The exception you encountered occurs when an ant script tries to execute
<unzip src="${tmp.dir}/fop.zip" dest="${tmp.dir}/fop"/>
In your case the message indicates that ${tmp.dir}/fop.zip is
/Users/bouba/Documents/workspace_uima/PearPackagingMavenPlugin/target/temp/fop.zip
The message about a "negative seek" would seem to be caused by some corruption
in the downloaded file.
Can you see if you can unzip that file by itself?
If you can, then perhaps something has gone wrong with your "ant" installation?
If you cannot, try downloading it again and seeing if it can be unzipped.
it =
http://archive.apache.org/dist/xmlgraphics/fop/binaries/fop-${fop.version}-bin.zip
where ${fop.version} should be replaced with 0.95
HTH. -Marshall
Baptiste Gaillard wrote:
>
>
>
>
>
> Hi,
>
> I'm trying to compile the last version of the PearPackagingMavenPlugin, but
> it seems there is a problem on PDF generation...
>
> Here is the exception I've encountered:
> [ERROR] BUILD ERROR
> [INFO]
> ------------------------------------------------------------------------
> [INFO] An Ant BuildException has occured: The following error occurred while
> executing this line:
> /Users/bouba/Documents/workspace_uima/uima-docbook-tool/build/build-docbook.xml:174:
> The following error occurred while executing this line:
> /Users/bouba/Documents/workspace_uima/uima-docbook-tool/build/get-components.xml:79:
> Error while expanding
> /Users/bouba/Documents/workspace_uima/PearPackagingMavenPlugin/target/temp/fop.zip
> java.io.IOException: Negative seek offset
>
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Trace
> org.apache.maven.lifecycle.LifecycleExecutionException: An Ant BuildException
> has occured: The following error occurred while executing this line:
> /Users/bouba/Documents/workspace_uima/uima-docbook-tool/build/build-docbook.xml:174:
> The following error occurred while executing this line:
> /Users/bouba/Documents/workspace_uima/uima-docbook-tool/build/get-components.xml:79:
> Error while expanding
> /Users/bouba/Documents/workspace_uima/PearPackagingMavenPlugin/target/temp/fop.zip
> java.io.IOException: Negative seek offset
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:564)
> 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:334)
> at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:125)
> at org.apache.maven.cli.MavenCli.main(MavenCli.java:272)
> 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)
> Caused by: org.apache.maven.plugin.MojoExecutionException: An Ant
> BuildException has occured: The following error occurred while executing this
> line:
> /Users/bouba/Documents/workspace_uima/uima-docbook-tool/build/build-docbook.xml:174:
> The following error occurred while executing this line:
> /Users/bouba/Documents/workspace_uima/uima-docbook-tool/build/get-components.xml:79:
> Error while expanding
> /Users/bouba/Documents/workspace_uima/PearPackagingMavenPlugin/target/temp/fop.zip
> java.io.IOException: Negative seek offset
> at
> org.apache.maven.plugin.antrun.AbstractAntMojo.executeTasks(AbstractAntMojo.java:131)
> at
> org.apache.maven.plugin.antrun.AntRunMojo.execute(AntRunMojo.java:98)
> at
> org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:443)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:539)
> ... 16 more
> Caused by: The following error occurred while executing this line:
> /Users/bouba/Documents/workspace_uima/uima-docbook-tool/build/build-docbook.xml:174:
> The following error occurred while executing this line:
> /Users/bouba/Documents/workspace_uima/uima-docbook-tool/build/get-components.xml:79:
> Error while expanding
> /Users/bouba/Documents/workspace_uima/PearPackagingMavenPlugin/target/temp/fop.zip
> java.io.IOException: Negative seek offset
> at
> org.apache.tools.ant.ProjectHelper.addLocationToBuildException(ProjectHelper.java:508)
> at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:418)
> at
> org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
> 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.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
> at org.apache.tools.ant.Task.perform(Task.java:348)
