Heri Bender [http://community.jboss.org/people/hbender] replied to the discussion "An internal error occurred during: "Building workspace"." To view the discussion, visit: http://community.jboss.org/message/549064#549064 -------------------------------------------------------------- Hi Denis I'm working with JBoss DevStudio 3.0.0.v201003100055R-H50-GA which integrates the JBoss Tools. But I'm not quite sure which version of the JBoss Tools is used. I see on the Plugin details pane several versions: 1.1.0, 3.1.0, 2.1.0, but the build string is always "x.x.x.v201003100055R-H50-GA". I find the IDE very unstable. One example (I could tell about some more if you are interested): Every second start of the IDE a NullPointer happens somewhere in the deeps ofeclipse: java.lang.NullPointerException at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:280) at org.eclipse.emf.common.notify.impl.NotifyingListImpl.dispatchNotification(NotifyingListImpl.java:267) at org.eclipse.jem.internal.util.emf.workbench.ProjectResourceSetImpl$SynchronizedResourcesEList.dispatchNotification(ProjectResourceSetImpl.java:335) at org.eclipse.emf.common.notify.impl.NotifyingListImpl.addUnique(NotifyingListImpl.java:300) at org.eclipse.emf.common.util.AbstractEList.add(AbstractEList.java:307) ... (many more). When this happens one cannot work with the IDE anymore because after a couple of clicks another Nullpointer occurs, and so on. One has to restart eclipse. You spoke of a version 3.1.1. of the JBoss tools. Can I upgrade my DevStudio-Bundle with this newer version? Is there a chance to have a more stable IDE? I'm unsure because there are many other JBoss-Plugins (Struts, Hibernate, etc.) which have different versions but all the same build string. Thanks for advice. Heri -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/549064#549064] Start a new discussion in JBoss Tools at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]