Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

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(MutableString.java:811) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) 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 bsh.Interpreter.run(Unknown Source) at bsh.Interpreter.main(Unknown Source)