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From spark404 <...@git.apache.org>
Subject [GitHub] cxf-xjc-utils pull request: getFile() can return a null, which cau...
Date Thu, 16 Apr 2015 08:41:03 GMT
GitHub user spark404 opened a pull request:

    https://github.com/apache/cxf-xjc-utils/pull/1

    getFile() can return a null, which causes an NPE

    While building CXF i encountered an NPE (see below.) It appears to be possible for org.apache.maven.artifact.Artifact.getFile()
to return a null, which will trigger the NPE in AbstractXSDToJavaMojo.getArguments. It should
throw a MojoExecutionException telling the user that it was unable to resolve a dependency.
    
    ```
    [ERROR] Failed to execute goal org.apache.cxf:cxf-xjc-plugin:3.0.2:xsdtojava (generate-sources)
on project cxf-core: Could not download extension artifact: NullPointerException -> [Help
1]
    org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.cxf:cxf-xjc-plugin:3.0.2:xsdtojava
(generate-sources) on project cxf-core: Could not download extension artifact
    	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:216)
    	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:116)
    	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
    	at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
    	at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
    	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
    	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
    	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
    	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:862)
    	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:286)
    	at org.apache.maven.cli.MavenCli.main(MavenCli.java:197)
    	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: Could not download extension
artifact
    	at org.apache.cxf.maven_plugin.AbstractXSDToJavaMojo.execute(AbstractXSDToJavaMojo.java:238)
    	at org.apache.cxf.maven_plugin.XSDToJavaMojo.execute(XSDToJavaMojo.java:41)
    	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
    	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208)
    	... 20 more
    Caused by: org.apache.maven.plugin.MojoExecutionException: Could not download extension
artifact
    	at org.apache.cxf.maven_plugin.AbstractXSDToJavaMojo.getArguments(AbstractXSDToJavaMojo.java:325)
    	at org.apache.cxf.maven_plugin.AbstractXSDToJavaMojo.run(AbstractXSDToJavaMojo.java:288)
    	at org.apache.cxf.maven_plugin.AbstractXSDToJavaMojo.execute(AbstractXSDToJavaMojo.java:225)
    	... 23 more
    Caused by: java.lang.NullPointerException
    	at org.apache.cxf.maven_plugin.AbstractXSDToJavaMojo.getArguments(AbstractXSDToJavaMojo.java:320)
    	... 25 more
    ```
    


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/spark404/cxf-xjc-utils NPE-fix

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/cxf-xjc-utils/pull/1.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1
    
----
commit 6c7770ccca2ccfaa752d469ae69252f57106f6d9
Author: Hugo Trippaers <hugo@apache.org>
Date:   2015-04-16T07:41:50Z

    Throw an exception when a dependency fails to resolve

----


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