This happens only on the downloaded Workbench, runs fine from Eclipse.
1. On Windows XP, open Workbench
2. Open the About box and click Plug-in details and the following exception will be thrown:
java.lang.SecurityException: Either the manfiest file or the signature file has been tampered in this bundle: F:\download\workbench\plugins\org.eclipse.core.runtime.compatibility.registry_3.2.100.v20070316.jar
at org.eclipse.osgi.internal.verifier.SignedBundleFile.verifyManifestAndSingatureFile(SignedBundleFile.java:98)
at org.eclipse.osgi.internal.verifier.SignedBundleFile.processSigner(SignedBundleFile.java:537)
at org.eclipse.osgi.internal.verifier.SignedBundleFile.setBundleFile(SignedBundleFile.java:473)
at org.eclipse.osgi.internal.verifier.SignedBundleHook.getVerifier(SignedBundleHook.java:165)
at org.eclipse.osgi.internal.verifier.SignedBundleHook.getVerifier(SignedBundleHook.java:177)
at org.eclipse.ui.internal.about.AboutBundleData.isSigned(AboutBundleData.java:107)
at org.eclipse.ui.internal.dialogs.AboutPluginsDialog$2.run(AboutPluginsDialog.java:105)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Bug
Resolved
Minor
Exception when opening the Plug-in Details window from the About box
D:_tmp>c:\java\sun-jdk-1.6.0_06\bin\jarsigner.exe -verify org.apache.ant_1.7.0.v200706080842.jar
jarsigner: java.lang.SecurityException: Invalid signature file digest for Manifest main attributes
Perhaps they are re-packed during the build or something?