[ 
http://jira.codehaus.org/browse/MRETRO-24?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=145381#action_145381
 ] 

Elias Ross commented on MRETRO-24:
----------------------------------

This code also seems wrong and will generate a NullPointerException for me.

... protected void configureRetrotranslator(Retrotranslator trans) {
110             // add the classes directory
111             trans.addSrcdir(new File(transformedWarDir, 'WEB-INF/classes'))
112     
113             // if no jarfileset specified, create a default one...including 
all jar files
114             if (jarfileset) {
^^^ should probably be 
                       if (!jarfileset) {
115                 jarfileset = new DirectoryScanner()
116                 jarfileset.setIncludes([ '*.jar' ])
117             }

http://fisheye.codehaus.org/browse/mojo/tags/retrotranslator-maven-plugin-1.0-alpha-3/src/main/groovy/org/codehaus/mojo/retrotranslator/TranslateWarMojo.groovy?r=4357

> translate-war produces "argument type mismatch exception"
> ---------------------------------------------------------
>
>                 Key: MRETRO-24
>                 URL: http://jira.codehaus.org/browse/MRETRO-24
>             Project: Maven 2.x Retrotranslator Plugin
>          Issue Type: Bug
>    Affects Versions: 1.0-beta-1
>         Environment: OS X 10.5.2
> java version "1.5.0_13"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_13-b05-237)
> Java HotSpot(TM) Client VM (build 1.5.0_13-119, mixed mode, sharing)
>            Reporter: Alexander Maslov
>            Assignee: Jason Dillon
>             Fix For: 1.0-beta-1
>
>         Attachments: jarfileset.patch
>
>
> pom.xml :
> ....
> <plugin>
>                               <groupId>org.codehaus.mojo</groupId>
>                               
> <artifactId>retrotranslator-maven-plugin</artifactId>
>                               <version>1.0-beta-1-SNAPSHOT</version>
>                               <executions>
>                                       <execution>
>                                               <goals>
>                                                       
> <goal>translate-war</goal>
>                                               </goals>
>                                               <configuration>
>                                                       <jarfileset>
>                                                               <includes>
>                                                                       
> <include>hessian-${hessian.version}.jar</include>
>                                                               </includes>
>                                                       </jarfileset>
>                                                       
> <classifier>jdk14</classifier>
>                                                       <attach>true</attach>
>                                                       <verbose>true</verbose>
>                                               </configuration>
>                                       </execution>
>                               </executions>
>                       </plugin>
> ....
> output:
> ........
> [INFO] argument type mismatch
> [INFO] 
> ------------------------------------------------------------------------
> [INFO] Trace
> java.lang.IllegalArgumentException: argument type mismatch
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>       at java.lang.reflect.Method.invoke(Method.java:585)
>       at 
> org.codehaus.groovy.runtime.metaclass.ReflectionMetaMethod.invoke(ReflectionMetaMethod.java:56)
>       at 
> org.codehaus.groovy.runtime.MetaClassHelper.doMethodInvoke(MetaClassHelper.java:546)
>       at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:903)
>       at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:742)
>       at org.codehaus.groovy.runtime.Invoker.invokePojoMethod(Invoker.java:87)
>       at org.codehaus.groovy.runtime.Invoker.invokeMethod(Invoker.java:75)
>       at 
> org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:66)
>       at 
> org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodN(ScriptBytecodeAdapter.java:165)
>       at 
> org.codehaus.mojo.retrotranslator.TranslateWarMojo.configureRetrotranslator(TranslateWarMojo.groovy:116)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>       at java.lang.reflect.Method.invoke(Method.java:585)
>       at 
> org.codehaus.groovy.runtime.metaclass.ReflectionMetaMethod.invoke(ReflectionMetaMethod.java:56)
>       at 
> org.codehaus.groovy.runtime.MetaClassHelper.doMethodInvoke(MetaClassHelper.java:546)
>       at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:903)
>       at 
> org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnCurrentN(ScriptBytecodeAdapter.java:75)
>       at 
> org.codehaus.mojo.retrotranslator.RetrotranslateMojoSupport.execute(RetrotranslateMojoSupport.groovy:154)
>       at 
> org.codehaus.mojo.retrotranslator.TranslateWarMojo.super$5$execute(TranslateWarMojo.groovy)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>       at java.lang.reflect.Method.invoke(Method.java:585)
>       at 
> org.codehaus.groovy.runtime.metaclass.ReflectionMetaMethod.invoke(ReflectionMetaMethod.java:56)
>       at 
> org.codehaus.groovy.runtime.MetaClassHelper.doMethodInvoke(MetaClassHelper.java:546)
>       at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:903)
>       at 
> org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:126)
>       at 
> org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:149)
>       at 
> org.codehaus.mojo.retrotranslator.TranslateWarMojo.execute(TranslateWarMojo.groovy:88)
>       at 
> org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:447)
>       at 
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:539)
>       at 
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:480)
>       at 
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:459)
>       at 
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
>       at 
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
>       at 
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
>       at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:333)
>       at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:126)
>       at org.apache.maven.cli.MavenCli.main(MavenCli.java:282)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.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)

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