If I look in log for Eclipse, I look Exception for Maven Editor :
    
    !ENTRY org.eclipse.ui 4 0 2011-06-25 07:52:32.508
    !MESSAGE Unable to create editor ID
    org.maven.ide.eclipse.editor.MavenPomEditor: No editor descriptor
    for id org.maven.ide.eclipse.editor.MavenPomEditor
    !STACK 1
    org.eclipse.ui.PartInitException: No editor descriptor for id
    org.maven.ide.eclipse.editor.MavenPomEditor
        at
org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:601)
        at
org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:465)
    
    In this case the problem exist for maven.
    
    That all mein Plugin:
    
      Android DDMS    11.0.0.v201105251008-128486   
    com.android.ide.eclipse.ddms.feature.group    The Android Open
    Source Project
      Android Development Tools    11.0.0.v201105251008-128486   
    com.android.ide.eclipse.adt.feature.group    The Android Open Source
    Project
      Android Hierarchy Viewer    11.0.0.v201105251008-128486   
    com.android.ide.eclipse.hierarchyviewer.feature.group    The Android
    Open Source Project
      Android Traceview    11.0.0.v201105251008-128486   
    com.android.ide.eclipse.traceview.feature.group    The Android Open
    Source Project
      Checkstyle configuration plugin for M2Eclipse   
    1.0.0.201106081737   
    com.basistech.m2e.code.quality.checkstyle.feature.feature.group   
    null
      Code Analysis Plugin    1.2.0   
    de.fh.reutlingen.cap.feature.group    Johannes Schneider | Matthias
    Mergenthaler
      Dali Java Persistence Tools - JPA Diagram Editor   
    1.0.0.v201105070000-4--9oB5885I8G5556   
    org.eclipse.jpt.jpadiagrameditor.feature.feature.group    Eclipse
    Web Tools Platform
      Eclipse Checkstyle Plug-in    5.3.0.201012121300   
    net.sf.eclipsecs.feature.group    
http://eclipse-cs.sf.net/
      Eclipse Checkstyle Plug-in 4.4.x -> 5.0.0 Migration
    (Optional)    5.3.0.201012121300   
    net.sf.eclipsecs.migration.feature.group   
    
http://eclipse-cs.sf.net/
      Eclipse EGit    1.0.0.201106090707-r   
    org.eclipse.egit.feature.group    Eclipse EGit
      Eclipse IDE for Java EE Developers    1.4.0.20110615-0550   
    epp.package.jee    null
      Eclipse JGit    1.0.0.201106090707-r   
    org.eclipse.jgit.feature.group    Eclipse JGit
      Eclipse SDK    3.7.0.I20110613-1736    org.eclipse.sdk.ide    null
      EclipseRunnerFeature    1.2.0   
    EclipseRunnerFeature.feature.group    EclipseRunner
      Embedded Maven Runtime 3.0.3    1.0.1.201106221106   
    org.sonatype.m2e.maven.runtime.3.0.3.feature.group    SONATYPE
      Find/Replace Bar    1.0.17.201105141536   
    FindReplaceBarFeature.feature.group    Sandip Chitale
      FindBugs Feature    1.3.9.20090821   
    edu.umd.cs.findbugs.plugin.eclipse.feature.group    FindBugs Project
      JAutodoc    1.9.0    net.sf.jautodoc.feature.feature.group   
    Martin Kesting
      JD-Eclipse Plug-in    0.1.3   
    jd.edi.eclipse.feature.feature.group    Java Decompiler
      JVM Monitor    3.6.9.201103131317   
    org.jvmmonitor.feature.group    
JvmMonitor.org
      m2e - Maven Integration for Eclipse    1.0.0.20110607-2117   
    org.eclipse.m2e.feature.feature.group    
Eclipse.org - m2e
      m2e connector for antlr    0.13.0.20110622-1538   
    org.sonatype.m2e.antlr.feature.feature.group    Sonatype, Inc.
      m2e connector for build-helper-maven-plugin   
    0.13.0.20110622-1538   
    org.sonatype.m2e.buildhelper.feature.feature.group    Sonatype, Inc.
      m2e connector for modello    0.13.0.20110622-1538   
    org.sonatype.m2e.modello.feature.feature.group    Sonatype, Inc.
      Maven Integration for WTP (Optional)    0.13.0.20110623-0455   
    org.maven.ide.eclipse.wtp.feature.feature.group    Sonatype, Inc.
      Maven SCM Handler for EGit    0.13.0.201106031903   
    org.sonatype.m2e.egit.feature.feature.group    Sonatype, Inc.
      Maven SCM Handler for Subversive    0.13.0.201106211115   
    org.sonatype.m2e.subversive.feature.feature.group    Sonatype, Inc.
      ModelGoon    4.4.1    org.modelgoon.feature.group    ModelGoon
      MoreUnit Mock Support (beta)    2.4.2   
    org.moreunit.mock.feature.group    
moreunit.sourceforge.net
      MoreUnit Plug-In    2.4.2    org.moreunit.feature.group   
    
