RAD 7.5 Out of memory exceptions

I am working in RAD 7.5, Using WAS 7.0 Server. When I tried to start the server facing, I get Out of Memory exception. Detail error message is pasted below:

java.l开发者_运维百科ang.OutOfMemoryError at java.lang.String.toCharArray(String.java:1101 )

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You might want to increase the available memory to your Java VM. You can do this by a switch to the interpreter.