key);
+        });
         t.start();
         t.join();
 
@@ -196,15 +194,13 @@ public class JaxWsClientTest extends AbstractJaxWsTest {
         requestContext.put(key, "ho");
 
         final Object[] result = new Object[2];
-        Thread t = new Thread() {
-            public void run() {
-                //requestContext in main thread shouldn't affect the 
requestContext in this thread
-                Map<String, Object> requestContext = disp.getRequestContext();
-                result[0] = requestContext.get(key);
-                requestContext.remove(key);
-                result[1] = requestContext.get(key);
-            }
-        };
+        Thread t = new Thread(() -> {
+            //requestContext in main thread shouldn't affect the 
requestContext in this thread
+            Map<String, Object> rc = disp.getRequestContext();
+            result[0] = rc.get(key);
+            rc.remove(key);
+            result[1] = rc.get(key);
+        });
         t.start();
         t.join();
 
diff --git 
a/rt/frontend/jaxws/src/test/java/org/apache/cxf/jaxws/context/WebServiceContextImplTest.java
 
b/rt/frontend/jaxws/src/test/java/org/apache/cxf/jaxws/context/WebServiceContextImplTest.java
index 06ba3e088d5..ddcf45dfafa 100644
--- 
a/rt/frontend/jaxws/src/test/java/org/apache/cxf/jaxws/context/WebServiceContextImplTest.java
+++ 
b/rt/frontend/jaxws/src/test/java/org/apache/cxf/jaxws/context/WebServiceContextImplTest.java
@@ -57,22 +57,19 @@ public class WebServiceContextImplTest {
 
         assertSame(ctx, wsci.getMessageContext());
 
-        Thread t = new Thread() {
-                public void run() {
-                    WebServiceContextImpl threadLocalWSCI = new 
WebServiceContextImpl();
+        Thread t = new Thread(() -> {
+            WebServiceContextImpl threadLocalWSCI = new 
WebServiceContextImpl();
 
-                    assertNull(threadLocalWSCI.getMessageContext());
+            assertNull(threadLocalWSCI.getMessageContext());
 
-                    MessageImpl msg1 = new MessageImpl();
-                    MessageContext threadLocalCtx = new 
WrappedMessageContext(msg1);
-                    WebServiceContextImpl.setMessageContext(threadLocalCtx);
+            MessageImpl msg1 = new MessageImpl();
+            MessageContext threadLocalCtx = new WrappedMessageContext(msg1);
+            WebServiceContextImpl.setMessageContext(threadLocalCtx);
 
 
-                    assertSame(threadLocalCtx, 
threadLocalWSCI.getMessageContext());
-                    assertTrue(ctx !=  threadLocalWSCI.getMessageContext());
-
-                }
-            };
+            assertSame(threadLocalCtx, threadLocalWSCI.getMessageContext());
+            assertTrue(ctx !=  threadLocalWSCI.getMessageContext());
+        });
 
         t.start();
 
diff --git 
a/rt/frontend/simple/src/main/java/org/apache/cxf/endpoint/dynamic/DynamicClientFactory.java
 
b/rt/frontend/simple/src/main/java/org/apache/cxf/endpoint/dynamic/DynamicClientFactory.java
index 2e8b4160aad..ec1f2d3c52e 100644
--- 
a/rt/frontend/simple/src/main/java/org/apache/cxf/endpoint/dynamic/DynamicClientFactory.java
+++ 
b/rt/frontend/simple/src/main/java/org/apache/cxf/endpoint/dynamic/DynamicClientFactory.java
@@ -21,7 +21,6 @@ package org.apache.cxf.endpoint.dynamic;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
-import java.io.UnsupportedEncodingException;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
 import java.lang.reflect.Proxy;
@@ -31,6 +30,7 @@ import java.net.URISyntaxException;
 import java.net.URL;
 import java.net.URLClassLoader;
 import java.net.URLDecoder;
+import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -689,14 +689,10 @@ public class DynamicClientFactory {
                     if (url.getProtocol().startsWith("file")) {
                         File file = null;
                         // CXF-3884 use url-decoder to get the decoded file 
path from the url
-                        try {
-                            if (url.getPath() == null) {
-                                continue;
-                            }
-                            file = new File(URLDecoder.decode(url.getPath(), 
"utf-8"));
-                        } catch (UnsupportedEncodingException uee) {
-                            // ignored as utf-8 is supported
+                        if (url.getPath() == null) {
+                            continue;
                         }
+                        file = new File(URLDecoder.decode(url.getPath(), 
StandardCharsets.UTF_8));
 
                         if (null != file && file.exists()) {
                             classPath.append(file.getAbsolutePath())
diff --git 
a/rt/frontend/simple/src/main/java/org/apache/cxf/frontend/WSDLGetUtils.java 
b/rt/frontend/simple/src/main/java/org/apache/cxf/frontend/WSDLGetUtils.java
index e724e4a5f2c..beac0c02ba5 100644
--- a/rt/frontend/simple/src/main/java/org/apache/cxf/frontend/WSDLGetUtils.java
+++ b/rt/frontend/simple/src/main/java/org/apache/cxf/frontend/WSDLGetUtils.java
@@ -25,6 +25,7 @@ import java.net.URI;
 import java.net.URISyntaxException;
 import java.net.URL;
 import java.net.URLDecoder;
+import java.nio.charset.StandardCharsets;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
@@ -147,10 +148,10 @@ public class WSDLGetUtils {
 
             //
             if (params.containsKey("wsdl")) {
-                String wsdl = URLDecoder.decode(params.get("wsdl"), "utf-8");
+                String wsdl = URLDecoder.decode(params.get("wsdl"), 
StandardCharsets.UTF_8);
                 doc = writeWSDLDocument(message, mp, smp, wsdl, base, 
endpointInfo);
             } else if (params.get("xsd") != null) {
-                String xsd = URLDecoder.decode(params.get("xsd"), "utf-8");
+                String xsd = URLDecoder.decode(params.get("xsd"), 
StandardCharsets.UTF_8);
                 doc = readXSDDocument(bus, xsd, smp, base);
                 updateDoc(doc, base, mp, smp, message, xsd);
             }
@@ -175,11 +176,11 @@ public class WSDLGetUtils {
                 // resolve requested location with relative import path
                 key = new URI(xsd).resolve(loc).toString();
 
-                SchemaReference ref = smp.get(URLDecoder.decode(key, "utf-8"));
+                SchemaReference ref = smp.get(URLDecoder.decode(key, 
StandardCharsets.UTF_8));
                 if (ref == null) {
                     // if the result is not known, check if we can resolve it 
into something known
                     String resolved = 
resolveWithCatalogs(OASISCatalogManager.getCatalogManager(bus), key, base);
-                    if (resolved != null  && 
smp.containsKey(URLDecoder.decode(resolved, "utf-8"))) {
+                    if (resolved != null  && 
smp.containsKey(URLDecoder.decode(resolved, StandardCharsets.UTF_8))) {
                         // if it is resolvable, we can use it
                         return base + "?xsd=" + key.replace(" ", "%20");
                     }
@@ -190,20 +191,20 @@ public class WSDLGetUtils {
         } catch (URISyntaxException e) {
            //ignore
         }
-        SchemaReference ref = smp.get(URLDecoder.decode(key, "utf-8"));
+        SchemaReference ref = smp.get(URLDecoder.decode(key, 
StandardCharsets.UTF_8));
         if (ref == null && resolvedXsd != null) {
             try {
                 String key2 = new URI(resolvedXsd).resolve(loc).toString();
-                SchemaReference ref2 = smp.get(URLDecoder.decode(key2, 
"utf-8"));
+                SchemaReference ref2 = smp.get(URLDecoder.decode(key2, 
StandardCharsets.UTF_8));
                 if (ref2 == null) {
                     // if the result is not known, check if we can resolve it 
into something known
                     String resolved = 
resolveWithCatalogs(OASISCatalogManager.getCatalogManager(bus), key2, base);
-                    if (resolved != null  && 
smp.containsKey(URLDecoder.decode(resolved, "utf-8"))) {
+                    if (resolved != null  && 
smp.containsKey(URLDecoder.decode(resolved, StandardCharsets.UTF_8))) {
                         // if it is resolvable, we can use it
-                        ref = smp.get(URLDecoder.decode(resolved, "utf-8"));
+                        ref = smp.get(URLDecoder.decode(resolved, 
StandardCharsets.UTF_8));
                     }
                 } else {
-                    ref = smp.get(URLDecoder.decode(key2, "utf-8"));
+                    ref = smp.get(URLDecoder.decode(key2, 
StandardCharsets.UTF_8));
                 }
             } catch (URISyntaxException e) {
                 //ignore, ref can remain null
@@ -285,7 +286,7 @@ public class WSDLGetUtils {
                 } catch (URISyntaxException e) {
                     //ignore
                 }
-                if (mp.containsKey(URLDecoder.decode(sl, "utf-8"))) {
+                if (mp.containsKey(URLDecoder.decode(sl, 
StandardCharsets.UTF_8))) {
                     el.setAttribute("location", base + "?wsdl=" + sl.replace(" 
", "%20"));
                 }
             }
@@ -396,19 +397,9 @@ public class WSDLGetUtils {
             List<Import> impLst = CastUtils.cast(lst);
             for (Import imp : impLst) {
                 String start = imp.getLocationURI();
-                String decodedStart;
                 // Always use the URL decoded version to ensure that we have a
                 // canonical representation of the import URL for lookup.
-
-                try {
-                    decodedStart = URLDecoder.decode(start, "utf-8");
-                } catch (UnsupportedEncodingException e) {
-                    throw new WSDLQueryException(
-                        new 
org.apache.cxf.common.i18n.Message("COULD_NOT_PROVIDE_WSDL",
-                            LOG,
-                            start), e);
-                }
-
+                String decodedStart = URLDecoder.decode(start, 
StandardCharsets.UTF_8);
                 String resolvedSchemaLocation = resolveWithCatalogs(catalogs, 
start, base);
 
