@JRubyMethod(optional = 2, compat = CompatVersion.RUBY2_0)
public IRubyObject backtrace_locations(ThreadContext context, IRubyObject[] args) {
ThreadContext myContext = getContext();
if (myContext == null) return context.nil;
Ruby runtime = context.runtime;
Integer[] ll = RubyKernel.levelAndLengthFromArgs(runtime, args, 0);
Integer level = ll[0], length = ll[1];
return myContext.createCallerLocations(level, length, getNativeThread().getStackTrace());
}
@JRubyMethod(name = "backtrace", optional = 2, compat = CompatVersion.RUBY2_0)
public IRubyObject backtrace20(ThreadContext context, IRubyObject[] args) {
ThreadContext myContext = getContext();
// context can be nil if we have not started or GC has claimed our context
if (myContext == null) return context.nil;
Thread nativeThread = getNativeThread();
// nativeThread can be null if the thread has terminated and GC has claimed it
if (nativeThread == null) return context.nil;
Ruby runtime = context.runtime;
Integer[] ll = RubyKernel.levelAndLengthFromArgs(runtime, args, 0);
Integer level = ll[0], length = ll[1];
return myContext.createCallerBacktrace(level, length, getNativeThread().getStackTrace());
}