/*
* Licensed to the Apache Software Foundation ( ASF ) under one or more
* contributor license agreements . See the NOTICE file distributed with
* this work for additional information regarding copyright ownership .
* The ASF licenses this file to You under the Apache License , Version 2 . 0
* ( the " License " ) ; you may not use this file except in compliance with
* the License . You may obtain a copy of the License at
*
* http : //www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing , software
* distributed under the License is distributed on an " AS IS " BASIS ,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND , either express or implied .
* See the License for the specific language governing permissions and
* limitations under the License .
*/
package org.apache.coyote.http2;
import java.io.IOException;
import java.io.PrintWriter;
import java.nio.ByteBuffer;
import java.util.concurrent.atomic.AtomicInteger;
import jakarta.servlet.AsyncContext;
import jakarta.servlet.AsyncEvent;
import jakarta.servlet.AsyncListener;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.junit.Assert ;
import org.junit.Test;
import org.apache.catalina.Context;
import org.apache.catalina.Wrapper;
import org.apache.catalina.startup.Tomcat;
/*
* Based on
* https : //bz.apache.org/bugzilla/show_bug.cgi?id=66841
*/
public class TestAsyncError extends Http2TestBase {
@Test
public void testError() throws Exception {
enableHttp2();
Tomcat tomcat = getTomcatInstance();
Context ctxt = tomcat.addContext("" , null );
Tomcat.addServlet(ctxt, "simple" , new SimpleServlet());
ctxt.addServletMappingDecoded("/simple" , "simple" );
Wrapper w = Tomcat.addServlet(ctxt, "async" , new AsyncErrorServlet());
w.setAsyncSupported(true );
ctxt.addServletMappingDecoded("/async" , "async" );
tomcat.start();
openClientConnection();
doHttpUpgrade();
sendClientPreface();
validateHttp2InitialResponse();
// Send request
byte [] frameHeader = new byte [9 ];
ByteBuffer headersPayload = ByteBuffer.allocate(128 );
buildGetRequest(frameHeader, headersPayload, null , 3 , "/async" );
writeFrame(frameHeader, headersPayload);
// Read response
// Headers
parser.readFrame();
// Read 3 'events'
parser.readFrame();
parser.readFrame();
parser.readFrame();
// Reset the stream
sendRst(3 , Http2Error.CANCEL.getCode());
int count = 0 ;
while (count < 50 && TestListener.getErrorCount() == 0 ) {
count++;
Thread .sleep(100 );
}
Assert .assertEquals(1 , TestListener.getErrorCount());
}
private static final class AsyncErrorServlet extends HttpServlet {
private static final long serialVersionUID = 1 L;
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
final AsyncContext asyncContext = req.startAsync();
TestListener testListener = new TestListener();
asyncContext.addListener(testListener);
MessageGenerator msgGenerator = new MessageGenerator(resp);
asyncContext.start(msgGenerator);
}
}
private static final class MessageGenerator implements Runnable {
private final HttpServletResponse resp;
MessageGenerator(HttpServletResponse resp) {
this .resp = resp;
}
@Override
public void run() {
try {
resp.setContentType("text/plain" );
resp.setCharacterEncoding("UTF-8" );
PrintWriter pw = resp.getWriter();
while (true ) {
pw.println("OK" );
pw.flush();
if (pw.checkError()) {
throw new IOException();
}
Thread .sleep(1000 );
}
} catch (IOException | InterruptedException e) {
// Expect async error handler to handle clean-up
}
}
}
private static final class TestListener implements AsyncListener {
private static final AtomicInteger errorCount = new AtomicInteger(0 );
public static int getErrorCount() {
return errorCount.get();
}
@Override
public void onComplete(AsyncEvent event) throws IOException {
// NO-OP
}
@Override
public void onTimeout(AsyncEvent event) throws IOException {
// NO-OP
}
@Override
public void onError(AsyncEvent event) throws IOException {
errorCount.incrementAndGet();
event.getAsyncContext().complete();
}
@Override
public void onStartAsync(AsyncEvent event) throws IOException {
// NO-OP
}
}
}
Messung V0.5 in Prozent C=93 H=79 G=86
¤ Dauer der Verarbeitung: 0.13 Sekunden
(vorverarbeitet am 2026-10-02)
¤
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