https://bz.apache.org/bugzilla/show_bug.cgi?id=57776
Bug ID: 57776
Summary: Fragmented message error
Product: Tomcat 8
Version: 8.0.21
Hardware: Other
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: WebSocket
Assignee: dev@tomcat.apache.org
Reporter: steve.d...@shaw.ca
Vaadin 7.4.2 webapp runs perfectly in Tomcat 8.0.20 repeatedly evokes
IllegalStateException in Tomcat 8.0.21:
Exception in thread "WebSocketServer-localhost-/vfc-6"
java.lang.IllegalStateException: When sending a fragmented message, all
fragments bust be of the same type
at
org.apache.tomcat.websocket.WsRemoteEndpointImplBase.writeMessagePart(WsRemoteEndpointImplBase.java:411)
at
org.apache.tomcat.websocket.WsRemoteEndpointImplBase.endMessage(WsRemoteEndpointImplBase.java:366)
at
org.apache.tomcat.websocket.WsRemoteEndpointImplBase$IntermediateMessageHandler.onResult(WsRemoteEndpointImplBase.java:513)
at
org.apache.tomcat.websocket.server.WsRemoteEndpointImplServer$OnResultRunnable.run(WsRemoteEndpointImplServer.java:247)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Rolling back to 8.0.20 but retaining Tomcat Native 1.1.33 restores error-free
webapp operation. I haven't isolated a simple example as the webapp mostly
works and I don't yet know what triggers the error. The offending function
generates new threads, access a database, creates various forms and uses
WebSocket to push data to other user interfaces. I understand I have provided
insufficient information to qualify as a bug report, but please take it as a
data point, in case you receive other similar reports.
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