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From Brett Porter <br...@apache.org>
Subject Re: MOJO/plugin use of TestNG annocation results in an exception
Date Tue, 24 Jan 2006 23:24:04 GMT
I'd need to look into the code. I know surefire creates an isolated
classloader but I don't know how that is being applied to the test NG
support.

I assume this is with Jesse Kuhnert's recent work? I'll try and review
that on the plane on the way home...

- Brett

Michael Fiedler wrote:
> My question is:
> 
> Why am I able to find the class using 
>          ClassLoader classLoader = this.getClass().getClassLoader();
>          classLoader.loadClass("org.testng.annotations.Test");
>          getLog().info(org.testng.annotations.Test.class.getName());
> [INFO] org.testng.annotations.Test
> 
> But getting an exception when TestNG tries to find that same class?
> 
> [INFO] Type org.testng.annotations.Test not present
>  java.lang.TypeNotPresentException: Type org.testng.annotations.Test not
> present
> 
> 
> My assumption is that TestNG is not using the same classloader.  I am
> next going to dig into the TestNG code, but if someone already knew the
> cause I would appreciate their help.  Also, if someone could point me to
> the right document, I would also be thankful.
> 
> Thank you, Michael
> 
> 
> -----Original Message-----
> From: Brett Porter [mailto:brett@apache.org] 
> Sent: Friday, January 20, 2006 1:31 PM
> To: Maven Developers List
> Subject: Re: MOJO/plugin use of TestNG annocation results in an
> exception
> 
> Sorry, I'm not sure I understand the question?
> 
> Michael Fiedler wrote:
>> Hi,
>>
>>  
>>
>> I am invoking a TestNG test from within a plugin.  The test class has
> a
>> java 1.5 language annotation when the exception took place.  Changing
>> the test class to a TestNG javadoc tag/annotation allowed the tests to
>> run without experiencing an exception.
>>
>>  
>>
>> I checked to make sure the annotated interface could be found at some
>> point.  It was!  It is in the dependent jar - TestNG.
>>
>>  
>>
>> Anyone experience this before?  Any suggestions?
>>
>>  
>>
>> Thank you, Michael
>>
>>  
>>
>>  
>>
>> Code:
>>
>>  
>>
>>         ClassLoader classLoader = this.getClass().getClassLoader();
>>
>>         getLog().info(classLoader.getClass().getName());
>>
>>  
>>
>>         try {
>>
>>  
>> classLoader.loadClass("org.testng.annotations.Test");
>>
>>  
>> getLog().info(org.testng.annotations.Test.class.getName());
>>
>>         } catch (ClassNotFoundException e1) {
>>
>>                                     getLog().error(e1.getMessage());
>>
>>                                     e1.printStackTrace();
>>
>>                                     throw new
>> MojoFailureException(e1.getMessage());
>>
>>         }
>>
>>  
>>
>>  
>>
>> Result:
>>
>> ...
>>
>> [INFO] org.codehaus.classworlds.RealmClassLoader
>>
>> [INFO] org.testng.annotations.Test
>>
>> ...
>>
>>  
>>
>>  
>>
>>  
>>
>> Code:
>>
>>                         try {
>>
>>                                     getLog().info("testing class
> loading
>> of 'org.testng.annotations.Test'");
>>
>>                                     Class otat =
>> Class.forName("org.testng.annotations.Test");
>>
>>  
>> getLog().info(otat.getClass().getName());
>>
>>  
>> getLog().info(otat.getCanonicalName());
>>
>>                         } catch (ClassNotFoundException e) {
>>
>>                                     getLog().error(e.getMessage());
>>
>>                                     e.printStackTrace();
>>
>>                         }
>>
>>  
>>
>> ...
>>
>>             TestNG testng = new TestNG(xmlSuite);
>>
>>             testng.setTestJar(jarFilename);
>>
>>             testng.setSourcePath(srcPath.getAbsolutePath() + ";" +
>> testPath.getAbsolutePath());
>>
>>             testng.setOutputDirectory(metadataDir.getAbsolutePath() +
>> "/testNG");
>>
>>             testng.setVerbose(1);
>>
>>             testng.setGroups("Preferred");
>>
>>             testng.run();
>>
>>  
>>
>>  
>>
>> Result:
>>
>> [INFO] testing class loading of 'org.testng.annotations.Test'
>>
>> [INFO] java.lang.Class
>>
>> [INFO] org.testng.annotations.Test
>>
>>  
>>
>> ===============================================
>>
>> Suite of Tests
>>
>> Total tests run: 0, Failures: 0, Skips: 0
>>
>> ===============================================
>>
>>  
>>
>> [INFO]
>>
> ------------------------------------------------------------------------
>> ----
>>
>> [ERROR] FATAL ERROR
>>
>> [INFO]
>>
> ------------------------------------------------------------------------
>> ----
>>
>> [INFO] Type org.testng.annotations.Test not present
>>
>> [INFO]
>>
> ------------------------------------------------------------------------