                 if (resolvedSchemaLocation == null) {
@@ -418,7 +409,7 @@ public class WSDLGetUtils {
                     } catch (MalformedURLException e) {
                         try {
                             start = getLocationURI(start, docBase);
-                            decodedStart = URLDecoder.decode(start, "utf-8");
+                            decodedStart = URLDecoder.decode(start, 
StandardCharsets.UTF_8);
                         } catch (Exception e1) {
                             //ignore
                         }
@@ -538,19 +529,10 @@ public class WSDLGetUtils {
         String origLocation = schemaReference.getSchemaLocationURI();
 
         if (start != null) {
-            String decodedStart;
-            String decodedOrigLocation;
             // Always use the URL decoded version to ensure that we have a
             // canonical representation of the import URL for lookup.
-            try {
-                decodedStart = URLDecoder.decode(start, "utf-8");
-                decodedOrigLocation = URLDecoder.decode(origLocation, "utf-8");
-            } catch (UnsupportedEncodingException e) {
-                throw new WSDLQueryException(
-                        new 
org.apache.cxf.common.i18n.Message("COULD_NOT_PROVIDE_WSDL",
-                                LOG,
-                                start), e);
-            }
+            String decodedStart = URLDecoder.decode(start, 
StandardCharsets.UTF_8);
+            String decodedOrigLocation = URLDecoder.decode(origLocation, 
StandardCharsets.UTF_8);
 
             final SchemaReference doneSchema = doneSchemas.get(decodedStart);
             if (doneSchema == null || 
!doneSchema.getSchemaLocationURI().equals(
diff --git 
a/rt/javascript/javascript-tests/src/test/java/org/apache/cxf/javascript/JsXMLHttpRequest.java
 
b/rt/javascript/javascript-tests/src/test/java/org/apache/cxf/javascript/JsXMLHttpRequest.java
index d414189387d..7041f6fe1ab 100644
--- 
a/rt/javascript/javascript-tests/src/test/java/org/apache/cxf/javascript/JsXMLHttpRequest.java
+++ 
b/rt/javascript/javascript-tests/src/test/java/org/apache/cxf/javascript/JsXMLHttpRequest.java
@@ -325,16 +325,14 @@ public class JsXMLHttpRequest extends ScriptableObject {
         notifyReadyStateChangeListener();
 
         if (storedAsync) {
-            new Thread() {
-                public void run() {
-                    try {
-                        Context cx = ContextFactory.getGlobal().enterContext();
-                        communicate(cx);
-                    } finally {
-                        Context.exit();
-                    }
+            new Thread(() -> {
+                try {
+                    Context cx = ContextFactory.getGlobal().enterContext();
+                    communicate(cx);
+                } finally {
+                    Context.exit();
                 }
-            } .start();
+            }).start();
         } else {
             communicate(Context.getCurrentContext());
         }
diff --git 
a/rt/javascript/javascript-tests/src/test/java/org/apache/cxf/javascript/fortest/MtoMImpl.java
 
b/rt/javascript/javascript-tests/src/test/java/org/apache/cxf/javascript/fortest/MtoMImpl.java
index 9f74b2972cb..3c3c4f1a562 100644
--- 
a/rt/javascript/javascript-tests/src/test/java/org/apache/cxf/javascript/fortest/MtoMImpl.java
+++ 
b/rt/javascript/javascript-tests/src/test/java/org/apache/cxf/javascript/fortest/MtoMImpl.java
@@ -23,6 +23,7 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.StringWriter;
+import java.nio.charset.StandardCharsets;
 
 import javax.activation.DataHandler;
 import javax.jws.WebService;
@@ -46,7 +47,7 @@ public class MtoMImpl implements MtoM {
         InputStream someData =
             
getClass().getClassLoader().getResourceAsStream("org/apache/cxf/javascript/cxf-utils.js");
         try (StringWriter sw = new StringWriter()) {
-            InputStreamReader isr = new InputStreamReader(someData, "utf-8");
+            InputStreamReader isr = new InputStreamReader(someData, 
StandardCharsets.UTF_8);
             IOUtils.copy(isr, sw, 4096);
             returnData = sw.toString();
         } catch (IOException e) {
diff --git 
a/rt/javascript/javascript-tests/src/test/java/org/apache/cxf/javascript/fortest/MtoMParameterBeanNoDataHandler.java
 
b/rt/javascript/javascript-tests/src/test/java/org/apache/cxf/javascript/fortest/MtoMParameterBeanNoDataHandler.java
index 5787c5f00a0..077ae2ad29f 100644
--- 
a/rt/javascript/javascript-tests/src/test/java/org/apache/cxf/javascript/fortest/MtoMParameterBeanNoDataHandler.java
+++ 
b/rt/javascript/javascript-tests/src/test/java/org/apache/cxf/javascript/fortest/MtoMParameterBeanNoDataHandler.java
@@ -19,7 +19,7 @@
 
 package org.apache.cxf.javascript.fortest;
 
-import java.io.UnsupportedEncodingException;
+import java.nio.charset.StandardCharsets;
 
 import javax.xml.bind.annotation.XmlMimeType;
 import javax.xml.bind.annotation.XmlType;
@@ -40,15 +40,11 @@ public class MtoMParameterBeanNoDataHandler {
     }
 
     @XmlMimeType("text/plain;charset=utf-8")
-    public byte[] getNotXml10() throws UnsupportedEncodingException {
-        return notXml10.getBytes("utf-8");
+    public byte[] getNotXml10() {
+        return notXml10.getBytes(StandardCharsets.UTF_8);
     }
     public void setNotXml10(byte[] notXml10) {
-        try {
-            this.notXml10 = new String(notXml10, "utf-8");
-        } catch (UnsupportedEncodingException e) {
-            e.printStackTrace();
-        }
+        this.notXml10 = new String(notXml10, StandardCharsets.UTF_8);
     }
     public void setNotXml10(String notXml10) {
         this.notXml10 = notXml10;
diff --git 
a/rt/rs/client/src/main/java/org/apache/cxf/jaxrs/client/ThreadLocalClientState.java
 
b/rt/rs/client/src/main/java/org/apache/cxf/jaxrs/client/ThreadLocalClientState.java
index 77b1b7e5ecf..56372d1684a 100644
--- 
a/rt/rs/client/src/main/java/org/apache/cxf/jaxrs/client/ThreadLocalClientState.java
+++ 
b/rt/rs/client/src/main/java/org/apache/cxf/jaxrs/client/ThreadLocalClientState.java
@@ -161,6 +161,7 @@ public class ThreadLocalClientState implements ClientState {
         }
     }
 
+    @SuppressWarnings("PMD.OverridingThreadRun")
     private class CleanupThread extends Thread {
         private Thread thread;
         private long originalTime;
diff --git 
a/rt/rs/extensions/providers/src/test/java/org/apache/cxf/jaxrs/provider/aegis/AegisElementProviderTest.java
 
b/rt/rs/extensions/providers/src/test/java/org/apache/cxf/jaxrs/provider/aegis/AegisElementProviderTest.java
index 6a2381a62bd..33340adc39c 100644
--- 
a/rt/rs/extensions/providers/src/test/java/org/apache/cxf/jaxrs/provider/aegis/AegisElementProviderTest.java
+++ 
b/rt/rs/extensions/providers/src/test/java/org/apache/cxf/jaxrs/provider/aegis/AegisElementProviderTest.java
@@ -25,6 +25,7 @@ import java.io.IOException;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Method;
 import java.lang.reflect.Type;
+import java.nio.charset.StandardCharsets;
 import java.util.HashMap;
 import java.util.InvalidPropertiesFormatException;
 import java.util.Map;
@@ -79,7 +80,7 @@ public class AegisElementProviderTest {
     @Test
     public void testReadFrom() throws Exception {
         MessageBodyReader<AegisTestBean> p = new AegisElementProvider<>();
-        byte[] simpleBytes = simpleBeanXml.getBytes("utf-8");
+        byte[] simpleBytes = simpleBeanXml.getBytes(StandardCharsets.UTF_8);
         AegisTestBean bean = p.readFrom(AegisTestBean.class, null, null,
                                           null, null, new 
ByteArrayInputStream(simpleBytes));
         assertEquals("hovercraft", bean.getStrValue());
@@ -90,7 +91,7 @@ public class AegisElementProviderTest {
     @Test
     public void testNoNamespaceReadFrom() throws Exception {
         MessageBodyReader<AegisTestBean> p = new 
NoNamespaceAegisElementProvider<>();
-        byte[] bytes = noNamespaceXml.getBytes("utf-8");
+        byte[] bytes = noNamespaceXml.getBytes(StandardCharsets.UTF_8);
         AegisTestBean bean = p.readFrom(AegisTestBean.class, null, null,
                                           null, null, new 
ByteArrayInputStream(bytes));
         assertEquals("hovercraft", bean.getStrValue());
@@ -108,7 +109,7 @@ public class AegisElementProviderTest {
                   MediaType.APPLICATION_OCTET_STREAM_TYPE,
                   new MetadataMap<String, Object>(), os);
         byte[] bytes = os.toByteArray();
-        String xml = new String(bytes, "utf-8");
+        String xml = new String(bytes, StandardCharsets.UTF_8);
         assertEquals(simpleBeanXml, xml);
     }
 
@@ -123,7 +124,7 @@ public class AegisElementProviderTest {
                   MediaType.APPLICATION_OCTET_STREAM_TYPE,
                   new MetadataMap<String, Object>(), os);
         byte[] bytes = os.toByteArray();
-        String xml = new String(bytes, "utf-8");
+        String xml = new String(bytes, StandardCharsets.UTF_8);
         assertEquals(noNamespaceXml, xml);
     }
 
@@ -152,10 +153,10 @@ public class AegisElementProviderTest {
                        MediaType.APPLICATION_OCTET_STREAM_TYPE,
                        new MetadataMap<String, Object>(), os);
         byte[] bytes = os.toByteArray();
-        String xml = new String(bytes, "utf-8");
+        String xml = new String(bytes, StandardCharsets.UTF_8);
         MessageBodyReader<Map<AegisTestBean, AegisSuperBean>> reader
             = new AegisElementProvider<>();
-        byte[] simpleBytes = xml.getBytes("utf-8");
+        byte[] simpleBytes = xml.getBytes(StandardCharsets.UTF_8);
 
