https://bz.apache.org/bugzilla/show_bug.cgi?id=58414
Bug ID: 58414
Summary: It is not possible to transfer empty string through
Web Socket
Product: Tomcat 8
Version: 8.0.26
Hardware: PC
Status: NEW
Severity: critical
Priority: P2
Component: WebSocket
Assignee: [email protected]
Reporter: [email protected]
Created attachment 33111
--> https://bz.apache.org/bugzilla/attachment.cgi?id=33111&action=edit
Example of ServerEndpoint implementation.
Every time, when I try to transfer empty string through web socket I get an
IllegalArgumentException from java.nio.Buffer#limit(int newLimit) because of
negative new limit value. The reason of this issue is
org.apache.tomcat.websocket.PerMessageDeflate#sendMessagePart(List<MessagePart>
uncompressedParts)
line:
// End of compressed message. Drop EOM bytes and output.
compressedPayload.limit(compressedPayload.limit() - EOM_BYTES.length);
compressedPayload.limit() has zero value and EOM_BYES.length has value, which
greater than 0.
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