HTTP Status 500 - String index out of range: -10

type Exception report\r

messageString index out of range: -10\r

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

exception

java.lang.StringIndexOutOfBoundsException: String index out of range: -10

java.lang.String.substring(String.java:1911)

.lib.DecryptUtil.fileDecrypt(DecryptUtil.java:22)

coe(Action.java:59)

sun.reflect.Generatedessor38.invoke(Unknown Source)

sun.reflect.Delegatingpl.invoke(Delegatingva:43)

java.lang.reflect.hod.java:606)

.opensyctionInvocation.invokeAction(DefaultActionInvocation.java:452)

.opensyctionInvocation.invokeActionOnly(DefaultActionInvocation.java:291)

.opensyctionInvocation.invoke(DefaultActionInvocation.java:254)

.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176)

.opensyethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

.opensyctionInvocation.invoke(DefaultActionInvocation.java:248)

.opensytor.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)

org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)

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