>> ----
>>
>> [INFO] Trace
>>
>> java.lang.TypeNotPresentException: Type org.testng.annotations.Test
> not
>> present
>>
>>         at
>>
> sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(CoreRef
>> lectionFactory.java:98)
>>
>>         at
>>
> sun.reflect.generics.visitor.Reifier.visitClassTypeSignature(Reifier.jav
>> a:107)
>>
>>         at
>>
> sun.reflect.generics.tree.ClassTypeSignature.accept(ClassTypeSignature.j
>> ava:31)
>>
>>         at
>>
> sun.reflect.annotation.AnnotationParser.parseSig(AnnotationParser.java:3
>> 51)
>>
>>         at
>>
> sun.reflect.annotation.AnnotationParser.parseAnnotation(AnnotationParser
>> .java:175)
>>
>>         at
>>
> sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationPars
>> er.java:69)
>>
>>         at
>>
> sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParse
>> r.java:52)
>>
>>         at
> java.lang.reflect.Method.declaredAnnotations(Method.java:676)
>>         at
>> java.lang.reflect.Method.getDeclaredAnnotations(Method.java:669)
>>
>>         at
>>
> java.lang.reflect.AccessibleObject.getAnnotations(AccessibleObject.java:
>> 179)
>>
>>         at
>>
> org.testng.internal.jdk15.JDK15AnnotationFinder.findAnnotation(JDK15Anno
>> tationFinder.java:70)
>>
>>         at
>>
> org.testng.internal.jdk15.JDK15AnnotationFinder.findAnnotation(JDK15Anno
>> tationFinder.java:92)
>>
>>         at
>>
> org.testng.internal.TestNGClassFinder.isTestNGClass(TestNGClassFinder.ja
>> va:158)
>>
>>         at
>>
> org.testng.internal.TestNGClassFinder.<init>(TestNGClassFinder.java:49)
>>         at org.testng.TestRunner.initMethods(TestRunner.java:256)
>>
>>         at org.testng.TestRunner.init(TestRunner.java:192)
>>
>>         at org.testng.TestRunner.init(TestRunner.java:164)
>>
>>         at org.testng.TestRunner.<init>(TestRunner.java:112)
>>
>>         at
>>
> org.testng.SuiteRunner$DefaultTestRunnerFactory.newTestRunner(SuiteRunne
>> r.java:325)
>>
>>         at org.testng.SuiteRunner.privateRun(SuiteRunner.java:160)
>>
>>         at org.testng.SuiteRunner.run(SuiteRunner.java:126)
>>
>>         at org.testng.TestNG.run(TestNG.java:292)
>>
>>         at com.werner.osc.m2plugin.emma.Unit2.test2(Unit2.java:310)
>>
>>         at com.werner.osc.m2plugin.emma.Unit2.execute(Unit2.java:82)
>>
>>         at
>>
> org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginMa
>> nager.java:432)
>>
>>         at
>>
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(Default
>> LifecycleExecutor.java:530)
>>
>>         at
>>
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoa
>> l(DefaultLifecycleExecutor.java:485)
>>
>>         at
>>
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultL
>> ifecycleExecutor.java:455)
>>
>>         at
>>
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandle
>> Failures(DefaultLifecycleExecutor.java:303)
>>
>>         at
>>
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(
>> DefaultLifecycleExecutor.java:270)
>>
>>         at
>>
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifec
>> ycleExecutor.java:139)
>>
>>         at
>> org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:322)
>>
>>         at
> org.apache.maven.DefaultMaven.execute(DefaultMaven.java:115)
>>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:249)
>>
>>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>
>>         at
>>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
>> a:39)
>>
>>         at
>>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
>> Impl.java:25)
>>
>>         at java.lang.reflect.Method.invoke(Method.java:585)
>>
>>         at
>> org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
>>
>>         at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
>>
>>         at
>> org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
>>
>>         at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
>>
>> Caused by: java.lang.ClassNotFoundException:
> org.testng.annotations.Test
>>         at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
>>
>>         at java.security.AccessController.doPrivileged(Native Method)
>>
>>         at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
>>
>>         at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>>
>>         at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
>>
>>         at
> java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
>>         at java.lang.Class.forName0(Native Method)
>>
>>         at java.lang.Class.forName(Class.java:242)
>>
>>         at
>>
> sun.reflect.generics.factory.CoreReflectionFactory.makeNamedType(CoreRef
>> lectionFactory.java:95)
>>
>>         ... 41 more
>>
>>  
>>
>>  
>>
>>
> 
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