[java] [javac] 1. ERROR in /home/hudson/hudson_workspace/workspace/devstudio-nightly/jbds-build/eclipse/plugins/org.jboss.tools.project.examples/src/org/jboss/tools/project/examples/filetransfer/ECFExamplesTransport.java (at line 45)
[java] [javac] import org.eclipse.equinox.internal.provisional.p2.core.repository.IRepository;
[java] [javac] ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Seems like this has moved to org.eclipse.equinox.internal.provisional.p2.repository.IRepository:

./org.eclipse.equinox.p2.repository.source_1.0.0.v20090413-2207.jar
6115 04-14-09 08:37 org/eclipse/equinox/internal/provisional/p2/repository/IRepository.java

./org.eclipse.equinox.p2.repository_1.0.0.v20090413-2207.jar
1346 04-14-09 08:36 org/eclipse/equinox/internal/provisional/p2/repository/IRepository.class

Please update your manifest.mf and import(s) accordingly.

Better yet: if possible, don't depend on provisional API.