8202719: Use Collections.emptyEnumeration where possible
Reviewed-by: martin, psandoz
Contributed-by: christoph.dreis@freenet.de
This is a very rough tool for parsing -XX:+LogCompilation output.
It's main purpose is to recreate output similar to
-XX:+PrintCompilation -XX:+PrintInlining output from a debug JVM. It
requires a 1.5 JDK to build and simply typing make should build it.
It produces a jar file, logc.jar, that can be run on the
HotSpot log (by default, hotspot_pid{pid}.log) from LogCompilation output like this:
java -jar logc.jar hotspot_pid1234.log
This will produce something like the normal PrintCompilation output.
Adding the -i option with also report inlining like PrintInlining.
More information about the LogCompilation output can be found at
https://wiki.openjdk.java.net/display/HotSpot/LogCompilation+overview
https://wiki.openjdk.java.net/display/HotSpot/PrintCompilation
https://wiki.openjdk.java.net/display/HotSpot/LogCompilation+tool
The project layout is now for Maven. To build the project with Maven do:
mvn clean install
The build also copies the resulting target jar to ./logc.jar for easy
interop with the Makefile build.