To fix the could not reserve enough space for 2097152KB object heap error message, just change the -Xmx setting to something more conservative such as 512m or 1024m.

You can fix your Java memory leak problem without a costly JVM heap dump. Just use Java Flight Recorder's Old Object Sample event and view the recording in JDK Mission Control.

Running a commercial app set to -Xmx2048M on Sol 10 (sun4v sparc) with 64G of physical RAM. Is it possible to bump up the java heap space even further?