         Map<AegisTestBean, AegisSuperBean> map2 = reader.readFrom(null, 
mapType, new Annotation[]{},
                                                                   
MediaType.APPLICATION_OCTET_STREAM_TYPE,
diff --git 
a/rt/transports/http-hc/src/main/java/org/apache/cxf/transport/http/asyncclient/AsyncHTTPConduitFactory.java
 
b/rt/transports/http-hc/src/main/java/org/apache/cxf/transport/http/asyncclient/AsyncHTTPConduitFactory.java
index 9b0c928f29e..9c87c8475dd 100644
--- 
a/rt/transports/http-hc/src/main/java/org/apache/cxf/transport/http/asyncclient/AsyncHTTPConduitFactory.java
+++ 
b/rt/transports/http-hc/src/main/java/org/apache/cxf/transport/http/asyncclient/AsyncHTTPConduitFactory.java
@@ -389,6 +389,7 @@ public class AsyncHTTPConduitFactory implements 
HTTPConduitFactory {
         return client;
     }
 
+    @SuppressWarnings("PMD.OverridingThreadRun")
     public class CloseIdleConnectionThread extends Thread {
 
         private final PoolingNHttpClientConnectionManager connMgr;
diff --git 
a/rt/transports/http-hc5/src/main/java/org/apache/cxf/transport/http/asyncclient/hc5/AsyncHTTPConduitFactory.java
 
b/rt/transports/http-hc5/src/main/java/org/apache/cxf/transport/http/asyncclient/hc5/AsyncHTTPConduitFactory.java
index f23cdfec8b9..50e1c69c936 100644
--- 
a/rt/transports/http-hc5/src/main/java/org/apache/cxf/transport/http/asyncclient/hc5/AsyncHTTPConduitFactory.java
+++ 
b/rt/transports/http-hc5/src/main/java/org/apache/cxf/transport/http/asyncclient/hc5/AsyncHTTPConduitFactory.java
@@ -420,6 +420,7 @@ public class AsyncHTTPConduitFactory implements 
HTTPConduitFactory {
         return maxConnections;
     }
 
+    @SuppressWarnings("PMD.OverridingThreadRun")
     public class CloseIdleConnectionThread extends Thread {
         private final PoolingAsyncClientConnectionManager connMgr;
         private final CloseableHttpAsyncClient client;
diff --git 
a/rt/transports/http/src/main/java/org/apache/cxf/transport/http/DestinationRegistryImpl.java
 
b/rt/transports/http/src/main/java/org/apache/cxf/transport/http/DestinationRegistryImpl.java
index 837e0a9f037..0a9c8efa620 100644
--- 
a/rt/transports/http/src/main/java/org/apache/cxf/transport/http/DestinationRegistryImpl.java
+++ 
b/rt/transports/http/src/main/java/org/apache/cxf/transport/http/DestinationRegistryImpl.java
@@ -18,8 +18,8 @@
  */
 package org.apache.cxf.transport.http;
 
-import java.io.UnsupportedEncodingException;
 import java.net.URLDecoder;
+import java.nio.charset.StandardCharsets;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Comparator;
@@ -53,25 +53,17 @@ public class DestinationRegistryImpl implements 
DestinationRegistry, ServletConf
         if (dest != null && dest != destination) {
             throw new RuntimeException("Already a destination on " + path);
         }
-        try {
-            String path2 = URLDecoder.decode(path, "UTF-8");
-            if (!path.equals(path2)) {
-                decodedDestinations.put(path2, destination);
-            }
-        } catch (UnsupportedEncodingException e) {
-            throw new RuntimeException("Unsupported Encoding", e);
+        String path2 = URLDecoder.decode(path, StandardCharsets.UTF_8);
+        if (!path.equals(path2)) {
+            decodedDestinations.put(path2, destination);
         }
     }
 
     public synchronized void removeDestination(String path) {
         destinations.remove(path);
-        try {
-            String path2 = URLDecoder.decode(path, "UTF-8");
-            if (!path.equals(path2)) {
-                decodedDestinations.remove(path2);
-            }
-        } catch (UnsupportedEncodingException e) {
-            throw new RuntimeException("Unsupported Encoding", e);
+        String path2 = URLDecoder.decode(path, StandardCharsets.UTF_8);
+        if (!path.equals(path2)) {
+            decodedDestinations.remove(path2);
         }
     }
 
diff --git 
a/rt/transports/websocket/src/main/java/org/apache/cxf/transport/websocket/WebSocketUtils.java
 
b/rt/transports/websocket/src/main/java/org/apache/cxf/transport/websocket/WebSocketUtils.java
index ef7459362a6..53f2c1e0f3a 100644
--- 
a/rt/transports/websocket/src/main/java/org/apache/cxf/transport/websocket/WebSocketUtils.java
+++ 
b/rt/transports/websocket/src/main/java/org/apache/cxf/transport/websocket/WebSocketUtils.java
@@ -22,6 +22,7 @@ package org.apache.cxf.transport.websocket;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.TreeMap;
@@ -250,7 +251,7 @@ public final class WebSocketUtils {
 
         public ByteArrayBuilder append(String s) {
             try {
-                baos.write(s.getBytes("utf-8"));
+                baos.write(s.getBytes(StandardCharsets.UTF_8));
             } catch (IOException e) {
                 // ignore
             }
diff --git 
a/rt/transports/websocket/src/main/java/org/apache/cxf/transport/websocket/jetty10/Jetty10WebSocketDestination.java
 
b/rt/transports/websocket/src/main/java/org/apache/cxf/transport/websocket/jetty10/Jetty10WebSocketDestination.java
index cf74906498f..e4a8de337c1 100644
--- 
a/rt/transports/websocket/src/main/java/org/apache/cxf/transport/websocket/jetty10/Jetty10WebSocketDestination.java
+++ 
b/rt/transports/websocket/src/main/java/org/apache/cxf/transport/websocket/jetty10/Jetty10WebSocketDestination.java
@@ -341,6 +341,4 @@ public class Jetty10WebSocketDestination extends 
JettyHTTPDestination implements
             }
         }
     }
-
-
 }
diff --git 
a/rt/wsdl/src/main/java/org/apache/cxf/wsdl/service/factory/ClassReader.java 
b/rt/wsdl/src/main/java/org/apache/cxf/wsdl/service/factory/ClassReader.java
index 7c0066429eb..3798ee17f63 100644
--- a/rt/wsdl/src/main/java/org/apache/cxf/wsdl/service/factory/ClassReader.java
+++ b/rt/wsdl/src/main/java/org/apache/cxf/wsdl/service/factory/ClassReader.java
@@ -29,6 +29,7 @@ import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Member;
 import java.lang.reflect.Method;
+import java.nio.charset.StandardCharsets;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -299,8 +300,8 @@ class ClassReader extends ByteArrayInputStream {
                 pos = cpoolIndex[i];
                 int len = readShort();
                 skipFully(len);
-                cpool[i] = new String(buf, pos - len, len, "utf-8");
-                s = new String(buf, pos - len, len, "utf-8");
+                cpool[i] = new String(buf, pos - len, len, 
StandardCharsets.UTF_8);
+                s = new String(buf, pos - len, len, StandardCharsets.UTF_8);
             }
             return s;
         } finally {
diff --git 
a/rt/wsdl/src/test/java/org/apache/cxf/wsdl11/WSDLServiceBuilderTest.java 
b/rt/wsdl/src/test/java/org/apache/cxf/wsdl11/WSDLServiceBuilderTest.java
index 0a033d394ee..4c09197fe89 100644
--- a/rt/wsdl/src/test/java/org/apache/cxf/wsdl11/WSDLServiceBuilderTest.java
+++ b/rt/wsdl/src/test/java/org/apache/cxf/wsdl11/WSDLServiceBuilderTest.java
@@ -25,6 +25,7 @@ import java.net.URI;
 import java.net.URL;
 import java.net.URLDecoder;
 import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
 import java.util.Collection;
 import java.util.List;
 import java.util.logging.Logger;
@@ -473,10 +474,10 @@ public class WSDLServiceBuilderTest {
         }
         String filePath = 
this.getClass().getResource("./s1/s2/s4/schema4.xsd").toURI().getPath();
         String importPath = 
schemaImport.getAttributeNode("schemaLocation").getValue();
-        if (!new URI(URLEncoder.encode(importPath, "utf-8")).isAbsolute()) {
+        if (!new URI(URLEncoder.encode(importPath, 
StandardCharsets.UTF_8)).isAbsolute()) {
             
schemaImport.getAttributeNode("schemaLocation").setNodeValue("file:" + 
filePath);
             String fileStr = 
this.getClass().getResource("./s1/s2/schema2.xsd").toURI().getPath();
-            fileStr = URLDecoder.decode(fileStr, "utf-8");
+            fileStr = URLDecoder.decode(fileStr, StandardCharsets.UTF_8);
             File file = new File(fileStr);
             if (file.exists()) {
                 file.delete();
diff --git 
a/services/wsn/wsn-core/src/main/java/org/apache/cxf/wsn/jms/JmsSubscription.java
 
b/services/wsn/wsn-core/src/main/java/org/apache/cxf/wsn/jms/JmsSubscription.java
index 12cd7d7db25..78a1a498fab 100644
--- 
a/services/wsn/wsn-core/src/main/java/org/apache/cxf/wsn/jms/JmsSubscription.java
+++ 
b/services/wsn/wsn-core/src/main/java/org/apache/cxf/wsn/jms/JmsSubscription.java
@@ -266,6 +266,7 @@ public abstract class JmsSubscription extends 
AbstractSubscription implements Me
 
     protected abstract void doNotify(Notify notify);
 
