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https://issues.apache.org/jira/browse/TAPESTRY-1279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12474660
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Matt Ayres commented on TAPESTRY-1279:
--------------------------------------
This exception disappears if you remove the <head> element from the template.
As well, it'll generate the same exception if you add a <head> block (even
empty) to any of the integration test cases, such as TestPageForForm.html.
> NullPointerException when using PageTester
> ------------------------------------------
>
> Key: TAPESTRY-1279
> URL: https://issues.apache.org/jira/browse/TAPESTRY-1279
> Project: Tapestry
> Issue Type: Bug
> Components: Core
> Affects Versions: 5.0
> Reporter: Matt Ayres
>
> Following the instruction from
> http://tapestry.apache.org/tapestry5/tapestry-simple/ and running a test
> class like this:
> public class MyTest {
> public static void main(String[] args) {
> String appPackage = "org.example.myapp";
> String appName = "app";
> String appRoot = "src/main/webapp";
> PageTester tester = new PageTester(appPackage, appName,
> appRoot);
> tester.renderPage("Start");
> }
> }
> Yields an exception for both the 5.0.1 preview release and the latest from
> trunk (revision 509135). Here's the stack trace from trunk:
> Exception in thread "main" java.lang.NullPointerException
> at $Request_110d9536317.getContextPath($Request_110d9536317.java)
> at $Request_110d95362e3.getContextPath($Request_110d95362e3.java)
> at
> org.apache.tapestry.internal.services.ClasspathAssetAliasManagerImpl.toClientURL(ClasspathAssetAliasManagerImpl.java:78)
> at
> $ClasspathAssetAliasManager_110d95362d6.toClientURL($ClasspathAssetAliasManager_110d95362d6.java)
> at
> org.apache.tapestry.internal.services.ClasspathAssetFactory.buildClientURL(ClasspathAssetFactory.java:85)
> at
> org.apache.tapestry.internal.services.ClasspathAssetFactory.clientURL(ClasspathAssetFactory.java:60)
> at
> org.apache.tapestry.internal.services.ClasspathAssetFactory.access$0(ClasspathAssetFactory.java:54)
> at
> org.apache.tapestry.internal.services.ClasspathAssetFactory$1.toClientURL(ClasspathAssetFactory.java:103)
> at
> org.apache.tapestry.internal.services.InjectStandardStylesheetCommand.cleanup(InjectStandardStylesheetCommand.java:60)
> at
> org.apache.tapestry.services.TapestryModule$8.cleanup(TapestryModule.java:956)
> at
> $PageRenderInitializer_110d9536313.cleanup($PageRenderInitializer_110d9536313.java)
> at
> org.apache.tapestry.internal.services.PageMarkupRendererImpl.renderPageMarkup(PageMarkupRendererImpl.java:42)
> at
> $PageMarkupRenderer_110d95362fe.renderPageMarkup($PageMarkupRenderer_110d95362fe.java)
> at
> org.apache.tapestry.test.pagelevel.PageLinkInvoker$1.renderPage(PageLinkInvoker.java:65)
> at
> org.apache.tapestry.internal.services.PageLinkHandlerImpl.handle(PageLinkHandlerImpl.java:54)
> at
> $PageLinkHandler_110d95362fd.handle($PageLinkHandler_110d95362fd.java)
> at
> org.apache.tapestry.test.pagelevel.PageLinkInvoker.invoke(PageLinkInvoker.java:60)
> at
> org.apache.tapestry.test.pagelevel.PageTester.invoke(PageTester.java:219)
> at
> org.apache.tapestry.test.pagelevel.PageTester.renderPage(PageTester.java:184)
> at org.example.MyTest.main(MyTest.java:11)
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