Class NotFoundException: javax.servlet.AsyncContext in Jetty hello world in eclipse

Question

I followed the link http://wiki.eclipse.org/Jetty/Tutorial/Jetty_HelloWorld tutorial (with Eclipse). and also looked at the existing stackoverflow here

I use the combined pier 8.0.0.jar and 8.1.3.jar along with servlet-api-2.5.jar. I added these 2 jars to the class path and also included slf4j-simple-1.6.4.jar.

I'm still getting

`
2012-05-23 15: 23: 06.813: WARN: oeji.nio: java.lang.NoClassDefFoundError: javax / servlet / AsyncContext

at org.eclipse.jetty.server.HttpConnection.<init>(HttpConnection.java:155) at org.eclipse.jetty.server.AsyncHttpConnection.<init>(AsyncHttpConnection.java:19) at org.eclipse.jetty.server.nio.SelectChannelConnector$SelectChannelHttpConnection.<init>(SelectChannelConnector.java:309) at org.eclipse.jetty.server.nio.SelectChannelConnector$SelectChannelHttpConnection.<init>(SelectChannelConnector.java:303) at org.eclipse.jetty.server.nio.SelectChannelConnector.newConnection(SelectChannelConnector.java:286) at org.eclipse.jetty.server.nio.SelectChannelConnector$ConnectorSelectorManager.newConnection(SelectChannelConnector.java:364) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.<init>(SelectChannelEndPoint.java:71) at org.eclipse.jetty.server.nio.SelectChannelConnector.newEndPoint(SelectChannelConnector.java:274) at org.eclipse.jetty.server.nio.SelectChannelConnector$ConnectorSelectorManager.newEndPoint(SelectChannelConnector.java:370) at org.eclipse.jetty.io.nio.SelectorManager$SelectSet.createEndPoint(SelectorManager.java:938) at org.eclipse.jetty.io.nio.SelectorManager$SelectSet.doSelect(SelectorManager.java:497) at org.eclipse.jetty.io.nio.SelectorManager$1.run(SelectorManager.java:283) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533) at java.lang.Thread.run(Thread.java:679) Caused by: java.lang.ClassNotFoundException: javax.servlet.AsyncContext at java.net.URLClassLoader$1.run(URLClassLoader.java:217) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at java.lang.ClassLoader.loadClass(ClassLoader.java:321) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294) at java.lang.ClassLoader.loadClass(ClassLoader.java:266) at org.eclipse.jetty.server.HttpConnection.<init>(HttpConnection.java:155) at org.eclipse.jetty.server.AsyncHttpConnection.<init>(AsyncHttpConnection.java:19) at org.eclipse.jetty.server.nio.SelectChannelConnector$SelectChannelHttpConnection.<init>(SelectChannelConnector.java:309) at org.eclipse.jetty.server.nio.SelectChannelConnector$SelectChannelHttpConnection.<init>(SelectChannelConnector.java:303) at org.eclipse.jetty.server.nio.SelectChannelConnector.newConnection(SelectChannelConnector.java:286) at org.eclipse.jetty.server.nio.SelectChannelConnector$ConnectorSelectorManager.newConnection(SelectChannelConnector.java:364) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.<init>(SelectChannelEndPoint.java:71) at org.eclipse.jetty.server.nio.SelectChannelConnector.newEndPoint(SelectChannelConnector.java:274) at org.eclipse.jetty.server.nio.SelectChannelConnector$ConnectorSelectorManager.newEndPoint(SelectChannelConnector.java:370) at org.eclipse.jetty.io.nio.SelectorManager$SelectSet.createEndPoint(SelectorManager.java:938) at org.eclipse.jetty.io.nio.SelectorManager$SelectSet.doSelect(SelectorManager.java:497) at org.eclipse.jetty.io.nio.SelectorManager$1.run(SelectorManager.java:283) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533) at java.lang.Thread.run(Thread.java:679) 

`

Any thoughts?

Answer 1

I think you need api 3 servlet, not 2.5. AsyncContext was introduced in Servlet 3.0, it is not in version 2.5.