https://bz.apache.org/bugzilla/show_bug.cgi?id=62133
Bug ID: 62133
Summary: java.lang.NoSuchMethodError when the client project
works with websocket
Product: Tomcat 9
Version: unspecified
Hardware: PC
Status: NEW
Severity: blocker
Priority: P2
Component: WebSocket
Assignee: dev@tomcat.apache.org
Reporter: wangying8...@163.com
Target Milestone: -----
To handle the real time messaging, our project depends on websocket and set the
<Loader delegate="true"/> in script Context.xml. When running at tomcat 7.0.47,
we get the following exception:
java.lang.NoSuchMethodError:
javax.websocket.Session.addMessageHandler(Ljava/lang/Class;Ljavax/websocket/MessageHandler$Whole;)V
at com.horizon.common.websocket.WsServer.onOpen(WsServer.java:33)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.apache.tomcat.websocket.pojo.PojoEndpointBase.doOnOpen(PojoEndpointBase.java:58)
at
org.apache.tomcat.websocket.pojo.PojoEndpointServer.onOpen(PojoEndpointServer.java:70)
at
org.apache.tomcat.websocket.server.WsHttpUpgradeHandler.init(WsHttpUpgradeHandler.java:129)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:629)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
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