NullPointerException after adding new dependency

Do you have more then one remote repository or declared mirrors in your settings.xml? I don't see /MMArchive/pom.xml in Maven central repository.

Can you reproduce that every time or it just happens once? If it happens every time, please attach test project and settings.xml that would allow to reproduce this issue.

I am not sure why command line build is needed. Project/Clean does trigger refresh of the Maven classpath container and you can also reindex local repository from the Window / Preferences / Maven.

MMArchive is the name of my eclipse project.

The error is reproducable. I will try to add a testcase for it.

When I hit the reindex button in the maven preferences, I get the following error message:

An internal error occurred during: "Indexing local".

java.lang.NullPointerException
at org.apache.lucene.index.FieldsReader.doc(FieldsReader.java:88)
at org.apache.lucene.index.SegmentReader.document(SegmentReader.java:284)
at org.maven.ide.eclipse.index.Indexer$IndexerModifierAdapter.<init>(Indexer.java:529)
at org.maven.ide.eclipse.index.Indexer.createIndexerAdapter(Indexer.java:246)
at org.maven.ide.eclipse.index.Indexer.reindex(Indexer.java:253)
at org.maven.ide.eclipse.index.IndexerJob.run(IndexerJob.java:63)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)

The stack trace you posted does not match line numbers from the 0.0.10 release. Are you sure you are using the last version from the update site at http://m2eclipse.codehaus.org/update/

You may want to uninstall plugin from the Help / Software Updates / Manage Configuration and install it again.

Yes I am sure...installed it three days ago.

I also uninstalled the 0.0.9 version with 'Manage Configuration'.

I don't know what to say. As I said, you are running something that is mot in 0.0.10 release. Maybe there are some stale jars or some other garbage. This is quite basic functionality and no one reported such errors on 0.0.10 release.

By the way, what Eclipse version you are using and what Java version you are Eclipse on?

Eclipse 3.2.2, Java 1.6

Perhaps it's a classpath issue?! There is a lucence-core-2.0.0.jar in plugins/org.maven.ide.eclipse_0.0.10.jar/lib. And there is also a directory named org.apache.lucene_1.4.103.v20060601 in the plugins directory.

Thanks for your help.

Very unlikely. This been like this since beginning and plugin is using own Lucene jar instead of importing bundle from Eclipse.

So, all I can suggest is to delete all org.maven.ide.eclipse* jars and folders in your Eclipse install (main and external locations), then run Eclipse with -clean option and install plugin again from the update site.

Unfortunately this doesn't help. I also tried to remove the old lucene version but then whole eclipse isn't running:

!SESSION 2007-02-19 13:06:35.687 -----------------------------------------------
eclipse.buildId=M20060629-1905
java.version=1.6.0
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=de_DE
Command-line arguments: -os win32 -ws win32 -arch x86 -clean

!ENTRY org.eclipse.core.runtime 2007-02-19 13:06:40.859
!MESSAGE Product org.eclipse.sdk.ide could not be found.

!ENTRY org.eclipse.osgi 4 0 2007-02-19 13:06:40.890
!MESSAGE Application error

!STACK 1
java.lang.RuntimeException: No application id has been found.
at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:56)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177)
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:597)
at org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)

The only suggestion I can give you is to try to install fresh copy of Eclipse and then try this plugin up there.

PS: haven't I told you that Maven plugin is NOT using Lucene plugin from Eclipse?

Clean installation doesn't help either.

Delete the folder \.metadata\.plugins\org.maven.ide.eclipse in your workspace!

Interesting. What version you have used before 0.0.10?

version 0.0.9