!SESSION 2013-09-18 06:46:39.948 -----------------------------------------------
eclipse.buildId=unknown
java.version=1.7.0_09
java.vendor=Oracle Corporation
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=de_DE
Command-line arguments:  -os linux -ws gtk -arch x86

!ENTRY com.subshell.toromiro 4 0 2013-09-18 07:00:26.169
!MESSAGE Exception occurred
!STACK 0
java.lang.reflect.InvocationTargetException
	at com.subshell.toromiro.actions.AddMixinAction$1.run(Unknown Source)
	at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
Caused by: javax.jcr.RepositoryException: Internal Server Error
	at org.apache.jackrabbit.spi2dav.ExceptionConverter.generate(ExceptionConverter.java:120)
	at org.apache.jackrabbit.spi2dav.ExceptionConverter.generate(ExceptionConverter.java:51)
	at org.apache.jackrabbit.spi2dav.ExceptionConverter.generate(ExceptionConverter.java:45)
	at org.apache.jackrabbit.spi2dav.RepositoryServiceImpl.isGranted(RepositoryServiceImpl.java:904)
	at org.apache.jackrabbit.jcr2spi.WorkspaceManager.canRead(WorkspaceManager.java:695)
	at org.apache.jackrabbit.jcr2spi.state.ItemStateValidator.checkIsWritable(ItemStateValidator.java:199)
	at org.apache.jackrabbit.jcr2spi.NodeImpl.canAddMixin(NodeImpl.java:837)
	at com.subshell.toromiro.delegators.NodeDelegator.canAddMixin(Unknown Source)
	... 2 more
Caused by: org.apache.jackrabbit.webdav.DavException: Internal Server Error
	at org.apache.jackrabbit.webdav.client.methods.DavMethodBase.getResponseException(DavMethodBase.java:165)
	at org.apache.jackrabbit.webdav.client.methods.DavMethodBase.checkSuccess(DavMethodBase.java:174)
	at org.apache.jackrabbit.spi2dav.RepositoryServiceImpl.isGranted(RepositoryServiceImpl.java:876)
	... 6 more
Root exception:
javax.jcr.RepositoryException: Internal Server Error
	at org.apache.jackrabbit.spi2dav.ExceptionConverter.generate(ExceptionConverter.java:120)
	at org.apache.jackrabbit.spi2dav.ExceptionConverter.generate(ExceptionConverter.java:51)
	at org.apache.jackrabbit.spi2dav.ExceptionConverter.generate(ExceptionConverter.java:45)
	at org.apache.jackrabbit.spi2dav.RepositoryServiceImpl.isGranted(RepositoryServiceImpl.java:904)
	at org.apache.jackrabbit.jcr2spi.WorkspaceManager.canRead(WorkspaceManager.java:695)
	at org.apache.jackrabbit.jcr2spi.state.ItemStateValidator.checkIsWritable(ItemStateValidator.java:199)
	at org.apache.jackrabbit.jcr2spi.NodeImpl.canAddMixin(NodeImpl.java:837)
	at com.subshell.toromiro.delegators.NodeDelegator.canAddMixin(Unknown Source)
	at com.subshell.toromiro.actions.AddMixinAction$1.run(Unknown Source)
	at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:121)
Caused by: org.apache.jackrabbit.webdav.DavException: Internal Server Error
	at org.apache.jackrabbit.webdav.client.methods.DavMethodBase.getResponseException(DavMethodBase.java:165)
	at org.apache.jackrabbit.webdav.client.methods.DavMethodBase.checkSuccess(DavMethodBase.java:174)
	at org.apache.jackrabbit.spi2dav.RepositoryServiceImpl.isGranted(RepositoryServiceImpl.java:876)
	... 6 more