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 Terracotta by yoseph, 1 year ago
via terracotta.org by Unknown author, 2 years ago
via Terracotta Project Issue Tracker by Yoseph Stephen, 1 year ago
via Terracotta Project Issue Tracker by Yoseph Stephen, 2 years ago
javax.servlet.ServletException: Upgrade failed	at org.apache.tomcat.websocket.server.UpgradeUtil.doUpgrade(UpgradeUtil.java:190)	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:77)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)	at org.terracotta.modules.tomcat.tomcat_7_0.SessionValve70.tcInvoke(SessionValve70.java:97)	at org.terracotta.modules.tomcat.tomcat_7_0.SessionValve70.invoke(SessionValve70.java:82)	at org.terracotta.session.ModernTomcatSessionValve.invoke(ModernTomcatSessionValve.java:66)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)	at java.lang.Thread.run(Thread.java:745)