+    @SuppressWarnings("PMD.OverridingThreadRun")
     class TerminationThread extends Thread {
         public void run() {
             while (checkTermination) {
diff --git 
a/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/BookServerAsyncClient.java
 
b/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/BookServerAsyncClient.java
index 8ab84a0940d..098157b9158 100644
--- 
a/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/BookServerAsyncClient.java
+++ 
b/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/BookServerAsyncClient.java
@@ -24,6 +24,7 @@ import java.io.InputStream;
 import java.io.OutputStream;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Type;
+import java.nio.charset.StandardCharsets;
 
 import javax.ws.rs.Consumes;
 import javax.ws.rs.Produces;
@@ -92,7 +93,7 @@ public class BookServerAsyncClient extends 
AbstractServerTestServerBase {
         public void writeTo(Boolean t, Class<?> type, Type genericType, 
Annotation[] annotations,
                             MediaType mediaType, MultivaluedMap<String, 
Object> httpHeaders,
                             OutputStream os) throws IOException, 
WebApplicationException {
-            byte[] bytes = t.toString().getBytes("UTF-8");
+            byte[] bytes = t.toString().getBytes(StandardCharsets.UTF_8);
             os.write(bytes);
 
         }
diff --git 
a/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/BookStoreSpring.java
 
b/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/BookStoreSpring.java
index 4caa39e88fd..f63150aa25f 100644
--- 
a/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/BookStoreSpring.java
+++ 
b/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/BookStoreSpring.java
@@ -24,6 +24,7 @@ import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.URI;
+import java.nio.charset.StandardCharsets;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
@@ -269,8 +270,8 @@ public class BookStoreSpring {
     public Book getBookISO() throws Exception {
         String eWithAcute = "\u00E9";
         String helloStringUTF16 = "F" + eWithAcute + "lix";
-        byte[] iso88591bytes = helloStringUTF16.getBytes("ISO-8859-1");
-        String helloStringISO88591 = new String(iso88591bytes, "ISO-8859-1");
+        byte[] iso88591bytes = 
helloStringUTF16.getBytes(StandardCharsets.ISO_8859_1);
+        String helloStringISO88591 = new String(iso88591bytes, 
StandardCharsets.ISO_8859_1);
         return new Book(helloStringISO88591, 333L);
     }
 
diff --git 
a/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/JAXRSClientServerSpringBookTest.java
 
b/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/JAXRSClientServerSpringBookTest.java
index a1d2cc28b37..a945bbb6e31 100644
--- 
a/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/JAXRSClientServerSpringBookTest.java
+++ 
b/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/JAXRSClientServerSpringBookTest.java
@@ -345,7 +345,7 @@ public class JAXRSClientServerSpringBookTest extends 
AbstractBusClientServerTest
         WebClient wc = WebClient.create(address);
         wc.accept("application/json" + (charset == null ? "" : 
";charset=ISO-8859-1"));
         byte[] iso88591bytes = wc.get(byte[].class);
-        String helloStringISO88591 = new String(iso88591bytes, "ISO-8859-1");
+        String helloStringISO88591 = new String(iso88591bytes, 
StandardCharsets.ISO_8859_1);
 
         String name = helloStringISO88591.substring(
             helloStringISO88591.indexOf("\"name\":\"") + 
"\"name\":\"".length(),
@@ -359,7 +359,7 @@ public class JAXRSClientServerSpringBookTest extends 
AbstractBusClientServerTest
         
WebClient.getConfig(wc).getHttpConduit().getClient().setReceiveTimeout(10000000L);
         wc.accept("application/xml" + (charset == null ? "" : 
";charset=ISO-8859-1"));
         byte[] iso88591bytes = wc.get(byte[].class);
-        String helloStringISO88591 = new String(iso88591bytes, "ISO-8859-1");
+        String helloStringISO88591 = new String(iso88591bytes, 
StandardCharsets.ISO_8859_1);
 
         String name = helloStringISO88591.substring(
             helloStringISO88591.indexOf("<name>") + "<name>".length(),
@@ -371,7 +371,7 @@ public class JAXRSClientServerSpringBookTest extends 
AbstractBusClientServerTest
     private void compareNames(String name) throws Exception  {
         String eWithAcute = "\u00E9";
         String nameUTF16 = "F" + eWithAcute + "lix";
-        String nameExpected = new String(nameUTF16.getBytes("ISO-8859-1"), 
"ISO-8859-1");
+        String nameExpected = new 
String(nameUTF16.getBytes(StandardCharsets.ISO_8859_1), 
StandardCharsets.ISO_8859_1);
         assertEquals(nameExpected, name);
     }
 
diff --git 
a/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/reactive/AbstractCompletableFutureServer.java
 
b/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/reactive/AbstractCompletableFutureServer.java
index e590842e336..af4df9e0363 100644
--- 
a/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/reactive/AbstractCompletableFutureServer.java
+++ 
b/systests/jaxrs/src/test/java/org/apache/cxf/systest/jaxrs/reactive/AbstractCompletableFutureServer.java
@@ -24,6 +24,7 @@ import java.io.InputStream;
 import java.io.OutputStream;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Type;
+import java.nio.charset.StandardCharsets;
 
 import javax.ws.rs.Consumes;
 import javax.ws.rs.Produces;
@@ -89,7 +90,7 @@ public abstract class AbstractCompletableFutureServer extends 
AbstractServerTest
         public void writeTo(Boolean t, Class<?> type, Type genericType, 
Annotation[] annotations,
                             MediaType mediaType, MultivaluedMap<String, 
Object> httpHeaders,
                             OutputStream os) throws IOException, 
WebApplicationException {
-            byte[] bytes = t.toString().getBytes("UTF-8");
+            byte[] bytes = t.toString().getBytes(StandardCharsets.UTF_8);
             os.write(bytes);
 
         }
diff --git 
a/systests/jaxws/src/test/java/org/apache/cxf/systest/jaxws/JAXWSServer.java 
b/systests/jaxws/src/test/java/org/apache/cxf/systest/jaxws/JAXWSServer.java
index 9693fb2507d..62a9de3de2e 100644
--- a/systests/jaxws/src/test/java/org/apache/cxf/systest/jaxws/JAXWSServer.java
+++ b/systests/jaxws/src/test/java/org/apache/cxf/systest/jaxws/JAXWSServer.java
@@ -136,19 +136,17 @@ public class JAXWSServer extends 
AbstractBusTestServerBase {
         public Future<?> greetMeAsync(final String requestType,
                                       final AsyncHandler<GreetMeResponse> 
asyncHandler) {
             final ServerAsyncResponse<GreetMeResponse> r = new 
ServerAsyncResponse<>();
-            new Thread() {
-                public void run() {
-                    try {
-                        Thread.sleep(500);
-                    } catch (InterruptedException e) {
-                        //ignore
-                    }
-                    GreetMeResponse resp = new GreetMeResponse();
-                    resp.setResponseType("Hello " + requestType);
-                    r.set(resp);
-                    asyncHandler.handleResponse(r);
+            new Thread(() -> {
+                try {
+                    Thread.sleep(500);
+                } catch (InterruptedException e) {
+                    //ignore
                 }
-            } .start();
+                GreetMeResponse resp = new GreetMeResponse();
+                resp.setResponseType("Hello " + requestType);
+                r.set(resp);
+                asyncHandler.handleResponse(r);
+            }).start();
             return r;
         }
     }
@@ -165,17 +163,15 @@ public class JAXWSServer extends 
AbstractBusTestServerBase {
 
         public Future<?> invokeAsync(final StreamSource s, final 
AsyncHandler<Source> asyncHandler) {
             final ServerAsyncResponse<Source> r = new ServerAsyncResponse<>();
-            new Thread() {
-                public void run() {
-                    try {
-                        Thread.sleep(500);
-                    } catch (InterruptedException e) {
-                        // ignore
-                    }
-                    r.set(s);
-                    asyncHandler.handleResponse(r);
+            new Thread(() -> {
+                try {
+                    Thread.sleep(500);
+                } catch (InterruptedException e) {
+                    // ignore
                 }
-            } .start();
+                r.set(s);
+                asyncHandler.handleResponse(r);
+            }).start();
             return r;
         }
     }
diff --git 
a/systests/rs-sse/rs-sse-base/src/main/java/org/apache/cxf/systest/jaxrs/sse/BookStore.java
 
b/systests/rs-sse/rs-sse-base/src/main/java/org/apache/cxf/systest/jaxrs/sse/BookStore.java
index 71c1b28b8b1..15784b70aee 100644
--- 
a/systests/rs-sse/rs-sse-base/src/main/java/org/apache/cxf/systest/jaxrs/sse/BookStore.java
+++ 
b/systests/rs-sse/rs-sse-base/src/main/java/org/apache/cxf/systest/jaxrs/sse/BookStore.java
@@ -74,26 +74,24 @@ public class BookStore extends BookStoreClientCloseable {
     public void forBook(@Context SseEventSink sink, @PathParam("id") final 
String id,
             @HeaderParam(HttpHeaders.LAST_EVENT_ID_HEADER) @DefaultValue("0") 
final String lastEventId) {
 
-        new Thread() {
-            public void run() {
-                try {
-                    final Integer id = Integer.valueOf(lastEventId);
-                    final OutboundSseEvent.Builder builder = 
sse.newEventBuilder();
-
-                    sink.send(createEvent(builder.name("book"), id + 1));
-                    Thread.sleep(200);
-                    sink.send(createEvent(builder.name("book"), id + 2));
-                    Thread.sleep(200);
-                    sink.send(createEvent(builder.name("book"), id + 3));
-                    Thread.sleep(200);
-                    sink.send(createEvent(builder.name("book"), id + 4));
-                    Thread.sleep(200);
-                    sink.close();
-                } catch (final InterruptedException ex) {
-                    LOG.error("Communication error", ex);
-                }
+        new Thread(() -> {
+            try {
+                final Integer lastId = Integer.valueOf(lastEventId);
+                final OutboundSseEvent.Builder builder = sse.newEventBuilder();
+
+                sink.send(createEvent(builder.name("book"), lastId + 1));
+                Thread.sleep(200);
+                sink.send(createEvent(builder.name("book"), lastId + 2));
+                Thread.sleep(200);
+                sink.send(createEvent(builder.name("book"), lastId + 3));
+                Thread.sleep(200);
+                sink.send(createEvent(builder.name("book"), lastId + 4));
+                Thread.sleep(200);
+                sink.close();
+            } catch (final InterruptedException ex) {
+                LOG.error("Communication error", ex);
             }
-        }.start();
+        }).start();
     }
     
