Getting this stacktrace when enabling org.eclipse.wst.server.core tracing. Seems like a boolean property is read as a string...

org.eclipse.wst.server.core SEVERE 28/09/07 15:25.53.713 Error calling delegate setupLaunchConfiguration() JBoss 4.2 Server
org.eclipse.debug.core.DebugException: Attribute jboss.defaults.been.set is not of type java.lang.String.
at org.eclipse.debug.internal.core.LaunchConfigurationInfo.getStringAttribute(LaunchConfigurationInfo.java:144)
at org.eclipse.debug.internal.core.LaunchConfiguration.getAttribute(LaunchConfiguration.java:336)
at org.jboss.ide.eclipse.as.core.server.internal.launch.JBossServerStartupLaunchConfiguration.ensureDefaultsSet(JBossServerStartupLaunchConfiguration.java:70)
at org.jboss.ide.eclipse.as.core.server.internal.launch.JBossServerStartupLaunchConfiguration.setupLaunchConfiguration(JBossServerStartupLaunchConfiguration.java:66)
at org.jboss.ide.eclipse.as.core.server.internal.JBossServerBehavior.setupLaunchConfiguration(JBossServerBehavior.java:95)
at org.eclipse.wst.server.core.internal.Server.setupLaunchConfiguration(Server.java:1152)
at org.eclipse.wst.server.core.internal.Server.getLaunchConfiguration(Server.java:1195)
at org.jboss.ide.eclipse.as.core.server.internal.JBossServer.getLaunchConfigConfigurationDirectory(JBossServer.java:171)
at org.jboss.ide.eclipse.as.core.server.internal.JBossServer.getConfigDirectory(JBossServer.java:153)
at org.jboss.ide.eclipse.as.core.server.internal.JBossServer.getDeployDirectory(JBossServer.java:165)
at org.jboss.ide.eclipse.as.core.server.internal.JBossServer.getDeployDirectory(JBossServer.java:146)
at org.jboss.ide.eclipse.as.core.publishers.JstPublisher.getDeployPath(JstPublisher.java:142)
at org.jboss.ide.eclipse.as.core.publishers.JstPublisher.fullPublish(JstPublisher.java:102)
at org.jboss.ide.eclipse.as.core.publishers.JstPublisher.publishModule(JstPublisher.java:93)
at org.jboss.ide.eclipse.as.core.server.internal.DeployableServerBehavior.publishModule(DeployableServerBehavior.java:121)
at org.eclipse.wst.server.core.model.ServerBehaviourDelegate.publishModule(ServerBehaviourDelegate.java:749)
at org.eclipse.wst.server.core.model.ServerBehaviourDelegate.publishModules(ServerBehaviourDelegate.java:835)
at org.eclipse.wst.server.core.model.ServerBehaviourDelegate.publish(ServerBehaviourDelegate.java:669)
at org.eclipse.wst.server.core.internal.Server.doPublish(Server.java:887)
at org.eclipse.wst.server.core.internal.Server.publish(Server.java:874)
at org.eclipse.wst.server.core.internal.PublishServerJob.run(PublishServerJob.java:72)