Janus Issues

When the Janus kernel is trying to create the default mailbox on Android, the class javax.management.Role is not found.

junit.framework.AssertionFailedError: ChannelInteractable not found: ::0abcfa42-5bc2-4978-8907-f2127ca655f0 at junit.framework.Assert.fail(Assert.java:47) at org.janusproject.kernel.agent.KernelTest$ChannelListenerStub.assertLaunched(KernelTest.java:462)

At: Class<? extends Signal> t = listener.getSupportedSignalType(); if (t.isAssignableFrom(this.topClass))

launch twice: GRAVE: Noyau - Sévérité=CANCEL; Source=899599744; Code=-1; Message=null; Exception=null

example: ATTENTION: L'agent récepteur du message n'a pas été trouvé: DC Bus::ec0991f9-8416-4653-bc1c-c455eca5fc89

An example of use :

public void onSignal(Signal signal) { this.currentTime = (Double) signal.getValues()[0];

6 avr. 2012 12:08:39 org.janusproject.kernel.util.prototype.PrototypeValidator check GRAVE: TOO_MANY_MANDATORY_PARAMETER GRAVE: TOO_MANY_MANDATORY_PARAMETER org.janusproject.kernel.util.prototype.PrototypeException: TOO_MANY_MANDATORY_PARAMETER at org.janusproject.kernel.util.prototype.PrototypeValidator.check(PrototypeValidator.java:314) at org.janusproject.kernel.util.prototype.PrototypeValidator.validateInputs(PrototypeValidator.java:150) at org.janusproject.kernel.agent.AgentActivationPrototypeValidator.validateInputParameters(AgentActivationPrototypeValidator.java:59) at org.janusproject.kernel.agent.Agent.proceedPrivateInitialization(Agent.java:780) at org.janusproject.kernel.agent.KernelAgent$AgentThread.run(KernelAgent.java:1342) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

Do I use a mailbox differently with heavy agent ? This error occurs only if I'm working with heavy agent:

GRAVE: Sévérité=ERROR; Source=java.util.AbstractList$Itr; Code=-2; Message=null; Exception=java.util.ConcurrentModificationException java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372) java.util.AbstractList$Itr.next(AbstractList.java:343) org.janusproject.kernel.util.directaccess.SafeIterator.next(SafeIterator.java:131) org.janusproject.kernel.util.autoremove.AutoremoveIterator.searchNext(AutoremoveIterator.java:55) org.janusproject.kernel.util.autoremove.AutoremoveIterator.<init>(AutoremoveIterator.java:48) org.janusproject.kernel.mailbox.ThreadSafeMailbox.iterator(ThreadSafeMailbox.java:276) org.janusproject.kernel.mailbox.AbstractMailbox.iterator(AbstractMailbox.java:131) fr.utbm.set.grid.micro.organization.TransmitterRole.transmit(TransmitterRole.java:127) fr.utbm.set.grid.micro.organization.TransmitterRole.Run(TransmitterRole.java:100) fr.utbm.set.grid.micro.organization.TransmitterRole.live(TransmitterRole.java:86) org.janusproject.kernel.crio.core.Role.proceedPrivateBehaviour(Role.java:663) org.janusproject.kernel.crio.core.RoleActivator.executeBehaviour(RoleActivator.java:81) org.janusproject.kernel.schedule.AbstractActivableContainer.live(AbstractActivableContainer.java:256) org.janusproject.kernel.agent.Agent.live(Agent.java:812) fr.utbm.set.grid.agent.DCBusAgent.live(DCBusAgent.java:168) org.janusproject.kernel.agent.Agent.proceedPrivateBehaviour(Agent.java:872) org.janusproject.kernel.agent.KernelAgent$AgentThread.run(KernelAgent.java:1366) java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) java.util.concurrent.FutureTask.run(FutureTask.java:138) java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

Access to all GroupAddresses created from Kernel

Since JDK 1.5, the + operator is optimized. It invokes the StringBuilder class. StringBuilder class is equivalent to StringBuffer, but the first is not thread-safe, the second is thread-safe (synchronized).

java.util.concurrent.TimeoutException: BREAKING_DOWN at org.janusproject.kernel.agent.KernelAgentTest.assertDead(KernelAgentTest.java:137) at org.janusproject.kernel.agent.KernelAgentTest.testShutdownNow(KernelAgentTest.java:172) 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:597) at junit.framework.TestCase.runTest(TestCase.java:164) at junit.framework.TestCase.runBare(TestCase.java:130) at junit.framework.TestResult$1.protect(TestResult.java:106) at junit.framework.TestResult.runProtected(TestResult.java:124) at junit.framework.TestResult.run(TestResult.java:109) at junit.framework.TestCase.run(TestCase.java:120) at junit.framework.TestSuite.runTest(TestSuite.java:230) at junit.framework.TestSuite.run(TestSuite.java:225) at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

The utility class LocalizedString from Janus should be moved into the Arakhnê VM utilities. First it will be possible to support different resource management methods (standard JRE, or Android for example).

java.lang.Thread.run(Thread.java:662)java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to [Lfr.utbm.set.grid.util.DataInfo;

for (Message message : this.getFirstMessage(mycomparator) // return the "first" message thanks to the comparison

The first added listener on the signal is invoked when the signal is fired.

Exemple :

The end user is expecting to find the class which is corresponding to the Group concept in the metamodel. But even if this class exists, it is not visible for the end user. The GroupDescription replied by the kernel corresponds to the end-user view of the group.

Move the source code of Janus from SVN server to GIT server.

The pause() function in the Agent class should be renamed sleep().

A smart-grid requires dynamic connections which influence the topology of the grid.

An implementation of Janus on Android OS was provided by UTBM students.

Invalid access to the JBoss repository:

"| ATTENTION : L'agent récepteur du message na pas été trouvé: {0}"

Example :

Sévérité=ERROR; Source=org.janusproject.kernel.agent.Agent; Code=-2; Message=null; Exception=java.lang.NullPointerException org.janusproject.kernel.agent.Agent.getCRIOContext(Agent.java:282) org.janusproject.kernel.crio.core.RolePlayer.getOrganization(RolePlayer.java:865) org.janusproject.kernel.crio.core.RolePlayer.getOrCreateGroup(RolePlayer.java:1047) test.fr.utbm.set.grid.agent.GridAgent.activate(GridAgent.java:69) org.janusproject.kernel.agent.Agent.proceedPrivateInitialization(Agent.java:727) org.janusproject.kernel.agent.AgentActivator.activateInit(AgentActivator.java:73) org.janusproject.kernel.schedule.AbstractActivableContainer.activate(AbstractActivableContainer.java:213) test.fr.utbm.set.grid.MicroGridScheduler.activateInit(MicroGridScheduler.java:32) org.janusproject.kernel.schedule.AbstractActivableContainer.activate(AbstractActivableContainer.java:213) org.janusproject.kernel.agent.ActivatorAgent.activate(ActivatorAgent.java:178) org.janusproject.kernel.agent.Agent.proceedPrivateInitialization(Agent.java:727) org.janusproject.kernel.agent.ActivatorAgent.proceedPrivateInitialization(ActivatorAgent.java:168) org.janusproject.kernel.agent.KernelAgent$AgentThread.run(KernelAgent.java:1231) java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) java.util.concurrent.FutureTask.run(FutureTask.java:138) java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

It is very important for us to interact with the community in order to meet the expected standards. And the issue tracking is a big step towards this objective.

if we can not open this installation of jira we can request an open source license for janus.

