Re: [equinox-dev] Caused by: org.osgi.framework.BundleException: State c

[Thomas Watson <tjwatson@xxxxxxxxxx>]

Hi

Lukasz's solution assumes that the bundle you are installing will eventually enter the RESOLVED state. This is not going to happen automatically. You would have to run a PackageAdmin.resolveBundles to make the bundle resolve. The actual exception seems to be occurring because the second bundle you are installing and starting is trying to start the original bundle again. Since this is all happening on the same thread the Framework does not allow the second lifecycle operation proceed because the thread is already in the process of starting the first bundle.

Tom



Lukasz Bobowiec ---04/04/2008 05:41:42 AM---Hi Jacek,

From:	Lukasz Bobowiec <Lukasz.Bobowiec@xxxxxxxxxx>
To:	jacek@xxxxxxxxxxxxxxxx
Cc:	equinox-dev@xxxxxxxxxxx
Date:	04/04/2008 05:41 AM
Subject:	Re: [equinox-dev] Caused by: org.osgi.framework.BundleException: State change in progress for bundle...by thread "OSGi Console"

---

Hi Jacek, 

I think this is some threading issue. First of all remember that in the start/stop methods of BundleActivator you shouldn't spawn a long running task (just use a new Thread to do this). In the javadoc to org.osgi.framework.BundleActivator#start() method is written: 

Called when this bundle is started so the Framework can perform the bundle-specific activities necessary to start this bundle. This method can be used to register services or to allocate any resources that this bundle needs.

This method must complete and return to its caller in a timely manner.

Otherwise you can block the OSGi console thread.

I suspect that installing and resolving the Spring bundle may consume some amount of time and it should be in the "start" method. Moreover nesting a start of another bundle in your bundle is not the best idea. I am wondering if you are using OSGi console and you are able to install and start your bundle why you don't install and start the spring bundle?

Anyway I think that BundleListener resolves your issue:

package pl.jaceklaskowski.osgi;

import java.util.logging.Level;
import java.util.logging.Logger;

import org.osgi.framework.Bundle;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleEvent;
import org.osgi.framework.BundleException;
import org.osgi.framework.BundleListener;

public class AktywatorPakunku implements BundleActivator, BundleListener {

Logger log = Logger.getLogger(AktywatorPakunku.class.getName());

private Bundle bundle;

public void start(BundleContext bundleContext) throws Exception {
// add bundle listener
bundleContext.addBundleListener(this);

bundle = bundleContext.installBundle(

"file:c:/projs/osgi/spring-osgi-activationpolicy/target/spring-osgi-activationpolicy-1.0.jar");
long bundleId = bundle.getBundleId();
String bundleLocation = bundle.getLocation();
String bundleSymbolicName = bundle.getSymbolicName();
System.out.println("------------------------------------");
System.out.println("Charakterystyka zainstalowanego pakunku:");
System.out.println(" Identyfikator: " + bundleId);
System.out.println(" Identyfikator położenia: " + bundleLocation);
System.out.println(" Nazwa symboliczna: " + bundleSymbolicName);
System.out.println("------------------------------------");
}

public void stop(BundleContext bundleContext) throws Exception {
// remove bundle listener
bundleContext.removeBundleListener(this);

log.info("stop() wykonano - czyszczę po sobie");
}

public void bundleChanged(BundleEvent event) {
if (event.getType() == Bundle.RESOLVED && event.getBundle() == bundle) {
try {
System.out.println("Startuję pakunek " + bundle.getSymbolicName());
bundle.start();
} catch (BundleException e) {
log.log(Level.SEVERE, e.getMessage());
}
}
}

}

---
Best regards,

Lukasz Bobowiec
Software Engineer, Common Agent Services
lukasz.bobowiec@xxxxxxxxxx
(+48 12) 628 9882

IBM SWG Lab, Cracow, Poland
IBM Polska Sp. z o.o. oddział w Krakowie
ul. Armii Krajowej 18
30 -150 Kraków

NIP: 526-030-07-24
Sąd Rejonowy dla m.st. Warszawy, XIII Wydział Gospodarczy KRS
KRS 0000012941, Kapitał zakładowy: 3.073.600 PLN

"Jacek Laskowski" <jacek@xxxxxxxxxxxxxxxx>
Sent by: equinox-dev-bounces@xxxxxxxxxxx

2008-04-04 08:55

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Subject	[equinox-dev] Caused by: org.osgi.framework.BundleException: State change in progress for bundle...by thread "OSGi Console"

Hi,

Why do I face the following exception:

jlaskowski@work /cygdrive/c/projs/osgi/spring-osgi-install
$ java -jar c:/apps/eclipse/plugins/org.eclipse.osgi_3.4.0.v20080205.jar
-console

osgi> ss

Framework is launched.