     @POST
@@ -102,26 +100,24 @@ public class BookStore extends BookStoreClientCloseable {
     @Consumes(MediaType.TEXT_PLAIN)
     public void forBookPOST(@Context SseEventSink sink, @PathParam("id") final 
String id,
             final String lastEventId) {
-        new Thread() {
-            public void run() {
-                try {
-                    final Integer id = Integer.valueOf(lastEventId);
-                    final OutboundSseEvent.Builder builder = 
sse.newEventBuilder();
-
-                    sink.send(createEvent(builder.name("book"), id + 1));
-                    Thread.sleep(200);
-                    sink.send(createEvent(builder.name("book"), id + 2));
-                    Thread.sleep(200);
-                    sink.send(createEvent(builder.name("book"), id + 3));
-                    Thread.sleep(200);
-                    sink.send(createEvent(builder.name("book"), id + 4));
-                    Thread.sleep(200);
-                    sink.close();
-                } catch (final InterruptedException ex) {
-                    LOG.error("Communication error", ex);
-                }
+        new Thread(() -> {
+            try {
+                final Integer lastId = Integer.valueOf(lastEventId);
+                final OutboundSseEvent.Builder builder = sse.newEventBuilder();
+
+                sink.send(createEvent(builder.name("book"), lastId + 1));
+                Thread.sleep(200);
+                sink.send(createEvent(builder.name("book"), lastId + 2));
+                Thread.sleep(200);
+                sink.send(createEvent(builder.name("book"), lastId + 3));
+                Thread.sleep(200);
+                sink.send(createEvent(builder.name("book"), lastId + 4));
+                Thread.sleep(200);
+                sink.close();
+            } catch (final InterruptedException ex) {
+                LOG.error("Communication error", ex);
             }
-        }.start();
+        }).start();
     }
     
     @GET
@@ -202,32 +198,28 @@ public class BookStore extends BookStoreClientCloseable {
     @Path("/filtered/sse")
     @Produces(MediaType.SERVER_SENT_EVENTS)
     public void filtered(@Context SseEventSink sink) {
-        new Thread() {
-            public void run() {
-                try {
-                    Thread.sleep(200);
-                    sink.close();
-                } catch (final InterruptedException ex) {
-                    LOG.error("Communication error", ex);
-                }
+        new Thread(() -> {
+            try {
+                Thread.sleep(200);
+                sink.close();
+            } catch (final InterruptedException ex) {
+                LOG.error("Communication error", ex);
             }
-        }.start();
+        }).start();
     }
 
     @GET
     @Path("/headers/sse")
     @Produces(MediaType.SERVER_SENT_EVENTS)
     public void headers(@Context SseEventSink sink) {
-        new Thread() {
-            public void run() {
-                try {
-                    Thread.sleep(200);
-                    sink.close();
-                } catch (final InterruptedException ex) {
-                    LOG.error("Communication error", ex);
-                }
+        new Thread(() -> {
+            try {
+                Thread.sleep(200);
+                sink.close();
+            } catch (final InterruptedException ex) {
+                LOG.error("Communication error", ex);
             }
-        }.start();
+        }).start();
     }
 
     @GET
diff --git 
a/systests/rs-sse/rs-sse-base/src/main/java/org/apache/cxf/systest/jaxrs/sse/BookStore2.java
 
b/systests/rs-sse/rs-sse-base/src/main/java/org/apache/cxf/systest/jaxrs/sse/BookStore2.java
index 7c870885409..ee30c357cca 100644
--- 
a/systests/rs-sse/rs-sse-base/src/main/java/org/apache/cxf/systest/jaxrs/sse/BookStore2.java
+++ 
b/systests/rs-sse/rs-sse-base/src/main/java/org/apache/cxf/systest/jaxrs/sse/BookStore2.java
@@ -73,26 +73,24 @@ public class BookStore2 extends BookStoreClientCloseable {
     public void forBook(@Context SseEventSink sink, @PathParam("id") final 
String id,
             @HeaderParam(HttpHeaders.LAST_EVENT_ID_HEADER) @DefaultValue("0") 
final String lastEventId) {
 
-        new Thread() {
-            public void run() {
-                try {
-                    final Integer id = Integer.valueOf(lastEventId);
-                    final OutboundSseEvent.Builder builder = 
sse.newEventBuilder();
-
-                    sink.send(createEvent(builder.name("book"), id + 1));
-                    Thread.sleep(200);
-                    sink.send(createEvent(builder.name("book"), id + 2));
-                    Thread.sleep(200);
-                    sink.send(createEvent(builder.name("book"), id + 3));
-                    Thread.sleep(200);
-                    sink.send(createEvent(builder.name("book"), id + 4));
-                    Thread.sleep(200);
-                    sink.close();
-                } catch (final InterruptedException ex) {
-                    LOG.error("Communication error", ex);
-                }
+        new Thread(() -> {
+            try {
+                final Integer lastId = Integer.valueOf(lastEventId);
+                final OutboundSseEvent.Builder builder = sse.newEventBuilder();
+
+                sink.send(createEvent(builder.name("book"), lastId + 1));
+                Thread.sleep(200);
+                sink.send(createEvent(builder.name("book"), lastId + 2));
+                Thread.sleep(200);
+                sink.send(createEvent(builder.name("book"), lastId + 3));
+                Thread.sleep(200);
+                sink.send(createEvent(builder.name("book"), lastId + 4));
+                Thread.sleep(200);
+                sink.close();
+            } catch (final InterruptedException ex) {
+                LOG.error("Communication error", ex);
             }
-        }.start();
+        }).start();
     }
     
     @POST
@@ -101,26 +99,24 @@ public class BookStore2 extends BookStoreClientCloseable {
     @Consumes(MediaType.TEXT_PLAIN)
     public void forBookPOST(@Context SseEventSink sink, @PathParam("id") final 
String id,
             final String lastEventId) {
-        new Thread() {
-            public void run() {
-                try {
-                    final Integer id = Integer.valueOf(lastEventId);
-                    final OutboundSseEvent.Builder builder = 
sse.newEventBuilder();
-
-                    sink.send(createEvent(builder.name("book"), id + 1));
-                    Thread.sleep(200);
-                    sink.send(createEvent(builder.name("book"), id + 2));
-                    Thread.sleep(200);
-                    sink.send(createEvent(builder.name("book"), id + 3));
-                    Thread.sleep(200);
-                    sink.send(createEvent(builder.name("book"), id + 4));
-                    Thread.sleep(200);
-                    sink.close();
-                } catch (final InterruptedException ex) {
-                    LOG.error("Communication error", ex);
-                }
+        new Thread(() -> {
+            try {
+                final Integer lastId = Integer.valueOf(lastEventId);
+                final OutboundSseEvent.Builder builder = sse.newEventBuilder();
+
+                sink.send(createEvent(builder.name("book"), lastId + 1));
+                Thread.sleep(200);
+                sink.send(createEvent(builder.name("book"), lastId + 2));
+                Thread.sleep(200);
+                sink.send(createEvent(builder.name("book"), lastId + 3));
+                Thread.sleep(200);
+                sink.send(createEvent(builder.name("book"), lastId + 4));
+                Thread.sleep(200);
+                sink.close();
+            } catch (final InterruptedException ex) {
+                LOG.error("Communication error", ex);
             }
-        }.start();
+        }).start();
     }
     
     @GET
@@ -201,16 +197,14 @@ public class BookStore2 extends BookStoreClientCloseable {
     @Path("/filtered/sse")
     @Produces(MediaType.SERVER_SENT_EVENTS)
     public void filtered(@Context SseEventSink sink) {
-        new Thread() {
-            public void run() {
-                try {
-                    Thread.sleep(200);
-                    sink.close();
-                } catch (final InterruptedException ex) {
-                    LOG.error("Communication error", ex);
-                }
+        new Thread(() -> {
+            try {
+                Thread.sleep(200);
+                sink.close();
+            } catch (final InterruptedException ex) {
+                LOG.error("Communication error", ex);
             }
-        }.start();
+        }).start();
     }
     
     @GET
diff --git 
a/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringClientOnlyJaxrsTest.java
 
b/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringClientOnlyJaxrsTest.java
index 7f7a58554f0..34aa739e5a8 100644
--- 
a/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringClientOnlyJaxrsTest.java
+++ 
b/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringClientOnlyJaxrsTest.java
@@ -63,7 +63,7 @@ import static org.assertj.core.api.Assertions.entry;
 @ExtendWith(SpringExtension.class)
 @SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT, classes = 
SpringClientOnlyJaxrsTest.TestConfig.class)
 @ActiveProfiles("client")
-public class SpringClientOnlyJaxrsTest {
+class SpringClientOnlyJaxrsTest {
 
     @Autowired
     private MeterRegistry registry;
@@ -115,7 +115,7 @@ public class SpringClientOnlyJaxrsTest {
     }
 
     @Test
-    public void testJaxrsClientSuccessMetric() {
+    void testJaxrsClientSuccessMetric() {
         final WebTarget target = createWebTarget();
         
         final Builder builder = 
target.request().header(HttpHeaders.CONTENT_TYPE, "text/plain"); 
@@ -143,7 +143,7 @@ public class SpringClientOnlyJaxrsTest {
     }
     
     @Test
-    public void testJaxrsClientExceptionMetric() {
+    void testJaxrsClientExceptionMetric() {
         final WebTarget target = ClientBuilder
             .newClient()
             .register(new MetricsFeature(metricsProvider))
diff --git 
a/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringJaxrsApplicationTest.java
 
b/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringJaxrsApplicationTest.java
index 65630920975..dd52cea65f8 100644
--- 
a/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringJaxrsApplicationTest.java
+++ 
b/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringJaxrsApplicationTest.java
@@ -72,7 +72,7 @@ import static org.hamcrest.Matchers.empty;
 @ExtendWith(SpringExtension.class)
 @SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT, classes = 
SpringJaxrsApplicationTest.TestConfig.class)
 @ActiveProfiles("jaxrs")
-public class SpringJaxrsApplicationTest {
+class SpringJaxrsApplicationTest {
 
     @Autowired
     private MeterRegistry registry;
@@ -108,7 +108,7 @@ public class SpringJaxrsApplicationTest {
     }
 
