HTTP Status 500 – Internal Server Error


Type Exception Report

Message Servlet execution threw an exception

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

Exception

javax.servlet.ServletException: Servlet execution threw an exception
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)

Root Cause

java.lang.ClassFormatError: Incompatible magic value 1937075759 in class file sun/net/ConnectionResetException
	java.base/java.net.SocketInputStream.read(SocketInputStream.java:168)
	java.base/java.net.SocketInputStream.read(SocketInputStream.java:140)
	java.base/java.net.SocketInputStream.read(SocketInputStream.java:200)
	com.compuware.uniface.net.version8.Connection.recvSegment(Connection.java:399)
	com.compuware.uniface.net.version8.Connection.recvSegments(Connection.java:327)
	com.compuware.uniface.net.version8.Connection.recv(Connection.java:292)
	com.compuware.uniface.net.version8.Server.start(Server.java:130)
	com.compuware.uniface.urd.uv8.MWModule.createConnection(MWModule.java:146)
	com.compuware.uniface.urd.uv8.MWModule.open(MWModule.java:106)
	com.compuware.uniface.urd.uv8.MWModule.open(MWModule.java:100)
	com.compuware.uniface.urd.AServlet.openMiddleware(AServlet.java:504)
	com.compuware.uniface.urd.WRDServlet.activate(WRDServlet.java:534)
	com.compuware.uniface.urd.AnUSPServlet.forwardRequest(AnUSPServlet.java:551)
	com.compuware.uniface.urd.AnUSPServlet.handleRequest(AnUSPServlet.java:452)
	com.compuware.uniface.urd.AnUSPServlet.doGet(AnUSPServlet.java:154)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:529)
	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/9.0.83