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 Spring JIRA by masrawi, 1 year ago
This exception has no message.
via Spring JIRA by masrawi, 2 years ago
This exception has no message.
via Stack Overflow by sudo
, 2 years ago
This exception has no message.
via Stack Overflow by anirvan
, 2 years ago
via mkyong.com by Unknown author, 1 year ago
This exception has no message.
via Coderanch by Darren Alexandria, 1 year ago
java.lang.NullPointerException: 	at java.util.Hashtable.get(Hashtable.java:334)	at org.apache.tomcat.util.http.Parameters.getParameterValues(Parameters.java:194)	at org.apache.tomcat.util.http.Parameters.getParameter(Parameters.java:239)	at org.apache.catalina.connector.Request.getParameter(Request.java:1042)	at org.apache.catalina.connector.RequestFacade.getParameter(RequestFacade.java:355)	at javax.servlet.ServletRequestWrapper.getParameter(ServletRequestWrapper.java:158)	at javax.servlet.ServletRequestWrapper.getParameter(ServletRequestWrapper.java:158)	at org.springframework.web.context.request.ServletWebRequest.getParameter(ServletWebRequest.java:113)	at org.springframework.web.accept.ParameterContentNegotiationStrategy.getMediaTypeKey(ParameterContentNegotiationStrategy.java:60)	at org.springframework.web.accept.AbstractMappingContentNegotiationStrategy.resolveMediaTypes(AbstractMappingContentNegotiationStrategy.java:46)	at org.springframework.web.accept.ContentNegotiationManager.resolveMediaTypes(ContentNegotiationManager.java:102)	at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.getAcceptableMediaTypes(AbstractMessageConverterMethodProcessor.java:189)	at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:114)	at org.springframework.web.servlet.mvc.method.annotation.AbstractMessageConverterMethodProcessor.writeWithMessageConverters(AbstractMessageConverterMethodProcessor.java:90)	at org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor.handleReturnValue(RequestResponseBodyMethodProcessor.java:189)	at org.springframework.web.method.support.HandlerMethodReturnValueHandlerComposite.handleReturnValue(HandlerMethodReturnValueHandlerComposite.java:69)	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:122)	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:746)	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:687)	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:915)	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:811)