     @Test
-    public void testJaxrsSuccessMetric() {
+    void testJaxrsSuccessMetric() {
         final WebTarget target = createWebTarget();
         
         try (Response r = target.request().get()) {
@@ -149,7 +149,7 @@ public class SpringJaxrsApplicationTest {
     }
     
     @Test
-    public void testJaxrsSubresourceSuccessMetric() {
+    void testJaxrsSubresourceSuccessMetric() {
         final WebTarget target = createWebTarget().path("catalog").path("cxf");
         
         try (Response r = target.request().get()) {
@@ -190,7 +190,7 @@ public class SpringJaxrsApplicationTest {
     }
     
     @Test
-    public void testJaxrsFailedMetric() {
+    void testJaxrsFailedMetric() {
         final WebTarget target = createWebTarget();
         
         assertThatThrownBy(() -> target.path("100").request().get(Book.class))
@@ -231,7 +231,7 @@ public class SpringJaxrsApplicationTest {
     }
     
     @Test
-    public void testJaxrsExceptionMetric() {
+    void testJaxrsExceptionMetric() {
         final WebTarget target = createWebTarget();
         
         assertThatThrownBy(() -> target.request().delete(String.class))
@@ -272,7 +272,7 @@ public class SpringJaxrsApplicationTest {
     }
     
     @Test
-    public void testJaxrsClientExceptionMetric() {
+    void testJaxrsClientExceptionMetric() {
         final int fakePort = SocketUtils.findAvailableTcpPort();
         
         final WebTarget target = ClientBuilder
@@ -304,7 +304,7 @@ public class SpringJaxrsApplicationTest {
     }
     
     @Test
-    public void testJaxrsProxySuccessMetric() {
+    void testJaxrsProxySuccessMetric() {
         final LibraryApi api = createApi(port);
         
         try (Response r = api.getBooks(1)) {
@@ -345,7 +345,7 @@ public class SpringJaxrsApplicationTest {
     }
     
     @Test
-    public void testJaxrsProxyExceptionMetric() {
+    void testJaxrsProxyExceptionMetric() {
         final LibraryApi api = createApi(port);
         
         assertThatThrownBy(() -> api.deleteBooks())
@@ -386,7 +386,7 @@ public class SpringJaxrsApplicationTest {
     }
     
     @Test
-    public void testJaxrsProxyFailedMetric() {
+    void testJaxrsProxyFailedMetric() {
         final LibraryApi api = createApi(port);
 
         try (Response r = api.getBook("100")) {
@@ -427,7 +427,7 @@ public class SpringJaxrsApplicationTest {
     }
     
     @Test
-    public void testJaxrsProxyClientExceptionMetric() {
+    void testJaxrsProxyClientExceptionMetric() {
         final int fakePort = SocketUtils.findAvailableTcpPort();
         final LibraryApi api = createApi(fakePort);
 
@@ -455,7 +455,7 @@ public class SpringJaxrsApplicationTest {
     }
     
     @Test
-    public void testJaxrsProxySubresourceSuccessMetric() {
+    void testJaxrsProxySubresourceSuccessMetric() {
         final LibraryApi api = createApi(port);
         
         final Collection<Book> books = api.catalog().getCatalog("cxf");
diff --git 
a/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringJaxrsClassesScanningTest.java
 
b/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringJaxrsClassesScanningTest.java
index 6063fe528a0..0ec69715c52 100644
--- 
a/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringJaxrsClassesScanningTest.java
+++ 
b/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringJaxrsClassesScanningTest.java
@@ -36,7 +36,7 @@ import static org.assertj.core.api.Assertions.assertThat;
 @SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT,
         classes = SpringJaxrsClassesScanningTest.TestConfig.class)
 @ActiveProfiles("jaxrs-classes-scan")
-public class SpringJaxrsClassesScanningTest {
+class SpringJaxrsClassesScanningTest {
     @Autowired
     private AbstractJaxrsClassesScanServer scanner;
 
@@ -45,7 +45,7 @@ public class SpringJaxrsClassesScanningTest {
     }
 
     @Test
-    public void testCxfClassesScan() {
+    void testCxfClassesScan() {
         // No features are registered since class scanner only looks for 
JAX-RS's 
         // @Provider annotations, not JAX-RS/CXF Features.
         assertThat(scanner.getFeatures()).isEmpty();
diff --git 
a/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringJaxrsComponentScanningTest.java
 
b/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringJaxrsComponentScanningTest.java
index afc79276844..eb8d58dca72 100644
--- 
a/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringJaxrsComponentScanningTest.java
+++ 
b/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringJaxrsComponentScanningTest.java
@@ -40,7 +40,7 @@ import static org.assertj.core.api.Assertions.assertThat;
 @SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT,
         classes = SpringJaxrsComponentScanningTest.TestConfig.class)
 @ActiveProfiles("jaxrs-component-scan")
-public class SpringJaxrsComponentScanningTest {
+class SpringJaxrsComponentScanningTest {
     @Autowired
     private AbstractSpringComponentScanServer scanner;
 
@@ -50,7 +50,7 @@ public class SpringJaxrsComponentScanningTest {
     }
 
     @Test
-    public void testCxfComponentScan() {
+    void testCxfComponentScan() {
         // The component scanner only looks for CXF's @Provider annotations, 
         // not JAX-RS Features/@Provider.
         assertThat(scanner.getFeatures())
diff --git 
a/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringJaxrsTest.java
 
b/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringJaxrsTest.java
index 81fc27c14fd..fe85d6267d1 100644
--- 
a/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringJaxrsTest.java
+++ 
b/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringJaxrsTest.java
@@ -74,7 +74,7 @@ import static org.hamcrest.Matchers.empty;
 @ExtendWith(SpringExtension.class)
 @SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT, classes = 
SpringJaxrsTest.TestConfig.class)
 @ActiveProfiles("jaxrs")
-public class SpringJaxrsTest {
+class SpringJaxrsTest {
 
     @Autowired
     private MeterRegistry registry;
@@ -118,7 +118,7 @@ public class SpringJaxrsTest {
     }
 
     @Test
-    public void testJaxrsSuccessMetric() {
+    void testJaxrsSuccessMetric() {
         final WebTarget target = createWebTarget();
         
         try (Response r = target.request().get()) {
@@ -159,7 +159,7 @@ public class SpringJaxrsTest {
     }
     
     @Test
-    public void testJaxrsFailedMetric() {
+    void testJaxrsFailedMetric() {
         final WebTarget target = createWebTarget();
         
         assertThatThrownBy(() -> target.path("100").request().get(Book.class))
@@ -200,7 +200,7 @@ public class SpringJaxrsTest {
     }
     
     @Test
-    public void testJaxrsExceptionMetric() {
+    void testJaxrsExceptionMetric() {
         final WebTarget target = createWebTarget();
         
         assertThatThrownBy(() -> target.request().delete(String.class))
@@ -241,7 +241,7 @@ public class SpringJaxrsTest {
     }
     
     @Test
-    public void testJaxrsClientExceptionMetric() {
+    void testJaxrsClientExceptionMetric() {
         final int fakePort = SocketUtils.findAvailableTcpPort();
         
         final WebTarget target = ClientBuilder
@@ -273,7 +273,7 @@ public class SpringJaxrsTest {
     }
     
     @Test
-    public void testJaxrsProxySuccessMetric() {
+    void testJaxrsProxySuccessMetric() {
         final LibraryApi api = createApi(port);
         
         try (Response r = api.getBooks(1)) {
@@ -314,7 +314,7 @@ public class SpringJaxrsTest {
     }
     
     @Test
-    public void testJaxrsProxyExceptionMetric() {
+    void testJaxrsProxyExceptionMetric() {
         final LibraryApi api = createApi(port);
         
         assertThatThrownBy(() -> api.deleteBooks())
@@ -355,7 +355,7 @@ public class SpringJaxrsTest {
     }
     
     @Test
-    public void testJaxrsProxyFailedMetric() {
+    void testJaxrsProxyFailedMetric() {
         final LibraryApi api = createApi(port);
 
         try (Response r = api.getBook("100")) {
@@ -396,7 +396,7 @@ public class SpringJaxrsTest {
     }
     
     @Test
-    public void testJaxrsProxyClientExceptionMetric() {
+    void testJaxrsProxyClientExceptionMetric() {
         final int fakePort = SocketUtils.findAvailableTcpPort();
         final LibraryApi api = createApi(fakePort);
 
@@ -424,7 +424,7 @@ public class SpringJaxrsTest {
     }
     
     @Test
-    public void testJaxrsCustomHttpMethodMetric() {
+    void testJaxrsCustomHttpMethodMetric() {
         final WebTarget target = createWebTarget();
         
         try (Response r = target.request().trace()) {
diff --git 
a/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringSseEmitterTest.java
 
b/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringSseEmitterTest.java
index ef1d3540c90..c5a91ac3200 100644
--- 
a/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringSseEmitterTest.java
+++ 
b/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxrs/spring/boot/SpringSseEmitterTest.java
@@ -51,7 +51,7 @@ import static org.hamcrest.MatcherAssert.assertThat;
 
 @ExtendWith(SpringExtension.class)
 @SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT, classes = 
SpringSseEmitterTest.LibraryController.class)
-public class SpringSseEmitterTest {
+class SpringSseEmitterTest {
     private static final int CNT = 5;
     @LocalServerPort
     private int port;
@@ -82,7 +82,7 @@ public class SpringSseEmitterTest {
     }
     
     @Test
-    public void testSseEvents() throws InterruptedException {
+    void testSseEvents() throws InterruptedException {
         final WebTarget target = createWebTarget();
         final Collection<Book> books = new ArrayList<>(CNT);
         final AtomicReference<Throwable> throwable = new AtomicReference<>();
diff --git 
a/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxws/spring/boot/SpringJaxwsTest.java
 
b/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxws/spring/boot/SpringJaxwsTest.java
index 623bb5ec696..40e7540c014 100644
--- 
a/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxws/spring/boot/SpringJaxwsTest.java
+++ 
b/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxws/spring/boot/SpringJaxwsTest.java
@@ -83,8 +83,7 @@ import static org.hamcrest.Matchers.empty;
             "cxf.metrics.server.max-uri-tags=2"
         })
 @ActiveProfiles("jaxws")
-public class SpringJaxwsTest {
-
+class SpringJaxwsTest {
     private static final String DUMMY_REQUEST_BODY = "<q0:sayHello 
xmlns:q0=\"http://service.ws.sample/\";>"
             + "<name>Elan</name>"
             + "</q0:sayHello>";
@@ -143,7 +142,7 @@ public class SpringJaxwsTest {
     }
 
