Red Hat Bugzilla – Bug 392671
jstat tool is broken
Last modified: 2007-11-30 17:12:23 EST
Description of problem: Java provides a process-monitoring tool called "jstat" which seems to be broken with IcedTea on Fedora 8. Just running jstat works, but if I try to use any options, it produces a backtrace. Here's an example: jstat -options Exception in thread "main" java.lang.NullPointerException at sun.tools.jstat.OptionLister.print(OptionLister.java:61) at sun.tools.jstat.Jstat.main(Jstat.java:63) Version-Release number of selected component (if applicable): java-1.7.0-icedtea-1.7.0.0-0.19.b21.snapshot.fc8 How reproducible: Every time Steps to Reproduce: 1. jstat -options Actual results: Backtrace Expected results: List of options
p.s. -- I did a bit of poking around, and it looks like the problem is actually in sun.tools.jstat.Arguments.optionsSources() -- I suspect that maybe the second value being put into that array is actually null (despite the assert check about it). What happens to this.getClass().getResource(whatever) when you compile something to an executable? It's trying to get a resource out of a jar file but it's not being run from a jar file ...
This is fixed in b23, which is now in rawhide: Name : java-1.7.0-icedtea Arch : i586 Version: 1.7.0.0 Release: 0.20.b23.snapshot.fc9 Repo : development jstat -options -class -compiler -gc -gccapacity -gccause -gcnew -gcnewcapacity -gcold -gcoldcapacity -gcpermcapacity -gcutil -printcompilation Closing bug report.