Hi,
I have a problem. Please help me finding out if this is a bug or my use
case is wrong.
There are three bundles:
- API bundle: Contains an interface A
- Core bundle: Contains the implementation of A and provides it as a
service
- Servlet bundle:
- Contains Servlet classes
- Contains a ServletActivator class that has init, destroy method and
A property
- A blueprint configuration that sets the A property in the
ServletActivator and calls the init method
- The init method instantiates the servlet and passes it to
org.osgi.service.http.HttpService
I start Equinox, everything is fine. I can see the servlet running well.
I say an update command on the Core bundle and I see that the service is
unregistered and registered again provided by this bundle. After an http
request will stop at the line below until a timeout:
"qtp1313052129-27" prio=6 tid=0x000000000873d800 nid=0x2498 in
Object.wait() [0x000000001105d000]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
at
org.apache.aries.blueprint.container.ReferenceRecipe.getService(ReferenceRecipe.java:202)
- locked <0x0000000782888a68> (a java.lang.Object)
at
org.apache.aries.blueprint.container.ReferenceRecipe.access$000(ReferenceRecipe.java:56)
at
org.apache.aries.blueprint.container.ReferenceRecipe$ServiceDispatcher.call(ReferenceRecipe.java:290)
at
Proxy18044d63_3609_456d_82b5_803c25785628.getCurrentPresenseForAdspace(Unknown
Source)
at
..................................MyServlet.service(MyServlet.java:76)
at
org.eclipse.equinox.http.servlet.internal.ServletRegistration.handleRequest(ServletRegistration.java:90)
at
org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:109)
at
org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:67)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
at
org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:598)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:486)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:229)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1065)
at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:413)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:192)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:999)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
at
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)
at org.eclipse.jetty.server.Server.handle(Server.java:350)
at
org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:454)
at
org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:890)
at
org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:944)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:630)
at
org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:230)
at
org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:77)
at
org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:620)
at
org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:46)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:603)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:538)
In two of my applications it is always reproducable. Please let me know if
you see the problem based on the stacktrace by looking at it or if I should
provide a sample applicaiton. It would be really nice to solve this before
1.0.0 release comes out as this really stops our TDD development workflow.
There is another problem based on this:
If I update the Servlet bundle just after updating the core bundle
everything works fine. However if I update the Core bundle, make an http
request and than try updating the web bundle will be locked until the
timeout (basically I cannot process any osgi related command in the
container as a bundle stopping is locked).
Thanks and regards,
Balazs Zsoldos
