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Posted to issues@maven.apache.org by "Ludovic Claude (JIRA)" <ji...@codehaus.org> on 2007/12/06 19:41:57 UTC
[jira] Commented: (MWAR-134) ClasscastException when turning
filtering on the web resources
[ http://jira.codehaus.org/browse/MWAR-134?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_116066 ]
Ludovic Claude commented on MWAR-134:
-------------------------------------
I did a bit of debugging, so here are my results:
* the filter scans all files in src/main/webapp, and this includes JSP pages with tags like <%@ taglib ... />
* in InterpolationFilterReader.read(), the key value is "@", and the variableKey is ""
* for some reason, variables.get("") returns a MavenProject instance
In fact, the problem comes from the fact that plexus.utils 1.0.2 is used by the war plugin, while a more recent version of plexus.utils such as 1.2 doesn't try to cast directly the value returned by variables.get() to a String.
So the fix is quite simple here: use plexus 1.2 or better!
> ClasscastException when turning filtering on the web resources
> --------------------------------------------------------------
>
> Key: MWAR-134
> URL: http://jira.codehaus.org/browse/MWAR-134
> Project: Maven 2.x War Plugin
> Issue Type: Bug
> Affects Versions: 2.0.2
> Environment: Maven 2.0.8, Win XP
> Reporter: Ludovic Claude
>
> Hello,
> I have configured the maven-war-plugin to filter my files in src/main/webapp, in particular web.xml.
> <plugin>
> <groupId>org.apache.maven.plugins</groupId>
> <artifactId>maven-war-plugin</artifactId>
> <configuration>
> <archive>
> <addMavenDescriptor>
> false
> </addMavenDescriptor>
> </archive>
> <webResources>
> <resource>
> <filtering>true</filtering>
> <directory>
> src/main/webapp
> </directory>
> <includes>
> <include>**/*</include>
> </includes>
> </resource>
> </webResources>
> </configuration>
> </plugin>
> But when I run Maven, I get the following error:
> [INFO] Copy webapp webResources to [...]\client-framework-webapp-0.2-SNAPSHOT
> [INFO] ------------------------------------------------------------------------
> [ERROR] FATAL ERROR
> [INFO] ------------------------------------------------------------------------
> [INFO] org.apache.maven.project.MavenProject
> [INFO] ------------------------------------------------------------------------
> [INFO] Trace
> java.lang.ClassCastException: org.apache.maven.project.MavenProject
> at org.codehaus.plexus.util.InterpolationFilterReader.read(InterpolationFilterReader.java:269)
> at org.codehaus.plexus.util.InterpolationFilterReader.read(InterpolationFilterReader.java:162)
> at java.io.Reader.read(Reader.java:100)
> at org.codehaus.plexus.util.IOUtil.copy(IOUtil.java:212)
> at org.codehaus.plexus.util.IOUtil.copy(IOUtil.java:200)
> at org.apache.maven.plugin.war.AbstractWarMojo.copyFilteredFile(AbstractWarMojo.java:921)
> at org.apache.maven.plugin.war.AbstractWarMojo.copyResources(AbstractWarMojo.java:415)
> at org.apache.maven.plugin.war.AbstractWarMojo.buildWebapp(AbstractWarMojo.java:518)
> at org.apache.maven.plugin.war.AbstractWarMojo.buildExplodedWebapp(AbstractWarMojo.java:347)
> at org.apache.maven.plugin.war.WarMojo.performPackaging(WarMojo.java:164)
> at org.apache.maven.plugin.war.WarMojo.execute(WarMojo.java:130)
> 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:324)
> 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)
> [INFO] ------------------------------------------------------------------------
> Any idea?
> Thanks,
> Ludovic
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