     @Test
-    public void testJaxwsSuccessMetric() throws MalformedURLException {
+    void testJaxwsSuccessMetric() throws MalformedURLException {
         // given in setUp
 
         // when
@@ -191,7 +190,7 @@ public class SpringJaxwsTest {
     }
 
     @Test
-    public void testJaxwsFailedMetric() {
+    void testJaxwsFailedMetric() {
         // given
         String requestBody = "<q0:sayHello 
xmlns:q0=\"http://service.ws.sample/\";></q0:sayHello>";
 
@@ -241,7 +240,7 @@ public class SpringJaxwsTest {
 
     @Test
     @ExtendWith(OutputCaptureExtension.class)
-    public void testAfterMaxUrisReachedFurtherUrisAreDenied(CapturedOutput 
output) throws MalformedURLException {
+    void testAfterMaxUrisReachedFurtherUrisAreDenied(CapturedOutput output) 
throws MalformedURLException {
         // given in setUp
 
         // when
@@ -256,7 +255,7 @@ public class SpringJaxwsTest {
 
     @Test
     @ExtendWith(OutputCaptureExtension.class)
-    public void testDoesNotDenyNorLogIfMaxUrisIsNotReached(CapturedOutput 
output) throws MalformedURLException {
+    void testDoesNotDenyNorLogIfMaxUrisIsNotReached(CapturedOutput output) 
throws MalformedURLException {
         // given in setUp
 
         // when
@@ -268,7 +267,7 @@ public class SpringJaxwsTest {
     }
 
     @Test
-    public void testJaxwsProxySuccessMetric() throws MalformedURLException {
+    void testJaxwsProxySuccessMetric() throws MalformedURLException {
         final HelloService api = createApi(port, HELLO_SERVICE_NAME_V1); 
         assertThat(api.sayHello("Elan")).isEqualTo("Hello, Elan");
 
@@ -308,7 +307,7 @@ public class SpringJaxwsTest {
     }
     
     @Test
-    public void testJaxwsProxyFailedMetric() {
+    void testJaxwsProxyFailedMetric() {
         final HelloService api = createApi(port, HELLO_SERVICE_NAME_V1); 
 
         // then
@@ -352,7 +351,7 @@ public class SpringJaxwsTest {
     }
 
     @Test
-    public void testJaxwsProxyClientExceptionMetric() throws 
MalformedURLException {
+    void testJaxwsProxyClientExceptionMetric() throws MalformedURLException {
         final int fakePort = SocketUtils.findAvailableTcpPort();
         final HelloService api = createApi(fakePort, HELLO_SERVICE_NAME_V1); 
         
diff --git 
a/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxws/spring/boot/SpringJaxwsTimedTest.java
 
b/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxws/spring/boot/SpringJaxwsTimedTest.java
index 9425c000bbd..26196dc7d16 100644
--- 
a/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxws/spring/boot/SpringJaxwsTimedTest.java
+++ 
b/systests/spring-boot/src/test/java/org/apache/cxf/systest/jaxws/spring/boot/SpringJaxwsTimedTest.java
@@ -75,8 +75,7 @@ import static org.hamcrest.Matchers.empty;
             "cxf.metrics.server.max-uri-tags=2"
         })
 @ActiveProfiles("jaxws")
-public class SpringJaxwsTimedTest {
-
+class SpringJaxwsTimedTest {
     private static final String DUMMY_REQUEST_BODY = "<q0:sayHello 
xmlns:q0=\"http://service.ws.sample/\";>"
             + "<name>Elan</name>"
             + "</q0:sayHello>";
@@ -128,7 +127,7 @@ public class SpringJaxwsTimedTest {
     }
 
     @Test
-    public void testJaxwsTimedSuccessMetric() throws MalformedURLException {
+    void testJaxwsTimedSuccessMetric() throws MalformedURLException {
         // given in setUp
 
         // when
@@ -191,7 +190,7 @@ public class SpringJaxwsTimedTest {
     }
     
     @Test
-    public void testJaxwsEmptyTimedSuccessMetric() throws 
MalformedURLException {
+    void testJaxwsEmptyTimedSuccessMetric() throws MalformedURLException {
         // given in setUp
 
         // when
diff --git 
a/systests/transport-hc5/src/test/java/org/apache/cxf/systest/hc5/jaxrs/BookServerAsyncClient.java
 
b/systests/transport-hc5/src/test/java/org/apache/cxf/systest/hc5/jaxrs/BookServerAsyncClient.java
index 0d812814dad..f769bbe9d0c 100644
--- 
a/systests/transport-hc5/src/test/java/org/apache/cxf/systest/hc5/jaxrs/BookServerAsyncClient.java
+++ 
b/systests/transport-hc5/src/test/java/org/apache/cxf/systest/hc5/jaxrs/BookServerAsyncClient.java
@@ -24,6 +24,8 @@ import java.io.InputStream;
 import java.io.OutputStream;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Type;
+import java.nio.charset.StandardCharsets;
+import java.util.List;
 
 import javax.ws.rs.Consumes;
 import javax.ws.rs.Produces;
@@ -97,7 +99,7 @@ public class BookServerAsyncClient extends 
AbstractServerTestServerBase {
         public void writeTo(Boolean t, Class<?> type, Type genericType, 
Annotation[] annotations,
                             MediaType mediaType, MultivaluedMap<String, 
Object> httpHeaders,
                             OutputStream os) throws IOException, 
WebApplicationException {
-            byte[] bytes = t.toString().getBytes("UTF-8");
+            byte[] bytes = t.toString().getBytes(StandardCharsets.UTF_8);
             os.write(bytes);
 
         }
diff --git 
a/systests/transports/src/test/java/org/apache/cxf/systest/hc/jaxrs/BookServerAsyncClient.java
 
b/systests/transports/src/test/java/org/apache/cxf/systest/hc/jaxrs/BookServerAsyncClient.java
index 0abbb4d502c..d3b2fe6b5ab 100644
--- 
a/systests/transports/src/test/java/org/apache/cxf/systest/hc/jaxrs/BookServerAsyncClient.java
+++ 
b/systests/transports/src/test/java/org/apache/cxf/systest/hc/jaxrs/BookServerAsyncClient.java
@@ -24,6 +24,7 @@ import java.io.InputStream;
 import java.io.OutputStream;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Type;
+import java.nio.charset.StandardCharsets;
 
 import javax.ws.rs.Consumes;
 import javax.ws.rs.Produces;
@@ -97,7 +98,7 @@ public class BookServerAsyncClient extends 
AbstractServerTestServerBase {
         public void writeTo(Boolean t, Class<?> type, Type genericType, 
Annotation[] annotations,
                             MediaType mediaType, MultivaluedMap<String, 
Object> httpHeaders,
                             OutputStream os) throws IOException, 
WebApplicationException {
-            byte[] bytes = t.toString().getBytes("UTF-8");
+            byte[] bytes = t.toString().getBytes(StandardCharsets.UTF_8);
             os.write(bytes);
 
         }
diff --git 
a/systests/transports/src/test/java/org/apache/cxf/systest/http/auth/DigestAuthSupplierJettyTest.java
 
b/systests/transports/src/test/java/org/apache/cxf/systest/http/auth/DigestAuthSupplierJettyTest.java
index 3debbca7aa8..cae745a4d22 100644
--- 
a/systests/transports/src/test/java/org/apache/cxf/systest/http/auth/DigestAuthSupplierJettyTest.java
+++ 
b/systests/transports/src/test/java/org/apache/cxf/systest/http/auth/DigestAuthSupplierJettyTest.java
@@ -48,7 +48,7 @@ import org.junit.Test;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertThrows;
 
-public class DigestAuthSupplierJettyTest extends AbstractClientServerTestBase {
+class DigestAuthSupplierJettyTest extends AbstractClientServerTestBase {
 
     private static final String USER = "alice";
     private static final String PWD = "ecila";
diff --git 
a/systests/uncategorized/src/test/java/org/apache/cxf/systest/mtom/ClientMtomXopTest.java
 
b/systests/uncategorized/src/test/java/org/apache/cxf/systest/mtom/ClientMtomXopTest.java
index 5bdb17f9135..b5ad5fe225c 100644
--- 
a/systests/uncategorized/src/test/java/org/apache/cxf/systest/mtom/ClientMtomXopTest.java
+++ 
b/systests/uncategorized/src/test/java/org/apache/cxf/systest/mtom/ClientMtomXopTest.java
@@ -417,7 +417,7 @@ public class ClientMtomXopTest extends 
AbstractBusClientServerTestBase {
         }
         byte[] data = new byte[(int)fileSize];
         this.getClass().getResourceAsStream("/wsdl/mtom_xop.wsdl").read(data);
-        String stringValue = new String(data, "utf-8");
+        String stringValue = new String(data, StandardCharsets.UTF_8);
         XopStringType xsv = new XopStringType();
         xsv.setAttachinfo(stringValue);
         xsv.setName("eman");
diff --git 
a/systests/uncategorized/src/test/java/org/apache/cxf/systest/type_test/I18NStrings.java
 
b/systests/uncategorized/src/test/java/org/apache/cxf/systest/type_test/I18NStrings.java
index ec461a0c37f..eda21937879 100644
--- 
a/systests/uncategorized/src/test/java/org/apache/cxf/systest/type_test/I18NStrings.java
+++ 
b/systests/uncategorized/src/test/java/org/apache/cxf/systest/type_test/I18NStrings.java
@@ -18,6 +18,8 @@
  */
 package org.apache.cxf.systest.type_test;
 
