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Bug 321909

Summary:	NPE when running any Buckminster action
Product:	z_Archived	Reporter:	Axel Guckelsberger <info>
Component:	Buckminster	Assignee:	buckminster.core-inbox <buckminster.core-inbox>
Status:	RESOLVED WORKSFORME	QA Contact:
Severity:	major
Priority:	P3	CC:	thomas
Version:	unspecified
Target Milestone:	---
Hardware:	PC
OS:	Windows Vista
Whiteboard:

Description Axel Guckelsberger

2010-08-05 14:32:29 EDT

Build Identifier: I20100608-0911

If I call "site.p2" or even "buckminster.clean" on my site feature project I get the following exception.


org.eclipse.core.runtime.CoreException: BUILD FAILED
 at org.eclipse.buckminster.ant.AntRunner.handleInvocationTargetException(AntRunner.java:167)
 at org.eclipse.buckminster.ant.AntRunner.run(AntRunner.java:322)
 at org.eclipse.buckminster.ant.actor.AntActor.internalPerform(AntActor.java:254)
 at org.eclipse.buckminster.core.actor.AbstractActor.perform(AbstractActor.java:186)
 at org.eclipse.buckminster.core.internal.actor.PerformManager$DirectActionInvocation.execute(PerformManager.java:143)
 at org.eclipse.buckminster.core.internal.actor.PerformManager.internalPerform(PerformManager.java:454)
 at org.eclipse.buckminster.core.internal.actor.PerformManager.perform(PerformManager.java:293)
 at org.eclipse.buckminster.pde.internal.actor.FragmentsActor.internalPerform(FragmentsActor.java:190)
 at org.eclipse.buckminster.core.actor.AbstractActor.perform(AbstractActor.java:186)
 at org.eclipse.buckminster.core.internal.actor.PerformManager$DirectActionInvocation.execute(PerformManager.java:143)
 at org.eclipse.buckminster.core.internal.actor.PerformManager.internalPerform(PerformManager.java:454)
 at org.eclipse.buckminster.core.internal.actor.PerformManager.perform(PerformManager.java:293)
 at org.eclipse.buckminster.core.internal.actor.PerformManager.perform(PerformManager.java:305)
 at org.eclipse.buckminster.ui.InvokeAction$ActionJob.runInWorkspace(InvokeAction.java:81)
 at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38)
 at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Caused by: java.lang.NullPointerException
 at java.util.Hashtable.put(Unknown Source)
 at org.apache.tools.ant.PropertyHelper.setUserProperty(PropertyHelper.java:377)
 at org.apache.tools.ant.Project.setUserProperty(Project.java:543)
 at org.eclipse.ant.internal.core.ant.InternalAntRunner.setProperties(InternalAntRunner.java:233)
 at org.eclipse.ant.internal.core.ant.InternalAntRunner.run(InternalAntRunner.java:593)
 at org.eclipse.ant.internal.core.ant.InternalAntRunner.run(InternalAntRunner.java:495)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
 at java.lang.reflect.Method.invoke(Unknown Source)
 at org.eclipse.buckminster.ant.AntRunner.run(AntRunner.java:318)
 ... 14 more


Reproducible: Always

Comment 1 Thomas Hallgren

2010-08-05 17:25:49 EDT

This sounds like a duplicate of bug 320586. Can you please try with the latest Buckminster from http://download.eclipse.org/tools/buckminster/headless-3.6 (or updates-3.6 if using the IDE) and see if the problem persists?

Comment 2 Axel Guckelsberger

2010-08-05 17:33:14 EDT

Hi Thomas,

I already use the latest version. Maybe there is anything I can look for in the properties file?

Comment 3 Thomas Hallgren

2010-08-05 17:43:26 EDT

Apparently ant uses Hashtable's rather then HashMap's. A Hashtable cannot accept a null value. This means that the fix in bug 320586 is no good since it will pass a null property to Ant.

Your problem must somehow stem from a property with a null value.

Comment 4 Axel Guckelsberger

2010-08-14 04:57:23 EDT

Hi Thomas.

The property which is null is: user_homedir.
Any idea how to set this?

Greetings
Axel

Comment 5 Thomas Hallgren

2010-08-14 05:05:15 EDT

No, never seen that. The property that's normally used for the users home directory is the Java System property ${user.home}.

Comment 6 Axel Guckelsberger

2010-08-14 08:52:00 EDT

added to my property file:

user_homedir=${user.home}

and it works.

Do not know why this is required now though :-)