Problem:

Java Objects Leak when being used from COBOL.

When using many Java objects from COBOL it was found that the Java Objects were not garbage collected by the Java runtime.

Resolution:

In order for the Java runtime (JVM) to reclaim objects created from COBOL then COBOL needs to finalize the object reference. For Example:-

class myjava is "$java$myjavaclass"

01  myjava   object reference.

invoke myjava "new" returning myjava

invoke myjava "aMethod"

invoke myjava "finalize" returning myjava

The "finalize" call is required to prevent any Java object leaks.