+import java.nio.charset.StandardCharsets;
+
 public final class I18NStrings {
 
     public static final String JAP_SIMPLE_STRING;
@@ -33,7 +35,7 @@ public final class I18NStrings {
                 (byte)0x0, (byte)0x65, (byte)0x69, (byte)0x1c, (byte)0x7d, 
(byte)0x22,
                 (byte)0x69, (byte)0x1c, (byte)0x7d, (byte)0x22, (byte)0x30, 
(byte)0xaa,
                 (byte)0x30, (byte)0xd7, (byte)0x30, (byte)0xb7, (byte)0x30, 
(byte)0xe7,
-                (byte)0x30, (byte)0xf3, }, "utf-16");
+                (byte)0x30, (byte)0xf3, }, StandardCharsets.UTF_16);
         } catch (Exception ex) {
             tmp = null;
         }
@@ -167,7 +169,7 @@ public final class I18NStrings {
                 (byte)0xff, (byte)0x44, (byte)0xff, (byte)0x45, (byte)0xff, 
(byte)0x46,
                 (byte)0xff, (byte)0x47, (byte)0xff, (byte)0x48, (byte)0xff, 
(byte)0x49,
                 (byte)0xff, (byte)0x4a, (byte)0xff, (byte)0x4b, (byte)0xff, 
(byte)0x4c,
-                (byte)0xff, (byte)0x4d, (byte)0xff, (byte)0x4e}, "utf-16");
+                (byte)0xff, (byte)0x4d, (byte)0xff, (byte)0x4e}, 
StandardCharsets.UTF_16);
         } catch (Exception ex) {
             tmp = null;
         }
diff --git 
a/systests/ws-specs/src/test/java/org/apache/cxf/systest/ws/addr_fromjava/WSAFromJavaTest.java
 
b/systests/ws-specs/src/test/java/org/apache/cxf/systest/ws/addr_fromjava/WSAFromJavaTest.java
index edb52e54fe1..bb5493f3ae0 100644
--- 
a/systests/ws-specs/src/test/java/org/apache/cxf/systest/ws/addr_fromjava/WSAFromJavaTest.java
+++ 
b/systests/ws-specs/src/test/java/org/apache/cxf/systest/ws/addr_fromjava/WSAFromJavaTest.java
@@ -48,6 +48,7 @@ import org.junit.Test;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertThrows;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 
@@ -87,14 +88,7 @@ public class WSAFromJavaTest extends AbstractWSATestBase {
 
         AddNumberImpl port = getPort();
 
-        try {
-            port.addNumbers(-1, 2);
-        } catch (AddNumbersException_Exception e) {
-            assert true;
-        } catch (Exception e) {
-            e.printStackTrace();
-            assert false;
-        }
+        assertThrows(AddNumbersException_Exception.class, () -> 
port.addNumbers(-1, 2));
 
         assertTrue(output.toString().indexOf("http://cxf.apache.org/input";) != 
-1);
         String expectedFault =
@@ -128,14 +122,7 @@ public class WSAFromJavaTest extends AbstractWSATestBase {
 
         AddNumberImpl port = getPort();
 
-        try {
-            port.addNumbers3(-1, 2);
-        } catch (AddNumbersException_Exception e) {
-            assert true;
-        } catch (Exception e) {
-            e.printStackTrace();
-            assert false;
-        }
+        assertThrows(AddNumbersException_Exception.class, () -> 
port.addNumbers3(-1, 2));
 
         assertTrue(output.toString(), 
output.toString().indexOf("http://cxf.apache.org/input";) != -1);
         assertTrue(input.toString(), 
input.toString().indexOf("http://cxf.apache.org/fault3";) != -1);
diff --git 
a/systests/ws-specs/src/test/java/org/apache/cxf/systest/ws/addr_fromwsdl/WSAFromWSDLTest.java
 
b/systests/ws-specs/src/test/java/org/apache/cxf/systest/ws/addr_fromwsdl/WSAFromWSDLTest.java
index c079653bbf5..73db9c4a459 100644
--- 
a/systests/ws-specs/src/test/java/org/apache/cxf/systest/ws/addr_fromwsdl/WSAFromWSDLTest.java
+++ 
b/systests/ws-specs/src/test/java/org/apache/cxf/systest/ws/addr_fromwsdl/WSAFromWSDLTest.java
@@ -42,6 +42,7 @@ import org.junit.Test;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertThrows;
 import static org.junit.Assert.assertTrue;
 
 public class WSAFromWSDLTest extends AbstractWSATestBase {
@@ -121,14 +122,7 @@ public class WSAFromWSDLTest extends AbstractWSATestBase {
 
         AddNumbersPortType port = getPort();
 
-        try {
-            port.addNumbers(-1, 2);
-        } catch (AddNumbersFault_Exception ex) {
-            assert true;
-        } catch (Exception e) {
-            e.printStackTrace();
-            assert false;
-        }
+        assertThrows(AddNumbersFault_Exception.class, () -> 
port.addNumbers(-1, 2));
 
         String expectedOut = BASE_URI + "addNumbersRequest";
         String expectedIn = BASE_URI + "addNumbers/Fault/addNumbersFault";
@@ -144,14 +138,7 @@ public class WSAFromWSDLTest extends AbstractWSATestBase {
 
         try (AddNumbersPortTypeProxy port = getPort()) {
 
-            try {
-                port.addNumbers3(-1, 2);
-            } catch (AddNumbersFault_Exception ex) {
-                assert true;
-            } catch (Exception e) {
-                e.printStackTrace();
-                assert false;
-            }
+            assertThrows(AddNumbersFault_Exception.class, () -> 
port.addNumbers3(-1, 2));
 
             String expectedOut = "3in";
             String expectedIn = "3fault";
diff --git 
a/testutils/src/main/java/org/apache/cxf/testutil/common/ServerLauncher.java 
b/testutils/src/main/java/org/apache/cxf/testutil/common/ServerLauncher.java
index e90d3f27e08..a936429aa28 100644
--- a/testutils/src/main/java/org/apache/cxf/testutil/common/ServerLauncher.java
+++ b/testutils/src/main/java/org/apache/cxf/testutil/common/ServerLauncher.java
@@ -255,6 +255,7 @@ public class ServerLauncher {
         return ret;
     }
 
+    @SuppressWarnings("PMD.OverridingThreadRun")
     private class OutputMonitorThread extends Thread {
         InputStream in;
         StringBuilder serverOutputAll = new StringBuilder();
diff --git 
a/tools/corba/src/main/java/org/apache/cxf/tools/corba/idlpreprocessor/IncludeStackEntry.java
 
b/tools/corba/src/main/java/org/apache/cxf/tools/corba/idlpreprocessor/IncludeStackEntry.java
index bce2d917a5b..4453934caf2 100644
--- 
a/tools/corba/src/main/java/org/apache/cxf/tools/corba/idlpreprocessor/IncludeStackEntry.java
+++ 
b/tools/corba/src/main/java/org/apache/cxf/tools/corba/idlpreprocessor/IncludeStackEntry.java
@@ -23,6 +23,7 @@ import java.io.IOException;
 import java.io.InputStreamReader;
 import java.io.LineNumberReader;
 import java.net.URL;
+import java.nio.charset.StandardCharsets;
 
 /**
  * Provides information about a file that
@@ -37,7 +38,7 @@ class IncludeStackEntry {
     IncludeStackEntry(URL link, String loc) throws IOException {
         this.url = link;
         this.location = loc;
-        this.reader = new LineNumberReader(new 
InputStreamReader(url.openStream(), "ISO-8859-1"));
+        this.reader = new LineNumberReader(new 
InputStreamReader(url.openStream(), StandardCharsets.ISO_8859_1));
         this.reader.setLineNumber(1);
     }
 
diff --git 
a/tools/corba/src/test/java/org/apache/cxf/tools/corba/idlpreprocessor/IdlPreprocessorReaderTest.java
 
b/tools/corba/src/test/java/org/apache/cxf/tools/corba/idlpreprocessor/IdlPreprocessorReaderTest.java
index 3d37a2420a6..f6672cc4852 100644
--- 
a/tools/corba/src/test/java/org/apache/cxf/tools/corba/idlpreprocessor/IdlPreprocessorReaderTest.java
+++ 
b/tools/corba/src/test/java/org/apache/cxf/tools/corba/idlpreprocessor/IdlPreprocessorReaderTest.java
@@ -26,6 +26,7 @@ import java.io.LineNumberReader;
 import java.io.Reader;
 import java.io.UnsupportedEncodingException;
 import java.net.URL;
+import java.nio.charset.StandardCharsets;
 import java.util.Collections;
 import java.util.regex.Pattern;
 
@@ -135,7 +136,7 @@ public class IdlPreprocessorReaderTest {
         LineNumberReader oReader = new LineNumberReader(includeReader);
         InputStream resolved = 
findTestResource(expectedResultLocation).openStream();
         try (LineNumberReader rReader
-            = new LineNumberReader(new InputStreamReader(resolved, 
"ISO-8859-1"))) {
+            = new LineNumberReader(new InputStreamReader(resolved, 
StandardCharsets.ISO_8859_1))) {
             boolean eof;
             do {
                 int line = rReader.getLineNumber() + 1;
diff --git 
a/tools/validator/src/main/java/org/apache/cxf/tools/validator/internal/ValidatorUtil.java
 
b/tools/validator/src/main/java/org/apache/cxf/tools/validator/internal/ValidatorUtil.java
index df959a698b6..1ddb0bfb1e8 100644
--- 
a/tools/validator/src/main/java/org/apache/cxf/tools/validator/internal/ValidatorUtil.java
+++ 
b/tools/validator/src/main/java/org/apache/cxf/tools/validator/internal/ValidatorUtil.java
@@ -24,6 +24,7 @@ import java.io.IOException;
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -88,7 +89,7 @@ public final class ValidatorUtil {
         }
         synchronized (document) {
             // URL might need encoding for special characters.
-            baseURI = URLEncoder.encode(baseURI, "utf-8");
+            baseURI = URLEncoder.encode(baseURI, StandardCharsets.UTF_8);
             SchemaCollection schemaCol = new SchemaCollection();
             schemaCol.setBaseUri(baseURI);
 

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