Apparently this is similar to issue 1087
(https://hudson.dev.java.net/issues/show_bug.cgi?id=1087) in that it seems to be
due to the use of a JDK 1.6 feature that is not present in JDK 1.5.

I am relying on the "promise" of hudson running under JDK 1.5. Unlike the
person in 1087, I do not have the option of running hudson with JDK 1.6 and
would greatly appreciate it if the clover plugin were fixed.

Please let me know if I can provide any more information.

For the record, here is a clip of the build log:

BUILD SUCCESSFUL
Total time: 128 minutes 48 seconds
Publishing Javadoc
Recording test results
No test report files were found. Configuration error?
Sending e-mails to: x@y.com
Publishing Clover coverage report...
Publishing Clover coverage results...
FATAL: java.io.IOException: method
<init>(Ljava/lang/String;Ljava/lang/Throwable;)V not found
java.lang.NoSuchMethodError: java.io.IOException: method
<init>(Ljava/lang/String;Ljava/lang/Throwable;)V not found
at hudson.plugins.clover.CloverCoverageParser.parse(CloverCoverageParser.java:88)
at hudson.plugins.clover.CloverCoverageParser.parse(CloverCoverageParser.java:50)
at hudson.plugins.clover.CloverPublisher.perform(CloverPublisher.java:159)
at
hudson.tasks.BuildStepCompatibilityLayer.perform(BuildStepCompatibilityLayer.java:33)
at hudson.model.Build$RunnerImpl.performAllBuildStep(Build.java:150)
at hudson.model.Build$RunnerImpl.post2(Build.java:137)
at hudson.model.AbstractBuild$AbstractRunner.post(AbstractBuild.java:254)
at hudson.model.Run.run(Run.java:674)
at hudson.model.Build.run(Build.java:102)
at hudson.model.ResourceController.execute(ResourceController.java:70)
at hudson.model.Executor.run(Executor.java:65)