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Posted to issues@maven.apache.org by "Gili (JIRA)" <ji...@codehaus.org> on 2012/02/19 22:34:03 UTC

[jira] (MNG-5248) NPE at EnvironmentUtils.toStrings()

Gili created MNG-5248:
-------------------------

             Summary: NPE at EnvironmentUtils.toStrings()
                 Key: MNG-5248
                 URL: https://jira.codehaus.org/browse/MNG-5248
             Project: Maven 2 & 3
          Issue Type: Bug
          Components: Plugin API
    Affects Versions: 3.0.4
         Environment: Ubuntu 10.04
            Reporter: Gili


ProcessBuilder.environment() may contain keys with a null value. In my case "INSIDE_NAUTILUS_PYTHON=" was defined. If maven-exec-plugin is invoked with the same environment variables, the following exception is thrown:

{code}
java.lang.NullPointerException
	at org.apache.commons.exec.environment.EnvironmentUtils.toStrings(EnvironmentUtils.java:66)
	at org.apache.commons.exec.launcher.Java13CommandLauncher.exec(Java13CommandLauncher.java:56)
	at org.apache.commons.exec.DefaultExecutor.launch(DefaultExecutor.java:254)
	at org.apache.commons.exec.DefaultExecutor.executeInternal(DefaultExecutor.java:319)
	at org.apache.commons.exec.DefaultExecutor.execute(DefaultExecutor.java:160)
	at org.codehaus.mojo.exec.ExecMojo.executeCommandLine(ExecMojo.java:610)
	at org.codehaus.mojo.exec.ExecMojo.execute(ExecMojo.java:352)
{code}

Expected behavior: EnvironmentUtils.toStrings() should be able to handle the Map returned by ProcessBuilder with the same interpretation as it treats null keys and values.

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[jira] (MNG-5248) NPE at EnvironmentUtils.toStrings()

Posted by "Gili (JIRA)" <ji...@codehaus.org>.
    [ https://jira.codehaus.org/browse/MNG-5248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=292157#comment-292157 ] 

Gili commented on MNG-5248:
---------------------------

I stand corrected. It seems the environment variable has a value of an empty string (not null). Somehow, this gets translates to null along the path from maven-exec-plugin and org.apache.commons.exec.environment.EnvironmentUtils.toStrings().
                
> NPE at EnvironmentUtils.toStrings()
> -----------------------------------
>
>                 Key: MNG-5248
>                 URL: https://jira.codehaus.org/browse/MNG-5248
>             Project: Maven 2 & 3
>          Issue Type: Bug
>          Components: Plugin API
>    Affects Versions: 3.0.4
>         Environment: Ubuntu 10.04
>            Reporter: Gili
>
> ProcessBuilder.environment() may contain keys with a null value. In my case "INSIDE_NAUTILUS_PYTHON=" was defined. If maven-exec-plugin is invoked with the same environment variables, the following exception is thrown:
> {code}
> java.lang.NullPointerException
> 	at org.apache.commons.exec.environment.EnvironmentUtils.toStrings(EnvironmentUtils.java:66)
> 	at org.apache.commons.exec.launcher.Java13CommandLauncher.exec(Java13CommandLauncher.java:56)
> 	at org.apache.commons.exec.DefaultExecutor.launch(DefaultExecutor.java:254)
> 	at org.apache.commons.exec.DefaultExecutor.executeInternal(DefaultExecutor.java:319)
> 	at org.apache.commons.exec.DefaultExecutor.execute(DefaultExecutor.java:160)
> 	at org.codehaus.mojo.exec.ExecMojo.executeCommandLine(ExecMojo.java:610)
> 	at org.codehaus.mojo.exec.ExecMojo.execute(ExecMojo.java:352)
> {code}
> Expected behavior: EnvironmentUtils.toStrings() should be able to handle the Map returned by ProcessBuilder with the same interpretation as it treats null keys and values.

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