I tried to profile my jruby ruby application, as output i choose the json format but the result was invalid. The first lines look like

{
thread_profiles:[
{
thread_profiles:[
{
thread_profiles:[
{
thread_profiles:[
{
{
thread_profiles:[
{
"total_time":2.376408,
"total_time":2.385180,
"thread_name":"Smile Worker-4",
"thread_name":"Smile Worker-10",
"methods":[
"methods":[

My application use up ti 16 Threads. It looks to me like the profiling isn't thread save.