You must use the id tag when listing developers in your POM, otherwise NPE if
using the changelog plugin
--------------------------------------------------------------------------------------------------------
Key: MPCHANGELOG-76
URL: http://jira.codehaus.org/browse/MPCHANGELOG-76
Project: maven-changelog-plugin
Type: Bug
Environment: OSX 10.4.3, java 1.4.2._09,
changelog-maven-plugin-2.0-beta-2-SNAPSHOT
Reporter: Julian Wood
If you don't add an id tag to your developer in your pom (which is not
required), and you configure a changelog report, then this piece of code will
generate an NPE, because you can't add a null key to a Hashtable:
ChangeLog.java
--
private Properties getUserList()
{
Properties userList = new Properties();
Developer developer = null;
for (Iterator i = getDevelopers().iterator(); i.hasNext();)
{
developer = (Developer) i.next();
userList.put(developer.getId(), developer.getName());
}
return userList;
}
--
[INFO] Generate "changelog" report.
[INFO] Generating changed sets xml to:
/Volumes/Jaguar/Users/woodj/Documents/pmgt/pmgt/trunk/pmgt-jar/target/changelog.xml
[INFO] SCM Working Directory:
/Volumes/Jaguar/Users/woodj/Documents/pmgt/pmgt/trunk/pmgt-jar/src/main/java
[INFO] SCM Command Line[0]: svn
[INFO] SCM Command Line[1]: log
[INFO] SCM Command Line[2]: -v
[INFO] SCM Command Line[3]: -r{2005-11-29}:{2005-10-29}
[INFO] ChangeSet between 2005-10-29 and 2005-11-29: 14 entries
[INFO]
----------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO]
----------------------------------------------------------------------------
[INFO] null
[INFO]
----------------------------------------------------------------------------
[DEBUG] Trace
java.lang.NullPointerException
at java.util.Hashtable.put(Hashtable.java:398)
at org.apache.maven.changelog.ChangeLog.getUserList(ChangeLog.java:530)
at
org.apache.maven.changelog.ChangeLog.replaceAuthorIdWithName(ChangeLog.java:541)
at org.apache.maven.changelog.ChangeLog.doExecute(ChangeLog.java:370)
at
org.apache.maven.changelog.ChangeLogReport.getChangeLog(ChangeLogReport.java:263)
at
org.apache.maven.changelog.ChangeLogReport.generateChangeSetsFromSCM(ChangeLogReport.java:218)
at
org.apache.maven.changelog.ChangeLogReport.getChangedSets(ChangeLogReport.java:198)
at
org.apache.maven.changelog.ChangeLogReport.executeReport(ChangeLogReport.java:173)
at
org.apache.maven.reporting.AbstractMavenReport.generate(AbstractMavenReport.java:117)
at
org.apache.maven.plugins.site.SiteMojo.generateReportsPages(SiteMojo.java:802)
at org.apache.maven.plugins.site.SiteMojo.execute(SiteMojo.java:301)
at
org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:412)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:519)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:469)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:448)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:301)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:268)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:137)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:322)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:115)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:249)
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:324)
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)
[INFO]
----------------------------------------------------------------------------
Not sure if this should be fixed in the docs, or in code.
Thanks,
Julian
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