id      State       Bundle
0       ACTIVE      org.eclipse.osgi_3.4.0.v20080205

osgi> install file:c:/projs/osgi/spring-osgi-install/target/spring-osgi-install-1.0.jar
Bundle id is 1

osgi> start 1
2008-04-03 22:26:06 pl.jaceklaskowski.osgi.AktywatorPakunku start
------------------------------------
Charakterystyka zainstalowanego pakunku:
  Identyfikator: 2
  Identyfikator położenia:
file:c:/projs/osgi/spring-osgi-activationpolicy/target/spring-osgi-activationpolicy-1.0.jar
  Nazwa symboliczna: pl.jaceklaskowski.osgi.spring-osgi-activationpolicy
------------------------------------
Startuj¦Ö pakunek pl.jaceklaskowski.osgi.spring-osgi-activationpolicy
2008-04-03 22:26:07 pl.jaceklaskowski.osgi.AktywatorPakunku start
------------------------------------
Charakterystyka zainstalowanego pakunku:
  Identyfikator: 2
  Identyfikator położenia:
file:c:/projs/osgi/spring-osgi-activationpolicy/target/spring-osgi-activationpolicy-1.0.jar
  Nazwa symboliczna: pl.jaceklaskowski.osgi.spring-osgi-activationpolicy
------------------------------------
Startuję pakunek pl.jaceklaskowski.osgi.spring-osgi-activationpolicy
org.osgi.framework.BundleException: Exception in
 pl.jaceklaskowski.osgi.AktywatorPakunku.start() of bundle
 pl.jaceklaskowski.osgi.spring-osgi-install.
        at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:1018)
        at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:974)
        at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:346)
        at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:265)
        at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:257)
        at org.eclipse.osgi.framework.internal.core.FrameworkCommandProvider._start(FrameworkCommandProvider.java:257)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at
org.eclipse.osgi.framework.internal.core.FrameworkCommandInterpreter.execute(FrameworkCommandInterpreter.java:150)
        at org.eclipse.osgi.framework.internal.core.FrameworkConsole.docommand(FrameworkConsole.java:298)
        at org.eclipse.osgi.framework.internal.core.FrameworkConsole.console(FrameworkConsole.java:283)
        at org.eclipse.osgi.framework.internal.core.FrameworkConsole.run(FrameworkConsole.java:219)
        at java.lang.Thread.run(Thread.java:595)
Caused by: org.osgi.framework.BundleException: Exception in
pl.jaceklaskowski.osgi.AktywatorPakunku.start() of bundle
pl.jaceklaskowski.osgi.spring-osgi-activationpolicy.
        at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:1018)
        at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:974)
        at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:346)
        at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:265)
        at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:257)
        at pl.jaceklaskowski.osgi.AktywatorPakunku.start(AktywatorPakunku.java:26)
        at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:999)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:993)
        ... 14 more
Caused by: org.osgi.framework.BundleException:
 State change in progress for bundle
 "file:c:/projs/osgi/spring-osgi-activationpolicy/target/spring-osgi-activationpolicy-1.0.jar"
 by thread "OSGi Console".
        at org.eclipse.osgi.framework.internal.core.AbstractBundle.beginStateChange(AbstractBundle.java:1143)
        at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:263)
        at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:257)
        at pl.jaceklaskowski.osgi.AktywatorPakunku.start(AktywatorPakunku.java:26)
        at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:999)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:993)
        ... 22 more
Caused by: org.eclipse.osgi.framework.internal.core.AbstractBundle$BundleStatusException
        ... 29 more
...
osgi> ss

Framework is launched.

id      State       Bundle
0       ACTIVE      org.eclipse.osgi_3.4.0.v20080205
1       RESOLVED    pl.jaceklaskowski.osgi.spring-osgi-install_1.0.0
2       RESOLVED    pl.jaceklaskowski.osgi.spring-osgi-activationpolicy_1.0.0

osgi> exit

upon running the following activator:

package pl.jaceklaskowski.osgi;

import java.util.logging.Logger;

import org.osgi.framework.Bundle;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;

public class AktywatorPakunku implements BundleActivator {

    Logger log = Logger.getLogger(AktywatorPakunku.class.getName());

    public void start(BundleContext bundleContext) throws Exception {
        Bundle bundle = bundleContext.installBundle(

"file:c:/projs/osgi/spring-osgi-activationpolicy/target/spring-osgi-activationpolicy-1.0.jar");
        long bundleId = bundle.getBundleId();
        String bundleLocation = bundle.getLocation();
        String bundleSymbolicName = bundle.getSymbolicName();
        System.out.println("------------------------------------");
        System.out.println("Charakterystyka zainstalowanego pakunku:");
        System.out.println("  Identyfikator: " + bundleId);
        System.out.println("  Identyfikator położenia: " + bundleLocation);
        System.out.println("  Nazwa symboliczna: " + bundleSymbolicName);
        System.out.println("------------------------------------");
        System.out.println("Startuję pakunek " + bundleSymbolicName);
        bundle.start();
    }

    public void stop(BundleContext bundleContext) throws Exception {
        log.info("stop() wykonano - czyszczę po sobie");
    }

}

where spring-osgi-activationpolicy-1.0.jar is a bundle with
Bundle-ActivationPolicy: lazy I meant to test out.

Jacek

-- 
Jacek Laskowski
http://www.JacekLaskowski.pl
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