HTTP Status 500 – Internal Server Error


Type Exception Report

Message Request processing failed; nested exception is java.lang.NullPointerException

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.NullPointerException
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:979)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:858)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:529)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:843)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:623)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)

Root Cause

java.lang.NullPointerException
	eu.europa.publications.shacl.parse.RDFShaclParser.parseShapeList(RDFShaclParser.java:124)
	eu.europa.publications.shacl.model.impl.ShapesImpl.getShapes(ShapesImpl.java:31)
	eu.europa.publications.shacl.model.impl.ShapesImpl.toString(ShapesImpl.java:41)
	java.lang.String.valueOf(String.java:2994)
	java.io.PrintStream.println(PrintStream.java:821)
	org.apache.tomcat.util.log.SystemLogHandler.println(SystemLogHandler.java:275)
	eu.europa.publications.shacl.validator.DisplayController.display(DisplayController.java:52)
	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
	org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136)
	org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
	org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:832)
	org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:743)
	org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:961)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:895)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:967)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:858)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:529)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:843)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:623)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)

Note The full stack trace of the root cause is available in the server logs.


Apache Tomcat/9.0.x