Other good option is github.com which provides all most all services we need: issues, git based versioning, etc.

Please Advise.

Janus does not compile on Maven 3 due to an API compatibility problem of org.arakhne.afc:maven-license-install-plugin

INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.arakhne.afc:maven-license-install-plugin:1.1:installlicense (execution1) on project janus: Execution execution1 of goal org.arakhne.afc:maven-license-install-plugin:1.1:installlicense failed: An API incompatibility was encountered while executing org.arakhne.afc:maven-license-install-plugin:1.1:installlicense: java.lang.NoSuchMethodError: org.apache.maven.artifact.ArtifactUtils.artifactId(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String; [ERROR] ----------------------------------------------------- [ERROR] realm = plugin>org.arakhne.afc:maven-license-install-plugin:1.1 [ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy [ERROR] urls[0] = file:/home/sebastian/.m2/repository/org/arakhne/afc/maven-license-install-plugin/1.1/maven-license-install-plugin-1.1.jar [ERROR] urls[1] = file:/home/sebastian/.m2/repository/org/codehaus/plexus/plexus-utils/1.0.4/plexus-utils-1.0.4.jar [ERROR] Number of foreign imports: 1 [ERROR] import: Entry[import from realm ClassRealm[maven.api, parent: null]] [ERROR] [ERROR] ----------------------------------------------------- [ERROR] -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginContainerException

When a Capacity needs outputs, we have to fill outputs even if the Capacity fails.

GRAVE: Pas assez de paramètres null obligatoires pour org.janusproject.kernel.crio.capacity.Capacity, attend 1 paramètre(s). 2 mars 2011 11:13:03 | Noyau<6cdbb21e-51b2-46d6-9e0a-16015ad2618e> | GRAVE : Sévérité=ERROR; Source=17160330; Code=-2; Message=Pas assez de paramètres null obligatoires pour org.janusproject.kernel.crio.capacity.Capacity, attend 1 paramètre(s).; Exception=org.janusproject.kernel.util.prototype.PrototypeException

Agent is suicidal and has taken the role R in its activation function. The agent has overridden the live function as following:

public Status live() {

   if (condition) {
       return super.live();
   }
   leaveRole(R.class, myGroup);
   return StatusFactory.ok(this);

}

After releasing the role R, the role player is no more appearing in the Group itsef, as expected. But the RoleActivator of the agent still continue to run the live of the released role.

