WsWebSocketContainer#connectToServer throws BufferOverflowException ------------------------------------------------------------------- Key: JBWEB-317 URL: https://issues.redhat.com/browse/JBWEB-317 Project: JBoss Web Issue Type: Bug Components: Tomcat Affects Versions: JBossWeb-7.5.0.GA Reporter: Juho Tykkälä Assignee: Remy Maucherat Priority: Major Labels: WebSocket, jbossweb, tomcat, websocket, websockets WsWebSocketContainer#connectToServer throws BufferOverflowException when headers supplied by ClientEndpointConfig.Configurator#beforeRequest are too large. {code:java} Exception in thread "main" java.nio.BufferOverflowException at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:189) at java.nio.ByteBuffer.put(ByteBuffer.java:859) at org.apache.tomcat.websocket.WsWebSocketContainer.addHeader(WsWebSocketContainer.java:755) at org.apache.tomcat.websocket.WsWebSocketContainer.createRequest(WsWebSocketContainer.java:736) at org.apache.tomcat.websocket.WsWebSocketContainer.connectToServerRecursive(WsWebSocketContainer.java:275) at org.apache.tomcat.websocket.WsWebSocketContainer.connectToServer(WsWebSocketContainer.java:195) {code} In our application, we are forwarding an Authorization header/token of close to 4000 bytes, which when combined with other headers results in a request larger than the 4096 allocated to the ByteBuffer in WsWebSocketContainer#createRequest. Original bug at Apache BugZilla https://bz.apache.org/bugzilla/show_bug.cgi?id=62596