Manifest:

  Manifest-Version: 1.0
  Premain-Class: agent

Will fail saying that agent can't be found. I pounded my head against my screen for an hour trying to figure out what was wrong. Turns out it was looking for a class named " agent". The white-space processing for other JAR attributes should also be checked.

###@###.### 2005-05-23 01:30:24 GMT
The following new test will fail without the fix for this
bug in a promoted JDK:

    java/lang/instrument/ManifestTest.sh