null | Noyau<fc6c1d97-f775-4b80-ba4b-d0a73b2ef2c5> | GRAVE : Collection instance=[::53d1fc1c-604a-47cb-be44-b3f2be8683f7, ::f0da4d0d-a5c9-414a-9486-e94c52dfabf1, ::7948745f-811c-44e6-8c2a-aaa50cb41542, ::b18b2208-fec6-4cd4-931f-e0c468345224, ::607b4227-0371-4f6d-ae43-0725f2cda4ca, ::9cea9b32-32b3-444a-beb3-22d5525454a4, ::015713ed-55a4-4399-909f-06b4e2b21ccd, ::610a38d8-491b-4676-a1b5-bb97baab1077, ::6e229fae-aeb4-4eca-9e24-2917a4dc39bd, ::1b9f58bc-006b-40bb-80b0-5e1b8eae1fe2, ::9477541f-316a-4772-ae53-cb438464e1aa, ::71f29dd8-c24e-4565-8c44-0e2350080cb6, ::0fda15e3-8980-4d83-a3b5-4226c69ee49a, ::1861733e-b083-4f11-ae24-5c2a865fbc68, ::4cb1ef81-874b-4b4b-82aa-d791a3f1acc6, ::d9a9d247-c72c-49b7-8748-43afbe3260c6, ::b6d1b177-424b-4874-9362-eee0b4f78650, ::84b933bb-8949-4f10-ad8b-d0caf1ef1968, ::eb44bb57-da3c-4523-a911-7e7f37cbb345, ::eae0f265-18c9-4131-ab13-eb4d3febcd4b, ::6b97f9c9-f103-4a3b-b5b8-d59e1086ee08, ::603bd5c6-e390-4f78-b53c-530ca6de2b6a, ::4a417207-7198-430e-93ac-33a9e03a7de4, ::3c2257a7-84c6-474a-a094-5c548c5bacb6, ::eb38acbb-397b-40e7-a01a-079756901bb9, ::08f6019b-54b0-4a92-a6ac-4037752e4a2d, ::55e822f7-4442-4204-9c5b-c38ee26c1c31, ::9429f5e1-fd4b-4911-8b04-1f39cc0a4e5e, ::142d92ba-ea78-4c50-a5f2-b2f409b71c9a, ::b0211433-7bc9-4dc0-a28e-a061568ea136, ::bf78bc08-e2c5-4b82-9545-133b3426adc6, ::ba9d4c37-b8c8-4701-a35a-3ad657bc5e4b, ::b53e902a-ae63-49ea-99bb-c22b31649de3, ::89f39e56-659a-4ee8-bd97-e338995f2e86, ::3a2ba097-518f-4c5e-80b1-feb3444df339, ::d8b23758-6368-4399-8b3b-74f1be8e9735, ::b858c576-b731-4cf3-baf7-624f6bd9d967, ::486cfcae-7183-402d-8c62-97e523d048ed, ::35363694-da16-497c-abac-69eb7b2b6339, ::25413e88-8b9c-46a2-81d0-e1340557c540, ::65255d79-7b65-46f6-b913-637d683084f0, ::9978688f-7b0d-4219-947a-8bf0f8599d7d, ::12b0fa50-90df-40d1-a09c-0757895ecac6, ::87fef84b-4a72-4ab7-bf58-5d1e39546ef6, ::490f7522-a859-47b2-aec2-2d2b2aee8208, ::ce046f53-cd64-40e8-a77a-d3e5b9095af4, ::15b27bb7-cc79-45d5-8864-42f5be0f7112, ::87818ae4-aa01-4226-9ba2-bfe663dbd2d8, ::2562cc2d-da9b-4dbe-9860-1689b3770aa2, ::b99722e0-8691-4c96-bb55-6984dff00654, ::31a5cf9c-8042-4a31-a636-372874931aa4, ::9ebd76cc-6e4c-4579-972c-eb794a87146d, ::f43ada24-0abe-49fd-a461-2088853254e7, ::d8b0ed53-df6d-48b7-b2c6-68d5fa0e660c, ::b6bf694e-250f-4ed7-85a3-92d428cae853, ::5a0268cf-06da-4890-9b15-f5868d2e9d2c]Initial allocation resource=1Current allocation resource=0Iterator type=java.util.AbstractList.Itr Iterator instance=java.util.AbstractList$Itr@45cbda0a java.util.ConcurrentModificationException: Collection instance=[::53d1fc1c-604a-47cb-be44-b3f2be8683f7, ::f0da4d0d-a5c9-414a-9486-e94c52dfabf1, ::7948745f-811c-44e6-8c2a-aaa50cb41542, ::b18b2208-fec6-4cd4-931f-e0c468345224, ::607b4227-0371-4f6d-ae43-0725f2cda4ca, ::9cea9b32-32b3-444a-beb3-22d5525454a4, ::015713ed-55a4-4399-909f-06b4e2b21ccd, ::610a38d8-491b-4676-a1b5-bb97baab1077, ::6e229fae-aeb4-4eca-9e24-2917a4dc39bd, ::1b9f58bc-006b-40bb-80b0-5e1b8eae1fe2, ::9477541f-316a-4772-ae53-cb438464e1aa, ::71f29dd8-c24e-4565-8c44-0e2350080cb6, ::0fda15e3-8980-4d83-a3b5-4226c69ee49a, ::1861733e-b083-4f11-ae24-5c2a865fbc68, ::4cb1ef81-874b-4b4b-82aa-d791a3f1acc6, ::d9a9d247-c72c-49b7-8748-43afbe3260c6, ::b6d1b177-424b-4874-9362-eee0b4f78650, ::84b933bb-8949-4f10-ad8b-d0caf1ef1968, ::eb44bb57-da3c-4523-a911-7e7f37cbb345, ::eae0f265-18c9-4131-ab13-eb4d3febcd4b, ::6b97f9c9-f103-4a3b-b5b8-d59e1086ee08, ::603bd5c6-e390-4f78-b53c-530ca6de2b6a, ::4a417207-7198-430e-93ac-33a9e03a7de4, ::3c2257a7-84c6-474a-a094-5c548c5bacb6, ::eb38acbb-397b-40e7-a01a-079756901bb9, ::08f6019b-54b0-4a92-a6ac-4037752e4a2d, ::55e822f7-4442-4204-9c5b-c38ee26c1c31, ::9429f5e1-fd4b-4911-8b04-1f39cc0a4e5e, ::142d92ba-ea78-4c50-a5f2-b2f409b71c9a, ::b0211433-7bc9-4dc0-a28e-a061568ea136, ::bf78bc08-e2c5-4b82-9545-133b3426adc6, ::ba9d4c37-b8c8-4701-a35a-3ad657bc5e4b, ::b53e902a-ae63-49ea-99bb-c22b31649de3, ::89f39e56-659a-4ee8-bd97-e338995f2e86, ::3a2ba097-518f-4c5e-80b1-feb3444df339, ::d8b23758-6368-4399-8b3b-74f1be8e9735, ::b858c576-b731-4cf3-baf7-624f6bd9d967, ::486cfcae-7183-402d-8c62-97e523d048ed, ::35363694-da16-497c-abac-69eb7b2b6339, ::25413e88-8b9c-46a2-81d0-e1340557c540, ::65255d79-7b65-46f6-b913-637d683084f0, ::9978688f-7b0d-4219-947a-8bf0f8599d7d, ::12b0fa50-90df-40d1-a09c-0757895ecac6, ::87fef84b-4a72-4ab7-bf58-5d1e39546ef6, ::490f7522-a859-47b2-aec2-2d2b2aee8208, ::ce046f53-cd64-40e8-a77a-d3e5b9095af4, ::15b27bb7-cc79-45d5-8864-42f5be0f7112, ::87818ae4-aa01-4226-9ba2-bfe663dbd2d8, ::2562cc2d-da9b-4dbe-9860-1689b3770aa2, ::b99722e0-8691-4c96-bb55-6984dff00654, ::31a5cf9c-8042-4a31-a636-372874931aa4, ::9ebd76cc-6e4c-4579-972c-eb794a87146d, ::f43ada24-0abe-49fd-a461-2088853254e7, ::d8b0ed53-df6d-48b7-b2c6-68d5fa0e660c, ::b6bf694e-250f-4ed7-85a3-92d428cae853, ::5a0268cf-06da-4890-9b15-f5868d2e9d2c]Initial allocation resource=1Current allocation resource=0Iterator type=java.util.AbstractList.Itr Iterator instance=java.util.AbstractList$Itr@45cbda0a at org.janusproject.kernel.util.directaccess.SafeIterator.next(SafeIterator.java:143) at org.janusproject.kernel.agent.AgentActivator.activateBehaviour(AgentActivator.java:82) at org.janusproject.jaak.kernel.JaakKernelAgent$TurtleActivator.activateBehaviour(JaakKernelAgent.java:347) at org.janusproject.kernel.schedule.AbstractActivableContainer.live(AbstractActivableContainer.java:233) at org.janusproject.kernel.agent.ActivatorAgent.live(ActivatorAgent.java:323) at org.janusproject.kernel.agent.Agent.proceedPrivateBehaviour(Agent.java:785) at org.janusproject.kernel.agent.KernelAgent.proceedPrivateBehaviour(KernelAgent.java:329) at org.janusproject.kernel.agent.KernelAgent$AgentThread.run(KernelAgent.java:1097) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662)

Exception in thread "main" java.lang.NullPointerException at org.janusproject.kernel.agent.Kernels.create(Kernels.java:457) at org.janusproject.kernel.agent.Kernels.create(Kernels.java:402) at org.janusproject.kernel.agent.Kernels.create(Kernels.java:382) at org.janusproject.kernel.agent.Kernels.get(Kernels.java:142) at org.janusproject.kernel.agent.Kernels.get(Kernels.java:81) at org.janusproject.demos.ecocube.Launcher.main(Launcher.java:51)

Let the following code: interface MyChannel extends Channel {} class MyAgent extends Agent implements ChannelInteratable { public Set<Class<? extends Channel>> getSupportedChannels() {

  return Collections.singleton(MyChannel.class);

} }

This code does not compile with error:

Type mismatch: cannot convert from Set<Class<MyChannel>> to Set<Class<? extends Channel>>

Kernel agents are the only authorize to change the application's name (used by other modules like network) However the kernel agent does not know the name of the application.

If you launch an agent using the kernel : Agent a = ... kernel.launchHeavyAgent(a);

you cant kill the agent. We should provide a methods like: kernel.killAgent(a, this);

Create a hudson jobs to periodically create the apidocs.

Change the output stream of the loggers is still boring and long with the standard Sun's API.

Currently Janus home directory if fixed for all kernel instances => $HOME/.janus

This causes to have problems when more that one kernel is started on the same machine. For instance, more than one network enabled kernel is started : All network instances (JXTA read its configuration from files) are considered the same when they are not!

A fresh check out from the repository (revision484) fails to compile.

BUILD ERROR [INFO] ------------------------------------------------------------------------ [INFO] Failed to create assembly: Artifact: org.janus-project.kernel:network:bundle:0.3-SNAPSHOT (included by module) does not have an artifact with a file. Please ensure the package phase is run before the assembly is generated.

