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http://jira.codehaus.org/browse/MNG-4924?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Benjamin Bentmann closed MNG-4924.
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Resolution: Duplicate
Assignee: Benjamin Bentmann
>From your {{m2.conf}}:
{noformat}
set maven.home /home/vn39238/apache-maven-2.2.1
set MAVEN_OPTS="-Xmx1024m -XX:MaxPermSize=256m"
{noformat}
Those lines violate the syntax of the file. Furthermore, the environment
variable {{MAVEN_OPTS}} can't be set this way at all (btw. it was the cause for
the error reported as MNG-4865, not the solution). So just stop messing with
the Maven installation and live a happy life.
> Running Maven 2.2.1 in Linux gives nullpointerexception
> -------------------------------------------------------
>
> Key: MNG-4924
> URL: http://jira.codehaus.org/browse/MNG-4924
> Project: Maven 2 & 3
> Issue Type: Bug
> Components: Command Line
> Affects Versions: 2.2.1
> Environment: Linux, Maven 2.2.1, Hudson, 1.362, JDK 1.6.0_14,
> Reporter: Debanjan Chakraborty
> Assignee: Benjamin Bentmann
> Attachments: mvnjira.zip
>
>
> Our requirement is to be able to invoke application builds using Maven. The
> invokation would be done from Hudson (running as a webapp on Glassfish App
> Server). We have been able to get this config up and running in Windows XP
> using a sample project. However, when we try to do the same thing in Linux,
> we get the following stacktrace (both when I try to run MVN install from BASH
> as well as from Hudson Console). In fact, we get the stacktrace even when we
> try to verify the Maven version from command line (using "mvn --version")
> Started by user anonymous
> [workspace] $ /home/vn39238/apache-maven-2.2.1/bin/mvn -f
> /home/vn39238/PATWITHMAVEN/PATEJB/pom.xml install
> java.lang.NullPointerException: key can't be null
> at java.lang.System.checkKey(System.java:771)
> at java.lang.System.getProperty(System.java:647)
> at
> org.codehaus.classworlds.Configurator.configure(Configurator.java:240)
> at org.codehaus.classworlds.Launcher.configure(Launcher.java:156)
> at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:426)
> at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
> Finished: FAILURE
> The M2_HOME (/home/vn39238/apache-maven-2.2.1) and
> JAVA_HOME(/usr/java/jdk1.6.0_14) have been set in the environment. In spite
> of that, this error occurs.
> I was looking for some more info on troubleshooting and came across this
> thread:
> http://jira.codehaus.org/browse/MNG-4865?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
>
> However, in spite of doing this, the problem still remains. Attached is the
> m2.conf and the mvn file.
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