Rolling garbage collector logs in java

Built-in support for GC log rotation has been added to the HotSpot JVM.
It is described in the RFE 6941923 and is available in:

• Java 6 Update 34
• Java 7 Update 2 (but there is no reference to it in these release notes)

There are three new JVM flags that can be used to enable and configure it:

• -XX:+UseGCLogFileRotation
  must be used with -Xloggc:<filename>;
• -XX:NumberOfGCLogFiles=<number of files>
  must be >=1, default is one;
• -XX:GCLogFileSize=<number>M (or K)
  default will be set to 512K.