Channels and Probes seems to be intersecting features: retreive informations from agents.

JanusApplication extend JanusModule

Users may tend to register Applications as modules too :

context.registerService(JanusApplication.class.getName(), this, null);

context.registerService(JanusModule.class.getName(), this, null);

This will make the kernel to start twice the same thing.

On the other hand applications need the start(IkernelService) method to start modules.

For the moment, registered JanusModules can be started automatically by the kernel. If the user decides not to use this functionality, there are no ways of starting them later.

The IKernelService should provide methods to this end:

IKernelService::startJanusModule(Class<?extends JanusModule> module, Credentials creds)

IKernelService::stopJanusModule(Class<?extends JanusModule> module, Credentials creds)

both actions should be validated against the IkernelAuthority

I found that it is possible to integrate JIRA with media wiki. It could be interesting to create a Roadmap page, add a bug discussion into a tutorial , etc. Really not important but maybe useful.

Found two plugins, others may be available: http://www.mediawiki.org/wiki/Extension:JIRA

arakhneVmutils requires or uses some sun* classes that when eclipse tries to load them causes problems:

!ENTRY org.eclipse.osgi 2 0 2010-07-16 09:36:26.446 !MESSAGE One or more bundles are not resolved because the following root constraints are not resolved: !SUBENTRY 1 org.eclipse.osgi 2 0 2010-07-16 09:36:26.447 !MESSAGE Bundle initial@reference:file:plugins/arakhneVmutils-5.0-SNAPSHOT.jar/ was not resolved. !SUBENTRY 2 org.arakhne.afc.arakhneVmutils 2 0 2010-07-16 09:36:26.448 !MESSAGE Missing imported package sun.net.www_0.0.0. !SUBENTRY 2 org.arakhne.afc.arakhneVmutils 2 0 2010-07-16 09:36:26.448 !MESSAGE Missing imported package sun.misc_0.0.0. !SUBENTRY 2 org.arakhne.afc.arakhneVmutils 2 0 2010-07-16 09:36:26.449 !MESSAGE Missing imported package sun.reflect_0.0.0.

According to what I found a possible solution would be to add the following to arakhneVmutils Manifest:

Import-Package= !sun, *;resolution:=optional

The kernel agents are never consuming the messages inside their mailboxes.

For Janus users and developers who do not matter about Maven, we must provide a convenient way to use Janus outside Maven.

Right now if we need to set up some configurations we / I use the System.getProperty. While useful this is very prone to attacks in an open environment. For Instance, I would need to find the application name or id to use when creating the Janus Application Peer Group in the networking module. This PeerGroup is used to broadcast newly created janus groups (i.e. group created by agents using the organizations to interact). This way all kernels running the same application, and therefore the same organizations, are found in the network.

A malicious module could change this System property before the networking kernel is started (must be before since once started the kernel will not change its application group) to make our application instance interact with malicious agents.

While this is the most urgent problem others can be found, like changing janus home to change the intended configuration of the kernel (start other applications, etc)

Geshi boxes created when using the source tag are too small. It is too difficult to read and copy & paste the code if needed.

There is a JIRA-SVN plugin that is free and could give us useful information. https://studio.plugins.atlassian.com/wiki/display/SVN/Subversion+JIRA+plugin

When running the Maker-Selective demo, this exception may append:

12 juil. 2010 20:17:32 | Agent<Fournisseur n°1,628091ec-4c8e-4427-9fc7-e5f56424d579> | GRAVE : Sévérité=ERROR; Source=org.janusproject.kernel.util.sizediterator.UnmodifiableMapKeySizedIterator; Code=-2; Message=null; Exception=java.lang.AssertionError org.janusproject.kernel.util.sizediterator.UnmodifiableMapKeySizedIterator.<init>(UnmodifiableMapKeySizedIterator.java:35) org.janusproject.kernel.crio.core.Group$RoleDescriptor.getAddresses(Group.java:912) org.janusproject.kernel.crio.core.Group.getRolePlayers(Group.java:738) org.janusproject.kernel.crio.core.Role.getPlayers(Role.java:1695) org.janusproject.kernel.crio.core.Role.getPlayers(Role.java:1674) org.janusproject.demos.market.selective.contracting.Seller.Run(Seller.java:55) org.janusproject.demos.market.selective.contracting.Seller.live(Seller.java:48) org.janusproject.kernel.crio.core.Role.proceedPrivateBehaviour(Role.java:431) org.janusproject.kernel.crio.core.RoleActivator.activateBehaviour(RoleActivator.java:71) org.janusproject.kernel.schedule.AbstractActivableContainer.live(AbstractActivableContainer.java:233) org.janusproject.kernel.agent.Agent.live(Agent.java:726) org.janusproject.kernel.agent.Agent.proceedPrivateBehaviour(Agent.java:755) org.janusproject.kernel.agent.KernelAgent$AgentThread.run(KernelAgent.java:949) java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) java.util.concurrent.FutureTask.run(FutureTask.java:138) java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

In order to avoid duplicated work i suggest we directly redirect janus-project.org documentation link to the wiki.

Agent's and Role's readability is very low when using standard print, error, etc methods.

Here is an output of a fresh project created with the crio archetype:

No config.properties found. Jul 6, 2010 7:39:07 PM org.janusproject.kernel.agent.KernelAgent <clinit> WARNING: No default configuration found for logging system Jul 6, 2010 7:39:08 PM org.janusproject.kernel.agent.KernelAgent$AgentThread run INFO: Threaded agent launched: Kernel Agent::be480d9b-fc00-4051-8038-a699e145ae0f Jul 6, 2010 7:39:08 PM org.janusproject.kernel.agent.KernelAgent <init> INFO:

• JANUS Platform *
• Copyright: the Janus development Team *
• Holinicly Yours *
• Report any bug to: *
• Bugs.. there are no bugs in my code.. *
• That's certainly Nico that coded it (Seb). *
• If there is effectively no bug, *
• no doubt : Nico has corrected it (Nico). *
• That's a piece of art...since my *
• insectiside code was included, *
• isn't it (Steph). *
• Just kidding : *
• https://devmas-set.utbm.fr/jira/ *
• Thank you for helping us improve JANUS *

