Hi, just found that jstat does not accept program names as VM ids, it just accepts Pids:
./images/jdk/bin/jcmd hello.Application 5073: The following commands are available: Compiler.CodeHeap_Analytics Compiler.codecache ... ./images/jdk/bin/jstat -gcutil hello.Application Malformed VM Identifier: hello.Application ./images/jdk/bin/jstat -gcutil 5073 S0 S1 E O M CCS YGC YGCT FGC FGCT CGC CGCT GCT 0.00 100.00 66.67 2.64 96.55 88.91 5 0.089 0 0.000 4 0.068 0.156 Is that by design? Thanks, Thomas