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via JIRA by Michael Stack, 1 year ago
This exception has no message.
java.lang.NullPointerExceptionjava.lang.NullPointerException at it.unimi.dsi.mg4j.util.MutableString.append( at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke( at sun.reflect.DelegatingMethodAccessorImpl.invoke( at java.lang.reflect.Method.invoke( at bsh.Reflect.invokeMethod(Unknown Source) at bsh.Reflect.invokeObjectMethod(Unknown Source) at bsh.Name.invokeMethod(Unknown Source) at bsh.BSHMethodInvocation.eval(Unknown Source) at bsh.BSHPrimaryExpression.eval(Unknown Source) at bsh.BSHPrimaryExpression.eval(Unknown Source) at Source) at bsh.Interpreter.main(Unknown Source)