Jul 6, 2010 7:39:08 PM org.janusproject.kernel.mmf.osgi.Activator startJanusModule INFO: Starting JanusModule: org.example.janus.echo.Application Jul 6, 2010 7:39:08 PM org.janusproject.kernel.agent.KernelAgent$AgentThread run INFO: Threaded agent launched: ::8bf26fa9-b8bd-41b9-b095-f49f0db5db2b Jul 6, 2010 7:39:08 PM org.janusproject.kernel.agent.KernelAgent$AgentThread run INFO: Threaded agent launched: ::bdac5d2a-0171-48ee-8380-b37c258e96f9 Jul 6, 2010 7:39:08 PM org.janusproject.kernel.crio.core.RolePlayer print INFO: Done activation of ProviderAgent Jul 6, 2010 7:39:08 PM org.janusproject.kernel.crio.core.Role print INFO: Requesting date... Jul 6, 2010 7:39:08 PM org.janusproject.kernel.crio.core.Role print INFO: Requesting date... Jul 6, 2010 7:39:08 PM org.janusproject.kernel.crio.core.Role print INFO: Current date is Tue Jul 06 19:39:08 ART 2010 Jul 6, 2010 7:39:08 PM org.janusproject.kernel.crio.core.Role print INFO: Requesting date... Jul 6, 2010 7:39:08 PM org.janusproject.kernel.crio.core.Role print INFO: Current date is Tue Jul 06 19:39:08 ART 2010 Jul 6, 2010 7:39:08 PM org.janusproject.kernel.crio.core.Role print INFO: Requesting date... Jul 6, 2010 7:39:08 PM org.janusproject.kernel.crio.core.Role print INFO: Current date is Tue Jul 06 19:39:08 ART 2010 Jul 6, 2010 7:39:08 PM org.janusproject.kernel.crio.core.Role print INFO: Requesting date... Jul 6, 2010 7:39:08 PM org.janusproject.kernel.crio.core.Role print INFO: Current date is Tue Jul 06 19:39:08 ART 2010 Jul 6, 2010 7:39:08 PM org.janusproject.kernel.crio.core.Role print INFO: Requesting date... Jul 6, 2010 7:39:08 PM org.janusproject.kernel.crio.core.Role print INFO: Current date is Tue Jul 06 19:39:08 ART 2010 Jul 6, 2010 7:39:08 PM org.janusproject.kernel.crio.core.Role print INFO: Current date is Tue Jul 06 19:39:08 ART 2010 Jul 6, 2010 7:39:08 PM org.janusproject.kernel.crio.core.RolePlayer print INFO: ProviderAgent end. Jul 6, 2010 7:39:08 PM org.janusproject.kernel.crio.core.RolePlayer print INFO: RequestingAgent end. Jul 6, 2010 7:39:08 PM org.janusproject.kernel.agent.KernelAgent removeAgentFromKernel INFO: Agent killed: ::8bf26fa9-b8bd-41b9-b095-f49f0db5db2b Jul 6, 2010 7:39:08 PM org.janusproject.kernel.agent.KernelAgent removeAgentFromKernel INFO: Agent killed: ::bdac5d2a-0171-48ee-8380-b37c258e96f9 Jul 6, 2010 7:39:08 PM org.janusproject.kernel.mmf.osgi.Activator stop INFO: null Jul 6, 2010 7:39:08 PM org.janusproject.kernel.agent.KernelAgent removeAgentFromKernel INFO: Agent killed: Kernel Agent::be480d9b-fc00-4051-8038-a699e145ae0f

To many details are sent to the user and it makes it impossible to know who is sending what!

Besides it does not give what really matters. For instance notice the following sequence :

Jul 6, 2010 7:39:08 PM org.janusproject.kernel.crio.core.Role print INFO: Requesting date... Jul 6, 2010 7:39:08 PM org.janusproject.kernel.crio.core.Role print INFO: Current date is Tue Jul 06 19:39:08 ART 2010

Should print something similar to using the standard configuration :

Jul 6, 2010 7:39:08 PM org.example.janus.echo.organization,RequesterRole print INFO: Requesting date... Jul 6, 2010 7:39:08 PM org.example.janus.echo.organization.DateProviderRole print INFO: Current date is Tue Jul 06 19:39:08 ART 2010

But I would prefer something like :

Jul 6, 2010 7:39:08 PM Agent<name,id> on role RequesterRole print : Requesting date... Jul 6, 2010 7:39:08 PM Agent<name,id> on role DateProviderRole print : Current date is Tue Jul 06 19:39:08 ART 2010

According to ASPECS methodology, CRIO module refers to Problem Domain. We should restrict as many as possible any reference to concepts related to Solution Domain in the CRIO module, eg. Kernel, Agent.

Functions privelegedForwardMessager() and privelegedForwardBroadcastMessage() should be moved from RolePlayer to Agent or KernelAgent (this last has my preference).

In the same way, reference to KernelAgent in CRIOContext should be moved in KernelContext.

Just add the following code any where before a getOrCreateGroup(..) Class<? extends Organization> organization = .... try { cons = organization.getConstructor(CRIOContext.class); assert(cons!=null); cons.newInstance(this.getCRIOContext()); } catch (Exception e) { e.printStackTrace();

}

It might work also if you use the simplified version new MyOrganization(this..getCRIOContext())

java.util.ConcurrentModificationException

       java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1100)
       java.util.TreeMap$KeyIterator.next(TreeMap.java:1154)

org.janusproject.kernel.util.autoremove.AutoremoveIterator.searchNext(AutoremoveIterator.java:43)

org.janusproject.kernel.util.autoremove.AutoremoveIterator.next(AutoremoveIterator.java:69)

org.janusproject.demos.market.selective.providing.PBroker.Run(PBroker.java:108)

org.janusproject.demos.market.selective.providing.PBroker.live(PBroker.java:82)

org.janusproject.kernel.crio.core.Role.proceedPrivateBehaviour(Role.java:417)

org.janusproject.kernel.crio.core.RoleActivator.activateBehaviour(RoleActivator.java:71)

org.janusproject.kernel.schedule.AbstractActivableContainer.live(AbstractActivableContainer.java:233)

       org.janusproject.kernel.agent.Agent.live(Agent.java:724)

org.janusproject.kernel.agent.Agent.proceedPrivateBehaviour(Agent.java:750)

       org.janusproject.kernel.agent.KernelAgent

$AgentThread.run(KernelAgent.java:900)

       java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
       java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
       java.util.concurrent.FutureTask.run(FutureTask.java:138)
       java.util.concurrent.ThreadPoolExecutor

$Worker.runTask(ThreadPoolExecutor.java:886)

       java.util.concurrent.ThreadPoolExecutor

$Worker.run(ThreadPoolExecutor.java:908)

       java.lang.Thread.run(Thread.java:619)

Before we are able to do the public release we have to define the License.

General guide lines:

- Free for personal / academic use

The geshi plugin for mediawiki enables syntax highlighting for the source code.

Janus network Jxta implementation creates an application PeerGroup to find existing groups in the janus platform. The current implementation has a fixed "hard-coded" ID for the application PeerGroup ID.

A group is automatically destroyed when all the played roles are leaved, and the role was marked as non-persistent. But when a group is created and no role requested, the group is still in memory. Such group becomes unaccessible when the group address is lost, ie. it become a zombi group. Zombi groups has memory foot print.

Example of code: class MyAgent extends Agent {

  public Status activate(Object... p) {
     createGroup(MyOrganization.class);
     return StatusFactory.ok(this);
  }

}

Madkit has solve this problem by replacing createGroup()/requestRole() pair by a sinlge invocation to joinGroup() function.

I prefer our coding approach, ie. two functions. But we may provide a solution to this memory allocation problem.

