Exception in thread "main" java.lang.NullPointerException
at sun.jvm.hotspot.memory.SymbolTable.getTheTable(jdk.hotspot.agent@9-internal/SymbolTable.java:61)
at sun.jvm.hotspot.runtime.VM.getSymbolTable(jdk.hotspot.agent@9-internal/VM.java:644)
at SASymbolTableTestAgent.run(SASymbolTableTestAgent.java:116)
at sun.jvm.hotspot.tools.Tool.startInternal(jdk.hotspot.agent@9-internal/Tool.java:260)
at sun.jvm.hotspot.tools.Tool.start(jdk.hotspot.agent@9-internal/Tool.java:223)
at sun.jvm.hotspot.tools.Tool.execute(jdk.hotspot.agent@9-internal/Tool.java:118)
at SASymbolTableTestAgent.main(SASymbolTableTestAgent.java:46)