[undertow-dev] StackOverflowError on AbstractFramedChannel

Hi, Using Undertow 1.3.23.Final, I /sometimes/ get this error, when running my WebSocket tests : ------------------------------------------ 2016-08-02 21:56:15 [ERROR] XNIO001007: A channel event listener threw an exception ~ Caller+0 at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:94) java.lang.StackOverflowError: null at ch.qos.logback.classic.pattern.ThrowableProxyConverter.subjoinSTEPArray(ThrowableProxyConverter.java:197) at ch.qos.logback.classic.pattern.ThrowableProxyConverter.recursiveAppend(ThrowableProxyConverter.java:161) at ch.qos.logback.classic.pattern.ThrowableProxyConverter.throwableProxyToString(ThrowableProxyConverter.java:151) at ch.qos.logback.classic.pattern.ThrowableProxyConverter.convert(ThrowableProxyConverter.java:145) at ch.qos.logback.classic.pattern.ThrowableProxyConverter.convert(ThrowableProxyConverter.java:1) at ch.qos.logback.core.pattern.FormattingConverter.write(FormattingConverter.java:36) at ch.qos.logback.core.pattern.PatternLayoutBase.writeLoopOnConverters(PatternLayoutBase.java:114) at ch.qos.logback.classic.PatternLayout.doLayout(PatternLayout.java:141) at ch.qos.logback.classic.PatternLayout.doLayout(PatternLayout.java:1) at ch.qos.logback.core.encoder.LayoutWrappingEncoder.doEncode(LayoutWrappingEncoder.java:130) at ch.qos.logback.core.OutputStreamAppender.writeOut(OutputStreamAppender.java:187) at ch.qos.logback.core.OutputStreamAppender.subAppend(OutputStreamAppender.java:212) at ch.qos.logback.core.OutputStreamAppender.append(OutputStreamAppender.java:100) at ch.qos.logback.core.UnsynchronizedAppenderBase.doAppend(UnsynchronizedAppenderBase.java:84) at ch.qos.logback.core.spi.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:48) at ch.qos.logback.classic.Logger.appendLoopOnAppenders(Logger.java:270) at ch.qos.logback.classic.Logger.callAppenders(Logger.java:257) at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:421) at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:383) at ch.qos.logback.classic.Logger.log(Logger.java:765) at sun.reflect.GeneratedMethodAccessor22.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.jboss.logging.Slf4jLocationAwareLogger.doLog(Slf4jLocationAwareLogger.java:89) at org.jboss.logging.Slf4jLocationAwareLogger.doLogf(Slf4jLocationAwareLogger.java:82) at org.jboss.logging.Logger.logf(Logger.java:2445) at org.xnio._private.Messages_$logger.listenerException(Messages_$logger.java:923) at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:94) at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener$2.run(AbstractFramedChannel.java:981) at io.undertow.server.protocol.framed.AbstractFramedChannel.runInIoThread(AbstractFramedChannel.java:235) at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener.handleEvent(AbstractFramedChannel.java:978) at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener.handleEvent(AbstractFramedChannel.java:937) at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener$2.run(AbstractFramedChannel.java:981) at io.undertow.server.protocol.framed.AbstractFramedChannel.runInIoThread(AbstractFramedChannel.java:235) at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener.handleEvent(AbstractFramedChannel.java:978) at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener.handleEvent(AbstractFramedChannel.java:937) at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener$2.run(AbstractFramedChannel.java:981) at io.undertow.server.protocol.framed.AbstractFramedChannel.runInIoThread(AbstractFramedChannel.java:235) at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener.handleEvent(AbstractFramedChannel.java:978) at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener.handleEvent(AbstractFramedChannel.java:937) at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener$2.run(AbstractFramedChannel.java:981) at io.undertow.server.protocol.framed.AbstractFramedChannel.runInIoThread(AbstractFramedChannel.java:235) at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener.handleEvent(AbstractFramedChannel.java:978) at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener.handleEvent(AbstractFramedChannel.java:937) at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener$2.run(AbstractFramedChannel.java:981) at io.undertow.server.protocol.framed.AbstractFramedChannel.runInIoThread(AbstractFramedChannel.java:235) at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener.handleEvent(AbstractFramedChannel.java:978) at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener.handleEvent(AbstractFramedChannel.java:937) at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) ... ------------------------------------------ The ------------------------------------------ at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener$2.run(AbstractFramedChannel.java:981) at io.undertow.server.protocol.framed.AbstractFramedChannel.runInIoThread(AbstractFramedChannel.java:235) at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener.handleEvent(AbstractFramedChannel.java:978) at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameCloseListener.handleEvent(AbstractFramedChannel.java:937) at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92) ------------------------------------------ part is repeated a lot of times before a stack overflow is reached. I'm currently not able to reproduce the error on demand, most of the time it works just fine. I'm still investigating. I'd like to know if someone has already seen this? Any potential causes you may think of? Thanks, Julien