From my previous example, perhaps we may automatically destroy the created group because no role is requested inside. This destruction may occurs just after activate invocation.

It could be interesting to have a standard way of adding comments to svn commits. I propose using an asterisk, a space and then the comment with a stop. So we can use them create changelogs. so we would commit with something like

svn ci -m "* My very clear comment"

The we would obtain a changelog that should look something like :

Changes on version XX

• Change number 1.
• Change number 2.

Should we remove MessageException from sendMessage, etc? It is quite annoying to handle an exception you can't recover from.

Other option is to make it a runtime exception.

In which situations can an agent recover from this exception and how?

In most case I found this exception (and its hierarchy) is used to describe the kernel's internal issues that the programmer cannot do much about. So we can have these exceptions but catch them before they exit the API and wrap them inside a runtime exception.

Let me know what you think about this.

Arakhnê Logger may be discarted in profit to the Sun's logger. Indeed, Sun's logger is embedded in all the JRE, which are compliant with the Sun's specification (Sun's JRE, OpenJDK for example).

RoleTest Fails sometimes - possible race condition? The same test sometimes runs without failure.

Failure

Test set: org.janusproject.kernel.crio.core.RoleTest

Tests run: 36, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 2.151 sec <<< FAILURE! testGetMessage(org.janusproject.kernel.crio.core.RoleTest) Time elapsed: 0.011 sec <<< FAILURE! junit.framework.AssertionFailedError: expected same:<f1b978e2-645d-4ac5-a77e-8bc77de17ada> was not:<4187db5f-eac0-43d3-9836-eef334b4267d>

       at junit.framework.Assert.fail(Assert.java:47)
       at junit.framework.Assert.failNotSame(Assert.java:276)
       at junit.framework.Assert.assertSame(Assert.java:239)
       at junit.framework.Assert.assertSame(Assert.java:246)
       at org.janusproject.kernel.crio.core.RoleTest.testGetMessage(RoleTest.java:207)

svn info

Path: . URL: https://devmas-set.utbm.fr/repository/janus/trunk/janus-kernel/crio Repository Root: https://devmas-set.utbm.fr/repository/janus Repository UUID: f85289ba-9410-49ef-8d3f-18f314445dfd Revision: 322 Node Kind: directory Schedule: normal Last Changed Author: sgalland Last Changed Rev: 321 Last Changed Date: 2010-06-16 19:35:18 -0300 (Wed, 16 Jun 2010)

Each kernel agent has a specific context in which time may evolve at a different rate than in an other kernel agent.

Bundle packaging specified in pom files are incompatible with Continuum. Indeed, even if Continuum is compilating the projects, it does not deploy the jar in the Maven repository.

The consequence is that last changes in source code are not deployed for Jar users.

The RolePlayer::organization(..) method should be removed from the API. Unless I am missing something, it creates an unnecessary overhead and potentially confusing and error-prone API.

The organization Instance should be a singleton in order to control group instances. However the creategroup(...) methods take an organization instance. Users may try to pass a "new OrganizationXX()" instance instead of using organization() method.

Methods such as createGroup(Organization o .. ) should be deprecated and replaced this createGroup(Class<o extends Organization> orgClass, ...). This new methods should internally do what the organization(..) method does.

Here I leave you a small tutorial on how to setup your janus application project to run and debug it inside eclipse.

5 juin 2010 00:15:11 org.arakhne.logging.SunLogger log GRAVE: null java.lang.NullPointerException at fr.utbm.set.jasim.janus.controller.JasimExecutionKernelAgent.consumeControllerEvent(JasimExecutionKernelAgent.java:94) at fr.utbm.set.jasim.janus.controller.JasimExecutionKernelAgent.live(JasimExecutionKernelAgent.java:105) at org.janusproject.kernel.agent.Agent.proceedPrivateBehaviour(Agent.java:642) at org.janusproject.kernel.agent.KernelAgent$AgentThread.run(KernelAgent.java:830) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619)

KernelAgent's constructors (i.e. KernelAgent and NetworkingKernelAgent) cannot be found by the reflection mechanism used by Kernels. You get a nasty NoSuchMethodException.

I have modified the order of the parameters when searching the constructor (done and committed).

To reproduce the bug, add the following test to KernelsTest :

public void testDefaultKernelType(){ Kernels.setPreferredKernelType(KernelAgent.class); Kernel k = Kernels.get(true); assertNotNull(k); assertTrue(k.kill().isSuccess()); Kernels.setPreferredKernelType(null); }

Potential solutions : A- Make all constructors public. I realize that this might lead to users to try to directly instanciate the kernels.

B- Merge Kernels with KernelService so that the only way to obtain a kernel instance is via OSGi services. This means OSGi only implementations will be accepted. Since this may break some existing code I wanted to check it with you guys.

Fresh checkout of repository fails to pass all tests on the CRIO module.

$svn info Path: . URL: https://devmas-set.utbm.fr/repository/janus/trunk/janus-kernel/crio Repository Root: https://devmas-set.utbm.fr/repository/janus Repository UUID: f85289ba-9410-49ef-8d3f-18f314445dfd Revision: 281 Node Kind: directory Schedule: normal Last Changed Author: sgalland Last Changed Rev: 276 Last Changed Date: 2010-06-03 18:02:13 -0300 (Thu, 03 Jun 2010)

T E S T S

Running org.janusproject.kernel.crio.capacity.AbstractCapacityContainerTest Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.043 sec Running org.janusproject.kernel.crio.core.OrganizationRepositoryTest Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.031 sec Running org.janusproject.kernel.crio.core.RoleTest Tests run: 28, Failures: 2, Errors: 0, Skipped: 0, Time elapsed: 2.743 sec <<< FAILURE! Running org.janusproject.kernel.crio.core.InteractionUtilTest Tests run: 17, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.02 sec Running org.janusproject.kernel.crio.core.CapacityExecutorTest Tests run: 12, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 10.041 sec Running org.janusproject.kernel.crio.core.CRIOContextTest Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.003 sec Running org.janusproject.kernel.crio.core.RolePlayerTest Tests run: 28, Failures: 2, Errors: 0, Skipped: 0, Time elapsed: 2.039 sec <<< FAILURE! Running org.janusproject.kernel.crio.core.OrganizationTest Tests run: 10, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.015 sec Running org.janusproject.kernel.crio.capacity.CapacityImplementationComparatorTest Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.003 sec Running org.janusproject.kernel.crio.coreTest.OrganizationRepositoryTest Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.005 sec Running org.janusproject.kernel.crio.capacity.TreeCapacityContainerTest Tests run: 10, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.005 sec Running org.janusproject.kernel.crio.capacity.RandomCapacityImplementationSelectionPolicyTest Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.003 sec Running org.janusproject.kernel.crio.core.GroupAddressTest Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.002 sec Running org.janusproject.kernel.crio.core.GroupTest Tests run: 23, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.041 sec Running org.janusproject.kernel.crio.core.GroupRepositoryTest Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.004 sec Running org.janusproject.kernel.crio.core.GroupCapacityContextTest Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.007 sec Running org.janusproject.kernel.crio.capacity.FirstCapacityImplementationSelectionPolicyTest Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.002 sec Running org.janusproject.kernel.crio.capacity.CapacityContextTest Tests run: 11, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.013 sec Running org.janusproject.kernel.crio.capacity.HashCapacityContainerTest Tests run: 10, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.005 sec Running org.janusproject.kernel.crio.core.RoleCapacityImplementationTest Tests run: 11, Failures: 2, Errors: 0, Skipped: 0, Time elapsed: 0.032 sec <<< FAILURE! Running org.janusproject.kernel.crio.core.RoleActivatorTest Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.002 sec

