Reading a weblogic crash core using adb

[Allen Bandela]

I know the syntax to use adb debugger
is
adb objectfile corefile

Now, our weblogic crashed and a core was produced in the domain directory> I'm not sure what to provide as the objectfile to adb. What would be the object file? weblogic.Server , one of the many class files?

[Ernest Friedman-Hill]

Since you don't presumably don't have the source to the I9 JVM, it's pretty unlikely that this core file is going to do you any good. Any time a JVM crashes, it's a bug in the JVM, not your Java code. Report the bug, provide the core file if they ask for it.

[Tim Holloway]

I spent years mucking around in binary dumps. It builds character, but I don't recommend it. Especially when you're working with a JVM, since that adds a Java debug layer on top of the machine debug layer.

Since you don't have the source for either WebLogic or the JVM, the best you can do is ship a copy of the core file to the vendor if so directed. The core dump is the object code - what you'd normally attach is the source code. Which, as I said, you probably don't have.

Generally, the best you can do when this happens is find a different VM version - one that doesn't crash for you. The nature of JVM bugs is such that that's usually fairly easy to do.