HAT Release Notes
The following releases feature these improvements:
HAT 1.0.2
- Compatibility with the JAVA PROFILE 1.0.1 format, which is produced
as of JDK 1.2beta4
- Much faster startup time, at the cost of some memory
- Some slightly improved queries
HAT 1.0.3
- Needs much less RAM it used to, which makes the tool
usable to debug moderately big heap dump files. Typical
runs seem to require about 1/8th as much RAM as before.
HAT 1.0.4
- Fixed an embarassignly trivial bug in the .hprof parser. This
bug impacted the rootset reference chains query. HAT would
falsely report a root due to a Java local reference as if it
were from a JNI local reference.
HAT 1.0.5
- Added a new root type: "native local." This refers to a
root that's either a Java local variable from a JITted stack
frame, or a root that was found from a conservative scan of the
stack.