Results :

Failed tests:

 testBroadcastMessage(org.janusproject.kernel.crio.core.RoleTest)
 testForwardBroadcastMessage(org.janusproject.kernel.crio.core.RoleTest)
 testBroadcastMessage(org.janusproject.kernel.crio.core.RolePlayerTest)
 testForwardBroadcastMessage(org.janusproject.kernel.crio.core.RolePlayerTest)
 testBroadcastMessage(org.janusproject.kernel.crio.core.RoleCapacityImplementationTest)
 testForwardBroadcastMessage(org.janusproject.kernel.crio.core.RoleCapacityImplementationTest)

Tests run: 186, Failures: 6, Errors: 0, Skipped: 0

[INFO] ------------------------------------------------------------------------ [ERROR] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] There are test failures.

Let A an agent playing roles R1 and R2.

GRAVE: null java.util.ConcurrentModificationException

       at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
       at java.util.AbstractList$Itr.next(AbstractList.java:343)
       at 

org.janusproject.kernel.util.directaccess.SafeIterator.next(SafeIterator.java:101)

       at 

org.janusproject.kernel.agent.AgentActivator.activateBehaviour(AgentActivator.java:76)

       at 

org.janusproject.kernel.schedule.AbstractActivableContainer.live(AbstractActivableContainer.java:197)

       at 

org.janusproject.kernel.agent.ActivatorAgent.live(ActivatorAgent.java:190)

       at 

org.janusproject.kernel.agent.Agent.proceedPrivateBehaviour(Agent.java:632)

       at 

org.janusproject.kernel.agent.KernelAgent$AgentThread.run(KernelAgent.java:757)

       at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
       at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
       at java.util.concurrent.FutureTask.run(FutureTask.java:138)
       at 

java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

       at 

java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

       at java.lang.Thread.run(Thread.java:637)

When a condition does not met, the kernel is not able to log a description of the failure.

The attached source code causes a access error. The problem is due to the fact that organization instanciator could not access to the private definition of MyOrga class.

Apply the same annotation feature as capacity call to role initialization.

Message classes may be moved from crio moule to a dedicated Maven module.

[::d85b14bb-a9a7-41c1-915e-df9b16b3f655@42e43127-5a9f-4c88-b56a-6155c88f4b2a pc-set-71.utbm.fr] - Erreur: Sévérité=ERROR; Source=org.janusproject.kernel.status.MultipleStatus; Code=-2; Message=null; Exception=java.lang.NullPointerException org.janusproject.kernel.status.MultipleStatus.getInsertIndex(MultipleStatus.java:105) org.janusproject.kernel.status.MultipleStatus.addStatus(MultipleStatus.java:96) org.janusproject.kernel.status.MultipleStatus.addStatus(MultipleStatus.java:86) org.janusproject.kernel.status.MultipleStatus.<init>(MultipleStatus.java:56) org.janusproject.kernel.crio.core.Role.proceedPrivateBehaviour(Role.java:211) org.janusproject.kernel.crio.core.RoleActivator.activateBehaviour(RoleActivator.java:69) org.janusproject.kernel.schedule.AbstractActivableContainer.live(AbstractActivableContainer.java:197) org.janusproject.kernel.agent.Agent.live(Agent.java:587) org.janusproject.kernel.agent.Agent.proceedPrivateBehaviour(Agent.java:613) org.janusproject.kernel.agent.AgentActivator.activateBehaviour(AgentActivator.java:81) org.janusproject.kernel.schedule.AbstractActivableContainer.live(AbstractActivableContainer.java:197) org.janusproject.kernel.agent.ActivatorAgent.live(ActivatorAgent.java:187) fr.utbm.set.jasim.janus.controller.JasimExecutionKernelAgent.live(JasimExecutionKernelAgent.java:108) org.janusproject.kernel.agent.Agent.proceedPrivateBehaviour(Agent.java:613) org.janusproject.kernel.agent.KernelAgent$AgentThread.run(KernelAgent.java:734) java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) java.util.concurrent.FutureTask.run(FutureTask.java:138) java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) java.lang.Thread.run(Thread.java:619) Sévérité=ERROR; Source=org.janusproject.kernel.status.MultipleStatus; Code=-2; Message=null; Exception=java.lang.NullPointerException org.janusproject.kernel.status.MultipleStatus.getInsertIndex(MultipleStatus.java:105) org.janusproject.kernel.status.MultipleStatus.addStatus(MultipleStatus.java:96) org.janusproject.kernel.status.MultipleStatus.addStatus(MultipleStatus.java:86) org.janusproject.kernel.status.MultipleStatus.<init>(MultipleStatus.java:56) org.janusproject.kernel.crio.core.Role.proceedPrivateBehaviour(Role.java:211) org.janusproject.kernel.crio.core.RoleActivator.activateBehaviour(RoleActivator.java:69) org.janusproject.kernel.schedule.AbstractActivableContainer.live(AbstractActivableContainer.java:197) org.janusproject.kernel.agent.Agent.live(Agent.java:587) org.janusproject.kernel.agent.Agent.proceedPrivateBehaviour(Agent.java:613) org.janusproject.kernel.agent.AgentActivator.activateBehaviour(AgentActivator.java:81) org.janusproject.kernel.schedule.AbstractActivableContainer.live(AbstractActivableContainer.java:197) org.janusproject.kernel.agent.ActivatorAgent.live(ActivatorAgent.java:187) fr.utbm.set.jasim.janus.controller.JasimExecutionKernelAgent.live(JasimExecutionKernelAgent.java:108) org.janusproject.kernel.agent.Agent.proceedPrivateBehaviour(Agent.java:613) org.janusproject.kernel.agent.KernelAgent$AgentThread.run(KernelAgent.java:734) java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) java.util.concurrent.FutureTask.run(FutureTask.java:138) java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) java.lang.Thread.run(Thread.java:619) Sévérité=ERROR; Source=org.janusproject.kernel.status.MultipleStatus; Code=-2; Message=null; Exception=java.lang.NullPointerException org.janusproject.kernel.status.MultipleStatus.getInsertIndex(MultipleStatus.java:105) org.janusproject.kernel.status.MultipleStatus.addStatus(MultipleStatus.java:96) org.janusproject.kernel.status.MultipleStatus.addStatus(MultipleStatus.java:86) org.janusproject.kernel.status.MultipleStatus.<init>(MultipleStatus.java:56) org.janusproject.kernel.crio.core.Role.proceedPrivateBehaviour(Role.java:211) org.janusproject.kernel.crio.core.RoleActivator.activateBehaviour(RoleActivator.java:69) org.janusproject.kernel.schedule.AbstractActivableContainer.live(AbstractActivableContainer.java:197) org.janusproject.kernel.agent.Agent.live(Agent.java:587) org.janusproject.kernel.agent.Agent.proceedPrivateBehaviour(Agent.java:613) org.janusproject.kernel.agent.AgentActivator.activateBehaviour(AgentActivator.java:81) org.janusproject.kernel.schedule.AbstractActivableContainer.live(AbstractActivableContainer.java:197) org.janusproject.kernel.agent.ActivatorAgent.live(ActivatorAgent.java:187) fr.utbm.set.jasim.janus.controller.JasimExecutionKernelAgent.live(JasimExecutionKernelAgent.java:108) org.janusproject.kernel.agent.Agent.proceedPrivateBehaviour(Agent.java:613) org.janusproject.kernel.agent.KernelAgent$AgentThread.run(KernelAgent.java:734) java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) java.util.concurrent.FutureTask.run(FutureTask.java:138) java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) java.lang.Thread.run(Thread.java:619) Sévérité=ERROR; Source=23494460; Code=-2; Message=null; Exception=java.lang.NullPointerException Sévérité=ERROR; Source=org.janusproject.kernel.status.MultipleStatus; Code=-2; Message=null; Exception=java.lang.NullPointerException org.janusproject.kernel.status.MultipleStatus.getInsertIndex(MultipleStatus.java:105) org.janusproject.kernel.status.MultipleStatus.addStatus(MultipleStatus.java:96) org.janusproject.kernel.status.MultipleStatus.addStatus(MultipleStatus.java:86) org.janusproject.kernel.status.MultipleStatus.<init>(MultipleStatus.java:56) org.janusproject.kernel.crio.core.Role.proceedPrivateBehaviour(Role.java:211) org.janusproject.kernel.crio.core.RoleActivator.activateBehaviour(RoleActivator.java:69) org.janusproject.kernel.schedule.AbstractActivableContainer.live(AbstractActivableContainer.java:197) org.janusproject.kernel.agent.Agent.live(Agent.java:587) org.janusproject.kernel.agent.Agent.proceedPrivateBehaviour(Agent.java:613) org.janusproject.kernel.agent.AgentActivator.activateBehaviour(AgentActivator.java:81) org.janusproject.kernel.schedule.AbstractActivableContainer.live(AbstractActivableContainer.java:197) org.janusproject.kernel.agent.ActivatorAgent.live(ActivatorAgent.java:187) fr.utbm.set.jasim.janus.controller.JasimExecutionKernelAgent.live(JasimExecutionKernelAgent.java:108) org.janusproject.kernel.agent.Agent.proceedPrivateBehaviour(Agent.java:613) org.janusproject.kernel.agent.KernelAgent$AgentThread.run(KernelAgent.java:734) java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) java.util.concurrent.FutureTask.run(FutureTask.java:138) java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

