[jira] [Commented] (MSHADE-215) Failed to execute goal org.apache.maven.plugins:maven-shade-plugin:2.3:shade (default) on project mshade171-ui: Error creating shaded jar: /tmp/shade/mshade171-base/target/classes (Ist ein Verzeichnis) -> [Help 1]

["Elliotte Rusty Harold (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MSHADE-215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16996823#comment-16996823 ] 

Elliotte Rusty Harold commented on MSHADE-215:
----------------------------------------------

suspect this is still the case

> Failed to execute goal org.apache.maven.plugins:maven-shade-plugin:2.3:shade (default) on project mshade171-ui: Error creating shaded jar: /tmp/shade/mshade171-base/target/classes (Ist ein Verzeichnis) -> [Help 1]
> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: MSHADE-215
>                 URL: https://issues.apache.org/jira/browse/MSHADE-215
>             Project: Maven Shade Plugin
>          Issue Type: Bug
>    Affects Versions: 2.4.2
>         Environment: Linux Ubuntu, Java 1.8.0_66, Maven 3.3.9
>            Reporter: Dominik Stadler
>            Priority: Major
>         Attachments: MSHADE-171.zip
>
>
> MSHADE-171 reported a problem with locked files when running on Windows. The same sample project fails for me with a different error message when I run the steps "package test" on Linux. I tried using the latest 2.4.3-SNAPSHOT version which should have fixes for MSHADE-171.
> The error-output is listed below.
> Calling "mvn package" or "mvn test" works, it only fails if both goals/phases are executed in one command.
> I tried to debug this and found that in the error-case in the code at {{ShadeMojo.processArtifactSelectors()}} the call to {{project.getArtifacts()}} returns an Artifact which has the file-path to the {{classes}} directory, but has {{Artifact.getType() == "jar"}}.
> It seems running the test goal/phase adds this Artifact and the shade-plugin does not handle this correctly as it expects all Artifacts to be jars, not directories.
> Let me know if I can provide more information. I am attaching the same sample-project that was used in MSHADE-171 as it can be used to reproduce this problem as well.
> {noformat}
> [INFO] Reactor Summary:
> [INFO] 
> [INFO] mshade171 ......................................... SUCCESS [0.003s]
> [INFO] mshade171-base .................................... SUCCESS [1.596s]
> [INFO] mshade171-ui ...................................... FAILURE [0.697s]
> [INFO] ------------------------------------------------------------------------
> [INFO] BUILD FAILURE
> [INFO] ------------------------------------------------------------------------
> [INFO] Total time: 2.488s
> [INFO] Finished at: Fri Nov 27 21:24:34 CET 2015
> [INFO] Final Memory: 10M/211M
> [INFO] ------------------------------------------------------------------------
> [ERROR] Failed to execute goal org.apache.maven.plugins:maven-shade-plugin:2.4.3-SNAPSHOT:shade (default) on project mshade171-ui: Error creating shaded jar: /tmp/shade/mshade171-base/target/classes (Ist ein Verzeichnis) -> [Help 1]
> org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-shade-plugin:2.4.3-SNAPSHOT:shade (default) on project mshade171-ui: Error creating shaded jar: /tmp/shade/mshade171-base/target/classes (Ist ein Verzeichnis)
>         at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:217)
>         at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
>         at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
>         at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
>         at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
>         at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
>         at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
>         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
>         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
>         at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
>         at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:497)
>         at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
>         at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
>         at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
>         at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
> Caused by: org.apache.maven.plugin.MojoExecutionException: Error creating shaded jar: /tmp/shade/mshade171-base/target/classes (Ist ein Verzeichnis)
>         at org.apache.maven.plugins.shade.mojo.ShadeMojo.execute(ShadeMojo.java:539)
>         at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
>         at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
>         ... 19 more
> Caused by: java.io.FileNotFoundException: /tmp/shade/mshade171-base/target/classes (Ist ein Verzeichnis)
>         at java.util.zip.ZipFile.open(Native Method)
>         at java.util.zip.ZipFile.<init>(ZipFile.java:219)
>         at java.util.zip.ZipFile.<init>(ZipFile.java:149)
>         at java.util.jar.JarFile.<init>(JarFile.java:166)
>         at java.util.jar.JarFile.<init>(JarFile.java:130)
>         at org.apache.maven.plugins.shade.DefaultShader.newJarFile(DefaultShader.java:351)
>         at org.apache.maven.plugins.shade.DefaultShader.goThroughAllJarEntriesForManifestTransformer(DefaultShader.java:261)
>         at org.apache.maven.plugins.shade.DefaultShader.shade(DefaultShader.java:98)
>         at org.apache.maven.plugins.shade.mojo.ShadeMojo.execute(ShadeMojo.java:454)
>         ... 21 more
> [ERROR] 
> [ERROR] Re-run Maven using the -X switch to enable full debug logging.
> [ERROR] 
> [ERROR] For more information about the errors and possible solutions, please read the following articles:
> [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
> [ERROR] 
> [ERROR] After correcting the problems, you can resume the build with the command
> [ERROR]   mvn <goals> -rf :mshade171-ui
> {noformat}



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