Eclipse startup error

Question

Today when I started eclipse I got the following error message:

An internal error occurred during: "Updating indexes". Java heap space

When I checked the log, there is this exception:

!ENTRY org.eclipse.core.jobs 4 2 2011-06-14 13:44:26.546
!MESSAGE An internal error occurred during: "Updating indexes".
!STACK 0
java.lang.OutOfMemoryError: Java heap space
at org.sonatype.nexus.index.updater.IndexDataReader.readUTF(IndexDataReader.java:132)
at org.sonatype.nexus.index.updater.IndexDataReader.readField(IndexDataReader.java:122)
at org.sonatype.nexus.index.updater.IndexDataReader.readDocument(IndexDataReader.java:96)
at org.sonatype.nexus.index.updater.IndexDataReader.readIndex(IndexDataReader.java:63)
at org.sonatype.nexus.index.updater.DefaultIndexUpdater.unpackIndexData(DefaultIndexUpdater.java:564)
at org.sonatype.nexus.index.updater.DefaultIndexUpdater.loadIndexDirectory(DefaultIndexUpdater.java:252)
at org.sonatype.nexus.index.updater.DefaultIndexUpdater.access$300(DefaultIndexUpdater.java:74)
at org.sonatype.nexus.index.updater.DefaultIndexUpdater$LuceneIndexAdaptor.setIndexFile(DefaultIndexUpdater.java:815)
at org.sonatype.nexus.index.updater.DefaultIndexUpdater.fetchAndUpdateIndex(DefaultIndexUpdater.java:995)
at org.sonatype.nexus.index.updater.DefaultIndexUpdater.fetchAndUpdateIndex(DefaultIndexUpdater.java:159)
at org.maven.ide.eclipse.internal.index.NexusIndexManager.updateRemoteIndex(NexusIndexManager.java:1085)
at org.maven.ide.eclipse.internal.index.NexusIndexManager.updateIndex(NexusIndexManager.java:1025)
at org.maven.ide.eclipse.internal.index.NexusIndexManager$1.run(NexusIndexManager.java:632)
at org.maven.ide.eclipse.internal.index.IndexUpdaterJob.run(IndexUpdaterJob.java:71)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
!SESSION 2011-06-14 13:46:30.734 -----------------------------------------------
eclipse.buildId=M20100909-0800
java.version=1.6.0_23
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_GB
Framework arguments:  -product org.eclipse.epp.package.jee.product
Command-line arguments:  -os win32 -ws win32 -arch x86 -product org.eclipse.epp.package.jee.product

I tried the following with no success:

• Increase the memory in the .ini file in eclipse:

  -Xms128m
  -Xmx512m
  -XX:MaxPermSize=256m
  

• Create the environment variable "MAVEN_OPTS:-Xmx256m"

• Delete the ~/.cache/m2e directoy

Does anyone have another idea?

Answer 1

Are there other m2e cache directories? Some bug reports on this issue propose to delete ~/.m2/repository/.cache/m2e. Generally, for me it seems to be a maven / nexus problem (maybe m2e).