https://bz.apache.org/bugzilla/show_bug.cgi?id=61932
Bug ID: 61932
Summary: IllegalStateException when calling
asyncContext.dispatch() in a non container thread with
ReadListener used
Product: Tomcat 8
Version: 8.5.24
Hardware: PC
OS: Mac OS X 10.1
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ----
Tomcat throws below exception when I use ReadListener and call
AsyncContext.dispatch("/url") in another thread.
Dec 27, 2017 3:35:46 PM org.apache.coyote.AbstractProtocol$ConnectionHandler
process
严重: Error reading request, ignored
java.lang.IllegalStateException: Calling [asyncOperation()] is not valid for a
request with Async state [DISPATCHING]
at
org.apache.coyote.AsyncStateMachine.asyncOperation(AsyncStateMachine.java:253)
at
org.apache.coyote.AbstractProcessor.dispatchNonBlockingRead(AbstractProcessor.java:505)
at
org.apache.coyote.AbstractProcessor.dispatch(AbstractProcessor.java:200)
at
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:53)
at
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
at
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Dec 27, 2017 3:35:46 PM org.apache.catalina.connector.CoyoteAdapter
checkRecycled
信息: Encountered a non-recycled request and recycled it forcedly.
org.apache.catalina.connector.CoyoteAdapter$RecycleRequiredException
at
org.apache.catalina.connector.CoyoteAdapter.checkRecycled(CoyoteAdapter.java:501)
at
org.apache.coyote.http11.Http11Processor.recycle(Http11Processor.java:1707)
at
org.apache.coyote.AbstractProtocol$ConnectionHandler.release(AbstractProtocol.java:972)
at
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:940)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1459)
at
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Below is the code for reproducing the bug:
@WebServlet(value = "/async-read2", asyncSupported = true)
public class AsyncReadServlet2 extends HttpServlet {
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
AsyncContext asyncCtx = req.startAsync();
ServletInputStream is = req.getInputStream();
is.setReadListener(new ReadListener() {
@Override
public void onDataAvailable() {
try {
byte buffer[] = new byte[1 * 1024];
while (is.isReady() && !is.isFinished()) {
int length = is.read(buffer);
if (length == -1 && is.isFinished()) {
return;
}
}
} catch (IOException ex) {
ex.printStackTrace();
}
}
@Override
public void onAllDataRead() {
}
@Override
public void onError(Throwable t) {
}
});
new Thread(() -> {
try {
Thread.sleep(10000L);
} catch (InterruptedException e) {
e.printStackTrace();
}
asyncCtx.dispatch("/error");
}).start();
}
}
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