http status 500 - string index outrange: -10
\r exception report\r string index outrange: -10\r the server encounteredinteal error that preventedfrom fulfilling this request\rjavalangstringindexoutofboundsexception: string index outrange: -10javalangstringsubstringlibdecryptutilfiledecryptencryptactionexecutesunreflectessor38invokesunreflectessorimplinvokejavalangreflectmethodinvokeopensymphonyxwork2defaultactioninvocationinvokeactionopensymphonyxwork2defaultactioninvocationinvokeactiononlyopensymphonyxwork2defaultactioninvocationinvokeopensymphonyxwork2interceptordefaultworkflowinterceptordointerceptopensymphonyxwork2interceptormethodfilterinterceptorinterceptopensymphonyxwork2defaultactioninvocationinvokeopensymphonyxwork2validatorvalidationinterceptordointerceptapachestruts2interceptorvalidationannotationvalidationinterceptordointerceptopensymphonyxwork2interceptormethodfilterinterceptorinterceptopensymphonyxwork2defaultactioninvocationinvokeopensymphonyxwork2interceptorconversionerrorinterceptorinterceptopensymphonyxwork2defaultactioninvocationinvokeopensymphonyxwork2interceptorparametersinterceptordointerceptopensymphonyxwork2interceptormethodfilterinterceptorinterceptopensymphonyxwork2defaultactioninvocationinvokeopensymphonyxwork2interceptorparametersinterceptordointerceptopensymphonyxwork2interceptormethodfilterinterceptorinterceptopensymphonyxwork2defaultactioninvocationinvokeopensymphonyxwork2interceptorstaticparametersinterceptorinterceptopensymphonyxwork2defaultactioninvocationinvokeapachestruts2interceptormultiselectinterceptorinterceptopensymphonyxwork2defaultactioninvocationinvokeapachestruts2interceptorcheckboxinterceptorinterceptopensymphonyxwork2defaultactioninvocationinvokeapachestruts2interceptorfileuploadinterceptorinterceptopensymphonyxwork2defaultactioninvocationinvokeopensymphonyxwork2interceptordeldriveninte