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via Coderanch by Igor Mechnikov, 1 year ago
java.lang.NullPointerException: 	at ChatRoom.(ChatRoom.java:124)	at ChatRoom.main(ChatRoom.java:48)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:616)	at edu.rice.cs.drjava.model.compiler.JavacCompiler.runCommand(JavacCompiler.java:271)