https://bz.apache.org/bugzilla/show_bug.cgi?id=57894
Bug ID: 57894
Summary: IllegalStateException - BINARY_FULL_WRITING
Product: Tomcat 8
Version: 8.0.21
Hardware: All
OS: All
Status: NEW
Severity: critical
Priority: P2
Component: WebSocket
Assignee: dev@tomcat.apache.org
Reporter: yaowei...@gmail.com
WsRemoteEndpointImplBase.sendBinary is not synchronized. And there's no way to
detect the state outside.
client -> server -> client -> server
The second time client call sendBinary may fail due to the race condition of
stateMachine.binaryStart and stateMachine.complete
java.lang.IllegalStateException: The remote endpoint was in state
[BINARY_FULL_WRITING] which is an invalid state for called method
at
org.apache.tomcat.websocket.WsRemoteEndpointImplBase$StateMachine.checkState(WsRemoteEndpointImplBase.java:1148)
at
org.apache.tomcat.websocket.WsRemoteEndpointImplBase$StateMachine.binaryStart(WsRemoteEndpointImplBase.java:1101)
at
org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendBytes(WsRemoteEndpointImplBase.java:131)
at
org.apache.tomcat.websocket.WsRemoteEndpointBasic.sendBinary(WsRemoteEndpointBasic.java:43)
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