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From Youhei Ootsuki <youhei.oots...@gmail.com>
Subject what is java.lang.NullPointerException
Date Thu, 05 Oct 2017 13:40:58 GMT
Hi,


What happened

Please tell me the solution




Linux debian 4.9.0-3-amd64 #1 SMP Debian 4.9.30-2+deb9u5 (2017-09-19) x86_64

0.9.13-incubating

# java -version
java version "1.8.0_144"
Java(TM) SE Runtime Environment (build 1.8.0_144-b01)
Java HotSpot(TM) 64-Bit Server VM (build 25.144-b01, mixed mode)

tomcat8/stable,now 8.5.14-1+deb9u2 all

apache2/stable,now 2.4.25-3+deb9u3 amd64





04-Oct-2017 21:17:22.854 重大 [ajp-nio-8009-exec-6]
org.apache.catalina.core.StandardWrapperValve.invoke サーブレット default
のServlet.service()が例外を投げました
 java.lang.NullPointerException
        at
org.apache.guacamole.protocol.GuacamoleInstruction.toString(GuacamoleInstruction.java:121)

        at
org.apache.guacamole.io.WriterGuacamoleWriter.writeInstruction(WriterGuacamoleWriter.java:78)

        at
org.apache.guacamole.protocol.ConfiguredGuacamoleSocket.<init>(ConfiguredGuacamoleSocket.java:133)

        at
org.apache.guacamole.net.auth.simple.SimpleConnection.connect(SimpleConnection.java:123)

        at
org.apache.guacamole.tunnel.TunnelRequestService.createConnectedTunnel(TunnelRequestService.java:160)

        at
org.apache.guacamole.tunnel.TunnelRequestService.createTunnel(TunnelRequestService.java:329)

        at
org.apache.guacamole.tunnel.http.RestrictedGuacamoleHTTPTunnelServlet.doConnect(RestrictedGuacamoleHTTPTunnelServlet.java:55)

        at
org.apache.guacamole.servlet.GuacamoleHTTPTunnelServlet.handleTunnelRequest(GuacamoleHTTPTunnelServlet.java:213)

        at
org.apache.guacamole.servlet.GuacamoleHTTPTunnelServlet.doPost(GuacamoleHTTPTunnelServlet.java:142)

        at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
        at
com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:263)

        at
com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:178)

        at
com.google.inject.servlet.ManagedServletPipeline.service(ManagedServletPipeline.java:91)

        at
com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:62)

        at
com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:118)

        at
com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:113)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)

        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)

        at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)

        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)

        at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)

        at
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)

        at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)

        at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
        at
org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:486)
        at
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)

        at
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861)

        at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)

        at
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)

        at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

        at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

        at java.lang.Thread.run(Thread.java:748)

04-Oct-2017 21:21:19.213 重大 [ajp-nio-8009-exec-7]
org.apache.catalina.core.StandardWrapperValve.invoke サーブレット default
のServlet.service()が例外を投げました
 java.lang.UnsupportedOperationException: HTTP upgrade is not supported by
this protocol
        at
org.apache.coyote.AbstractProcessor.doHttpUpgrade(AbstractProcessor.java:705)

        at
org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:470)
        at org.apache.coyote.Request.action(Request.java:393)
        at org.apache.catalina.connector.Request.upgrade(Request.java:2002)
        at
org.apache.catalina.connector.RequestFacade.upgrade(RequestFacade.java:1115)

        at
javax.servlet.http.HttpServletRequestWrapper.upgrade(HttpServletRequestWrapper.java:376)

        at
org.apache.tomcat.websocket.server.UpgradeUtil.doUpgrade(UpgradeUtil.java:235)

        at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:77)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

        at
com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:66)

        at
com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:118)

        at
com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:113)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)

        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)

        at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)

        at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)

        at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)

        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)

        at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)

        at
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)

        at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)

        at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
        at
org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:486)
        at
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)

        at
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861)

        at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455)

        at
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)

        at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

        at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

        at java.lang.Thread.run(Thread.java:748)

04-Oct-2017 21:21:19.222 重大 [ajp-nio-8009-exec-3]
org.apache.catalina.core.StandardWrapperValve.invoke サーブレット default
のServlet.service()が例外を投げました
 java.lang.NullPointerException
        at
org.apache.guacamole.protocol.GuacamoleInstruction.toString(GuacamoleInstruction.java:121)

        at
org.apache.guacamole.io.WriterGuacamoleWriter.writeInstruction(WriterGuacamoleWriter.java:78)

        at
org.apache.guacamole.protocol.ConfiguredGuacamoleSocket.<init>(ConfiguredGuacamoleSocket.java:133)

        at
org.apache.guacamole.net.auth.simple.SimpleConnection.connect(SimpleConnection.java:123)

        at
org.apache.guacamole.tunnel.TunnelRequestService.createConnectedTunnel(TunnelRequestService.java:160)

        at
org.apache.guacamole.tunnel.TunnelRequestService.createTunnel(TunnelRequestService.java:329)

        at
org.apache.guacamole.tunnel.http.RestrictedGuacamoleHTTPTunnelServlet.doConnect(RestrictedGuacamoleHTTPTunnelServlet.java:55)

        at
org.apache.guacamole.servlet.GuacamoleHTTPTunnelServlet.handleTunnelRequest(GuacamoleHTTPTunnelServlet.java:213)

        at
org.apache.guacamole.servlet.GuacamoleHTTPTunnelServlet.doPost(GuacamoleHTTPTunnelServlet.java:142)

        at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
        at
com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:263)

        at
com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:178)

        at
com.google.inject.servlet.ManagedServletPipeline.service(ManagedServletPipeline.java:91)




-- 
Youhei Otsuki <youhei-otsuki@star-seeker.net>

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