I'm getting the following trying to build eclipse-ptp 5.0.2:
/usr/lib64/eclipse/dropins/sdk/plugins/org.eclipse.pde.build_3.7.0.v20110512-1320/scripts/genericTargets.xml:111: Processing inclusion from feature org.eclipse.ptp.rm.jaxb: Bundle org.eclipse.ptp.rm.jaxb.core_1.0.0.201110041027 failed to resolve.: Missing required plug-in javax.xml.stream_1.0.1.
I would have guessed that xml-commons-apis would have provided this (there are items in javax/xml/stream), but there is not an entry for javax.xml.stream in its manifest. File a bug?