Increase the JVM Heap Size/Java Memory On Windows

1 . Go to Control Panel ---->  Open Java  Settings---->

2 . In Java Settings ----> Select tab Java ---->

3 . Change amount of heap.In "Runtime Parameters" column change the value (like -Xms512m)

or if it is blank decide for the new value, of the Java memory.

                                       OR

You can also try adding Java Memory through the Environment Properties

1. Right-click My Computer ---> Properties ---> Advanced System Settings --->

           System Properties ---> Environment Variables

     2.   Add a new variable name and value.

                For variable name enter JAVA_OPTS for variable value enter JAVA_OPTS=-Xms256m -Xmx512m