https://bz.apache.org/bugzilla/show_bug.cgi?id=67293
--- Comment #2 from outsider...@gmail.com --- Indeed, error description was confusing. I made additional analyze and now error description should be clear: https://github.com/apache/tomcat/blob/10.1.13/java/org/apache/tomcat/websocket/WsSession.java#L614 614 public void onClose(CloseReason closeReason) { 615 if (state.compareAndSet(State.OPEN, State.CLOSING)) { 616 // Standard close. 617 618 // Flush any batched messages not yet sent. 619 try { 620 wsRemoteEndpoint.setBatchingAllowed(false); 621 } catch (Throwable t) { 622 ExceptionUtils.handleThrowable(t); 623 log.warn(sm.getString("wsSession.flushFailOnClose"), t); 624 fireEndpointOnError(t); 625 } 626 627 // Send the close message response to the remote endpoint. 628 sendCloseMessage(closeReason); 629 fireEndpointOnClose(closeReason); 630 631 // Mark the session as fully closed. 632 state.set(State.CLOSED); Before line 632 session has state "OPEN" Line 628 through stack writeMessagePart:469, WsRemoteEndpointImplBase (org.apache.tomcat.websocket) sendMessageBlock:308, WsRemoteEndpointImplBase (org.apache.tomcat.websocket) sendMessageBlock:257, WsRemoteEndpointImplBase (org.apache.tomcat.websocket) sendCloseMessage:718, WsSession (org.apache.tomcat.websocket) onClose:628, WsSession (org.apache.tomcat.websocket) makes org.apache.tomcat.websocket.WsRemoteEndpointImplBase#closed = true What happens when someone attempt so send message through websocket between line 629 and 632, when websocket wsSession.isOpen = true and wsSession.state = CLOSING? Control goes to org.apache.tomcat.websocket.WsRemoteEndpointImplBase#writeMessagePart: void writeMessagePart(MessagePart mp) { if (closed) { throw new IllegalStateException(sm.getString("wsRemoteEndpoint.closed")); so, if someone attempt so send message between 628 and 631, he get: IllegalStateException. And should: IOException Javadoc for jakarta.websocket.RemoteEndpoint.Basic#sendText(java.lang.String) clearly states that send text may throw IllegalArgumentException – if text is null. IOException – if an I/O error occurs during the sending of the message. No IllegalStateException -- You are receiving this mail because: You are the assignee for the bug. --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