moreunit.sourceforge.net
      org.jfree.chart    1.0.0    org.jfree.chart.feature.group    null
      Path Tools Feature    1.0.60    PathToolsFeature.feature.group   
    Sandip V. Chitale
      PMD configuration plugin for M2Eclipse    1.0.0.201106081737   
    com.basistech.m2e.code.quality.pmd.feature.feature.group    null
      QuickREx    3.5.0   
    de.babe.eclipse.features.QuickREx.feature.group    Bastian
    Bergerhoff (
info@xxxxxxxxxxxxxxxxxxxxxx)
      QuickREx_I18N    1.0.0   
    de.babe.eclipse.features.QuickREx_I18N.feature.group    Bastian
    Bergerhoff (
info@xxxxxxxxxxxxxxxxxxxxxx)
      Spring IDE AJDT Developer Resources   
    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.ajdt.feature.source.feature.group   
    Spring IDE Developers
      Spring IDE AJDT Integration (optional)   
    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.ajdt.feature.feature.group    Spring
    IDE Developers
      Spring IDE AOP Developer Resources   
    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.aop.feature.source.feature.group   
    Spring IDE Developers
      Spring IDE AOP Extension (optional)   
    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.aop.feature.feature.group    Spring
    IDE Developers
      Spring IDE Autowire Extension (optional)   
    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.autowire.feature.feature.group   
    featureProvider
      Spring IDE Autowire Extension Developer Resources   
    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.autowire.feature.source.feature.group   
    featureProvider
      Spring IDE Batch Developer Resources   
    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.batch.feature.source.feature.group   
    featureProvider
      Spring IDE Batch Extension (optional)   
    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.batch.feature.feature.group   
    featureProvider
      Spring IDE Core (required)    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.feature.feature.group    Spring IDE
    Developers
      Spring IDE Core Developer Resources   
    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.feature.source.feature.group   
    Spring IDE Developers
      Spring IDE Integration, Flex and Web Services Developer
    Resources    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.integration.feature.source.feature.group   
    featureProvider
      Spring IDE Integration, Flex and Web Services Extension
    (optional)    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.integration.feature.feature.group   
    featureProvider
      Spring IDE Mylyn Integration (optional)   
    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.mylyn.feature.feature.group   
    Spring IDE Developers
      Spring IDE Mylyn Integration Sources   
    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.mylyn.feature.source.feature.group   
    Spring IDE Developers
      Spring IDE OSGi Extension (optional)   
    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.osgi.feature.feature.group    Spring
    IDE Developers
      Spring IDE OSGi Extension Developer Resources   
    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.osgi.feature.source.feature.group   
    Spring IDE Developers
      Spring IDE Security Extension (optional)   
    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.security.feature.feature.group   
    featureProvider
      Spring IDE Security Extension Developer Resources   
    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.security.feature.source.feature.group   
    featureProvider
      Spring IDE Web Flow Extension (optional)   
    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.webflow.feature.feature.group   
    Spring IDE Developers
      Spring IDE Web Flow Extension Developer Resources   
    2.7.0.201106212206-CI-B1170   
    org.springframework.ide.eclipse.webflow.feature.source.feature.group   
    Spring IDE Developers
      SpringSource Tool Suite (required)   
    2.7.0.201106240726-SNAPSHOT    com.springsource.sts.feature.group   
    SpringSource
      SpringSource Tool Suite Tutorial Authoring   
    2.7.0.201106240726-SNAPSHOT   
    com.springsource.sts.authoring.feature.group    SpringSource
      SpringSource Tool Suite Tutorials   
    2.7.0.201106240726-SNAPSHOT   
    com.springsource.sts.tutorials.feature.group    SpringSource
      Subversive Revision Graph (Optional) (Incubation)   
    0.7.9.I20110602-1700   
    org.eclipse.team.svn.revision.graph.feature.group    
Eclipse.org
      Subversive SVN Connectors    2.2.2.I20110602-1700   
    org.polarion.eclipse.team.svn.connector.feature.group    Polarion
    Software
      Subversive SVN Integration for the Mylyn Project (Optional)
    (Incubation)    0.7.9.I20110602-1700   
    org.eclipse.team.svn.mylyn.feature.group    
Eclipse.org
      Subversive SVN JDT Ignore Extensions (Optional) (Incubation)   
    0.7.9.I20110602-1700   
    org.eclipse.team.svn.resource.ignore.rules.jdt.feature.group   
    
Eclipse.org
      Subversive SVN Team Provider (Incubation)   
    0.7.9.I20110602-1700    org.eclipse.team.svn.feature.group   
    
Eclipse.org
      SVNKit 1.2.2 Implementation (Optional)    2.2.2.I20110602-1700   
    org.polarion.eclipse.team.svn.connector.svnkit15.feature.group   
    Polarion Software
      SVNKit 1.3.3 Implementation (Optional)    2.2.2.I20110602-1700   
    org.polarion.eclipse.team.svn.connector.svnkit16l.feature.group   
    Polarion Software
      SVNKit 1.3.5 Implementation (Optional)    2.2.2.I20110602-1700   
    org.polarion.eclipse.team.svn.connector.svnkit16.feature.group   
    Polarion Software
      TestNG    6.0.1.20110621_1348   
    org.testng.eclipse.feature.group    Cedric Beust
      UI Commons    1.1.7.201105091728   
    org.maven.ide.eclipse.commons.feature.feature.group    Sonatype,
    Inc.
      WAR Products (Incubation)    0.1.0.201106071417   
    org.eclipse.libra.warproducts.feature.feature.group    Eclipse Web
    Tools Platform
      XPath-Developer    1.0.1   
    de.babe.eclipse.features.XPathDeveloper.feature.group    Bastian
    Bergerhoff (
info@xxxxxxxxxxxxxxxxxxxxxx)
    
    Alexander Vaysberg
    Am 25.06.11 13:41, schrieb Pascal Rapicault:
    
      Please report the specific problem with Spring IDE to the Spring team.
      
        Problem number 2:  Maven and Spring IDE. 
I installed Spring IDE 2.7 with the Maven support in Eclipse 3.7 and M2E 
was gone :(. 
So wait and stay on Eclipse 3.6, or other Java tool 
use.
Alexander Vaysberg
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