apache tomcat/7.0.62 - error report

    http status 500 - string index out of range: -10

    \r

    type exception report\r

    message

    string index out of range: -10\r

    description

    the server encountered an internal error that prevented it from fulfilling this request.\r

    exception

    java.ng.stringindexoutofboundsexception: string index out of range: -10

    java.ng.string.substring(string.java:1911)

    com.lib.decryptutil.filedecrypt(decryptutil.java:22)

    coction.execute(action.java:61)

    sun.reflect.generatedmethodaccessor38.invoke(unknown source)

    sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43)

    java.ng.reflect.method.invoke(method.java:606)

    com.opensymphony.xwork2.defaultactioninvocation.invokeaction(defaultactioninvocation.java:452)

    com.opensymphony.xwork2.defaultactioninvocation.invokeactiononly(defaultactioninvocation.java:291)

    com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:254)

    com.opensymphony.xwork2.interceptor.defaultworkflowinterceptor.dointercept(defaultworkflowinterceptor.java:176)

    com.opensymphony.xwork2.interceptor.methodfilterinterceptor.intercept(methodfilterinterceptor.java:98)

    com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:248)

    com.opensymphony.xwork2.validator.validationinterceptor.dointercept(validationinterceptor.java:263)

    org.apache.struts2.interceptor.validation.annotationvalidationinterceptor.dointercept(annotationvalidationinterceptor.java:68)

    com.opensymphony.xwork2.interceptor.methodfilterinterceptor.intercept(methodfilterinterceptor.java:98)

    com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:248)

    com.opensymphony.xwork2.interceptor.conversionerrorinterceptor.intercept(conversionerrorinterceptor.java:133)

    com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:248)

    com.opensymphony.xwork2.interceptor.parametersinterceptor.dointercept(parametersinterceptor.java:207)

    com.opensymphony.xwork2.interceptor.methodfilterinterceptor.intercept(methodfilterinterceptor.java:98)

    com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:248)

    com.opensymphony.xwork2.interceptor.parametersinterceptor.dointercept(parametersinterceptor.java:207)

    com.opensymphony.xwork2.interceptor.methodfilterinterceptor.intercept(methodfilterinterceptor.java:98)

    com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:248)

    com.opensymphony.xwork2.interceptor.staticparametersinterceptor.intercept(staticparametersinterceptor.java:190)

    com.opensymphony.xwork2.defaultactioninvocation.invoke(defaultactioninvocation.java:248)

    org.apache.struts2.interceptor.multiselectinterceptor.intercept(multiselectinterceptor.jav