update jdt.core and tests to v_B28.
diff --git a/org.eclipse.jdt.core/build.properties b/org.eclipse.jdt.core/build.properties
index ff33f90..ff520f9 100644
--- a/org.eclipse.jdt.core/build.properties
+++ b/org.eclipse.jdt.core/build.properties
@@ -9,6 +9,7 @@
 #     IBM Corporation - initial API and implementation
 ###############################################################################
 customBuildCallbacks=customBuildCallbacks.xml
+customBuildCallbacks.inheritall=true
 bin.includes = plugin.xml,\
                plugin.properties,\
                about.html,\