run on more than one thread ...
diff --git a/releng.wtpbuilder/scripts/build/signjars.xml b/releng.wtpbuilder/scripts/build/signjars.xml
index df754db..71163b9 100644
--- a/releng.wtpbuilder/scripts/build/signjars.xml
+++ b/releng.wtpbuilder/scripts/build/signjars.xml
@@ -164,6 +164,17 @@
<arg
line="david_williams@build.eclipse.org /bin/rm -rf ${outputFile}" />
</exec>
+
+ <echo
+ message="delete signing directory we created on build.eclipse.org" />
+ <exec
+ executable="ssh"
+ output="${signingHistory}"
+ append="true">
+ <arg
+ line="david_williams@build.eclipse.org /bin/rm -rf ${stagingDirectory}" />
+ </exec>
+
</target>