An error occurred attempting to copy a file to the JNLP output directory.
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Key: MWEBSTART-143
URL: http://jira.codehaus.org/browse/MWEBSTART-143
Project: Maven 2.x Webstart Plugin
Issue Type: Bug
Components: jnlp-download-servlet
Affects Versions: 1.0-alpha-2
Environment: Windows XP, JDK 1.6.0_17
Reporter: Joseph Hitt
When generating output in the target directory during either "mvn clean
install" or "mvn clean" followed by "mvn install", the plexus FileUtils class
evaluates false for both isDirectory AND isFile on one of the "unprocessed_"
jars. This causes that code to throw IOException: Unknown file type. I
believe this has to do with the file being non-existent at that point in the
process. If I run "mvn install" after the failure, the build succeeds. This
may be some multithreading or timing issue, not sure. I would love to submit a
patch, but when I try to debug it with mvnDebug, it just works (the file exists
at that point due to slower timing).
<code>
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] An error occurred attempting to copy a file to the JNLP output directory.
Embedded error: Unknown file type:
C:\dev\Newton\trunk\Services\PdfMappingTool\target\jnlp\unprocessed_openjpa-all-2.0.0-M3.jar
[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.lifecycle.LifecycleExecutionException: An error occurred
attempting to copy a file to the JNLP output directory.
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:719)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:556)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:535)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:387)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:348)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:180)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
at
org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
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:597)
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: org.apache.maven.plugin.MojoExecutionException: An error occurred
attempting to copy a file to the JNLP output directory.
at
org.codehaus.mojo.webstart.JnlpDownloadServletMojo.copyWorkingDirToOutputDir(JnlpDownloadServletMojo.java:732)
at
org.codehaus.mojo.webstart.JnlpDownloadServletMojo.execute(JnlpDownloadServletMojo.java:148)
at
org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
... 17 more
Caused by: java.io.IOException: Unknown file type:
C:\dev\Newton\trunk\Services\PdfMappingTool\target\jnlp\unprocessed_openjpa-all-2.0.0-M3.jar
at
org.codehaus.plexus.util.FileUtils.copyDirectoryStructure(FileUtils.java:1846)
at
org.codehaus.plexus.util.FileUtils.copyDirectoryStructure(FileUtils.java:1755)
at
org.codehaus.mojo.webstart.JnlpDownloadServletMojo.copyWorkingDirToOutputDir(JnlpDownloadServletMojo.java:728)
... 20 more
</code>
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