Can I dump the current thread stack variables from a live JVM?
java, jvm, jvm-crash, stack-trace, yourkit
Solution
I found a little trick using a heap dump viewer (YourKit in this instance, but may be others work as well). Basically you enumerate all instances of the Thread class, then you find the thread you want by name and open it. The stack variables are marked as < local variable > like this:
Not all variables are here, but all that are passed as arguments to method are displayed. I wonder if the profilers can address this issue even better?
Problem
I need to peek into the stack of 2 deadlocked threads to analyze the situation. The `JVM` is live right now and the data is there, but I need some kind of tool to extract it from the process. I only care about 6 variables in the stack of type `String`. Any ideas are greatly appreciated. `JVM` versions `6_35`, it's a `linux`, `JMX` is enabled, but I dont have a `profiler/debugger` connection configured on it. It's very difficult to reproduce.