how to expand size of Java stack trace to see bottom of stack? (triggering a stack overflow)

StackOverflow https://stackoverflow.com/questions/11865307

Question

In Java, is there any way to view the complete, untruncated stack trace (e.g. by increasing the number of frames recorded), or otherwise get at the bottom of a stack trace? Normally the stack trace is truncated from the top at 1024 frames worth, but for a stack overflow problem this is fairly worthless as you really need to see who made the call that triggered the recursion, down near the bottom. Much better would truncation in the middle of the stack, but evidently Sun's JVM isn't smart enough to do this.

Perhaps even some special Sun-specific flags? I tried reducing the stack size to the minimum allowable (-Xss1000) but that's still more than 1024 frames worth.

In my case, I'm trying to debug a stack overflow that occurs in a Hadoop mapper, but only when running on really large input. I assume the problem comes because a recursive operation (Scala's foldRight) is being done on a really, really large linked list, and I need to rewrite it non-recursively ... but I need to know who made the call to foldRight. This is a basic routine called directly and indirectly in a lot of places and there's lots and lots of code out there that I'm working with, so this is highly non-obvious.

Was it helpful?

Solution

Try the -XX:MaxJavaStackTraceDepth JVM option.

Here is a description from Stas's Blog

Max. no. of lines in the stack trace for Java exceptions (0 means all). With Java > 1.6, value 0 really means 0. value -1 or any negative number must be specified to print all the stack (tested with 1.6.0_22, 1.7.0 on Windows). With Java <= 1.5, value 0 means everything, JVM chokes on negative number (tested with 1.5.0_22 on Windows).

OTHER TIPS

You can iterate over the stack trace yourself

Throwable t =

for(StackTraceElement ste: t.getStackTrace()) {
    // is it a repeat??

}

The default printStackTrace will print every level which has been recorded. Your problem is that the stack is too deep for what it put in the stack trace.

Can you try reducing your stack size?

If you have access to the call before it is entering the suspected stack overflow, you could just generate an additional stack trace like new Exception().getStackTrace. Note that foldRight itself won't produce an infinite recursion. Maybe you just run out of memory, try increasing the JVM's stack size.

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