Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via tomcat-dev by Rainer Jung, 2 years ago
This exception has no message.
via tomcat-dev by Rainer Jung, 1 year ago
This exception has no message.
via zookeeper-user by Ahmed H., 11 months ago
This exception has no message.
via zookeeper-user by Neha Narkhede, 11 months ago
This exception has no message.
via zookeeper-user by Ahmed H., 11 months ago
This exception has no message.
java.nio.channels.CancelledKeyException at sun.nio.ch.SelectionKeyImpl.ensureValid(SelectionKeyImpl.java:73) at sun.nio.ch.SelectionKeyImpl.interestOps(SelectionKeyImpl.java:82) at org.apache.tomcat.util.net.NioSelectorPool.read(NioSelectorPool.java:260) at org.apache.tomcat.util.net.NioSelectorPool.read(NioSelectorPool.java:216) at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1267) at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.read(NioEndpoint.java:1221) at org.apache.coyote.http2.Http2UpgradeHandler.fill(Http2UpgradeHandler.java:1065) at org.apache.coyote.http2.Http2Parser$Input.fill(Http2Parser.java:560) at org.apache.coyote.http2.Http2Parser.readConnectionPreface(Http2Parser.java:519) at org.apache.coyote.http2.Http2UpgradeHandler.init(Http2UpgradeHandler.java:226) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:784) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1524) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745)