> at org.apache.tools.ant.Target.execute(Target.java:357)
> at
> org.apache.maven.plugin.antrun.AbstractAntMojo.executeTasks(AbstractAntMojo.java:118)
> ... 19 more
> Caused by:
> /Users/bouba/Documents/workspace_uima/uima-docbook-tool/build/build-docbook.xml:174:
> The following error occurred while executing this line:
> /Users/bouba/Documents/workspace_uima/uima-docbook-tool/build/get-components.xml:79:
> Error while expanding
> /Users/bouba/Documents/workspace_uima/PearPackagingMavenPlugin/target/temp/fop.zip
> java.io.IOException: Negative seek offset
> at
> org.apache.tools.ant.ProjectHelper.addLocationToBuildException(ProjectHelper.java:508)
> at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:418)
> at
> org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
> at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at
> org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
> at org.apache.tools.ant.Task.perform(Task.java:348)
> at org.apache.tools.ant.Target.execute(Target.java:357)
> at org.apache.tools.ant.Target.performTasks(Target.java:385)
> at
> org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
> at
> org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
> at org.apache.tools.ant.Project.executeTargets(Project.java:1189)
> at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:416)
> ... 28 more
> Caused by:
> /Users/bouba/Documents/workspace_uima/uima-docbook-tool/build/get-components.xml:79:
> Error while expanding
> /Users/bouba/Documents/workspace_uima/PearPackagingMavenPlugin/target/temp/fop.zip
> java.io.IOException: Negative seek offset
> at org.apache.tools.ant.taskdefs.Expand.expandFile(Expand.java:148)
> at org.apache.tools.ant.taskdefs.Expand.execute(Expand.java:107)
> at
> org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
> at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at
> org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
> at org.apache.tools.ant.Task.perform(Task.java:348)
> at org.apache.tools.ant.Target.execute(Target.java:357)
> at org.apache.tools.ant.Target.performTasks(Target.java:385)
> at
> org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
> at
> org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
> at org.apache.tools.ant.Project.executeTargets(Project.java:1189)
> at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:416)
> ... 40 more
> Caused by: java.io.IOException: Negative seek offset
> at java.io.RandomAccessFile.seek(Native Method)
> at
> org.apache.tools.zip.ZipFile.positionAtCentralDirectory(ZipFile.java:403)
> at
> org.apache.tools.zip.ZipFile.populateFromCentralDirectory(ZipFile.java:271)
> at org.apache.tools.zip.ZipFile.<init>(ZipFile.java:152)
> at org.apache.tools.ant.taskdefs.Expand.expandFile(Expand.java:137)
> ... 53 more
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Total time: 5 minutes 36 seconds
> [INFO] Finished at: Sun Jul 12 19:45:08 CEST 2009
> [INFO] Final Memory: 18M/33M
> [INFO]
> ------------------------------------------------------------------------
>
> If I delete the section corresponding to documentation generation everything
> is good.
> I'm using Maven 2.2.0, Java 1.5.0_19 on MacOS X Tiger, do you know why this
> exception appear ?
> And, I have an other question, why is the PearPackagingMavenPlugin named
> PearPackagingMavenPlugin ? I think it could be better if the plugin name
> respect the Maven plugin conventions as mentioned here
> http://maven.apache.org/guides/plugin/guide-java-plugin-development.html.
>
> " The "maven-$name-plugin" and "$name-maven-plugin"
> artifactId patterns are treated in a special way. If no plugin matches
> the artifactId specified on the command line, Maven will try expanding
> the artifactId to these patterns in that order. So in the case of our
> example, you can use "mvn sample.plugin:hello:sayhi" to run your plugin.
> Note: these 2 patterns are used respectively by the official Maven 2 plugins
> and the Mojo project plugins. "
>
> So I think an artifactId named "pear-packaging-maven-plugin" or
> "maven-pear-packaging-plugin" should be used.
>
> Thanks,
>
> Baptiste Gaillard
>
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