Kernel does not support network communication with other kernel instances.

I propose to get inspiration from TinyMAS: class Kernel; class NetworkingKernel extends Kernel;

NetworkingKernel will override empty functions from Kernel to provide a network support.

Janus Kernel was redesigned for 0.3 version. But component and overall performances must be computed.

Some tests seem to randomly fail when using OpenJDK 6 in the mentioned environment.

I am build a clean checkout: $ svn info Path: . URL: https://devmas-set.utbm.fr/repository/janus/trunk Repository Root: https://devmas-set.utbm.fr/repository/janus Repository UUID: f85289ba-9410-49ef-8d3f-18f314445dfd Revision: 206 Node Kind: directory Schedule: normal Last Changed Author: sgalland Last Changed Rev: 206 Last Changed Date: 2010-04-01 12:24:23 -0300 (Thu, 01 Apr 2010)

When running maven build using OpenJDK, sometimes tests fail and sometimes it builds correctly. $ java -version java version "1.6.0_0" OpenJDK Runtime Environment (IcedTea6 1.6.1) (6b16-1.6.1-3ubuntu3) OpenJDK 64-Bit Server VM (build 14.0-b16, mixed mode)

$ mvn -version Apache Maven 2.2.1 (rdebian-1) Java version: 1.6.0_16 Java home: /usr/lib/jvm/java-6-sun-1.6.0.16/jre Default locale: en_US, platform encoding: UTF-8 OS name: "linux" version: "2.6.31-20-generic" arch: "amd64" Family: "unix"

$ echo $MAVEN_OPTS -Xms512m -Xmx1024m -XX:PermSize=512m -XX:MaxPermSize=1024m

Every time I get and AssertionError exception, but with different test (KernelAgentTest, OverallMASTest)

Example: [INFO] ------------------------------------------------------------------------ [INFO] Building Janus Kernel Implementation [INFO] task-segment: [clean, install] [INFO] ------------------------------------------------------------------------ [INFO] [clean:clean {execution: default-clean}] [INFO] [resources:resources {execution: default-resources}] [WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent! [INFO] Copying 2 resources [INFO] [compiler:compile {execution: default-compile}] [INFO] Compiling 39 source files to /home/sebastian/workspaces/janus-devsma/janus/janus-kernel/kernel/target/classes [INFO] [resources:testResources {execution: default-testResources}] [WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent! [INFO] skip non existing resourceDirectory /home/sebastian/workspaces/janus-devsma/janus/janus-kernel/kernel/src/test/resources [INFO] [compiler:testCompile {execution: default-testCompile}] [INFO] Compiling 11 source files to /home/sebastian/workspaces/janus-devsma/janus/janus-kernel/kernel/target/test-classes [INFO] [surefire:test {execution: default-test}] [INFO] Surefire report directory: /home/sebastian/workspaces/janus-devsma/janus/janus-kernel/kernel/target/surefire-reports

T E S T S                                             

Running org.janusproject.kernel.agent.AgentActivatorTest Tests run: 10, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.639 sec Running org.janusproject.kernel.agent.AbstractActivatorAgentTest Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.189 sec Running org.janusproject.kernel.agent.KernelAgentTest Tests run: 7, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 1.473 sec <<< FAILURE! Running org.janusproject.kernel.agent.ProbeManagerTest Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.209 sec Running org.janusproject.kernel.agent.KernelContextTest Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.475 sec Running org.janusproject.kernel.agent.OverallMASTest Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.849 sec Running org.janusproject.kernel.agent.AgentRepositoryTest Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.12 sec Running org.janusproject.kernel.agent.KernelsTest Tests run: 7, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.018 sec Running org.janusproject.kernel.agent.KernelEventTest Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.409 sec Running org.janusproject.kernel.agent.AgentLifeStateTest Tests run: 7, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.732 sec Running org.janusproject.kernel.agent.AgentTest Tests run: 20, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 3.324 sec

Results :

Tests in error:

 testKillAgentAddress_self(org.janusproject.kernel.agent.KernelAgentTest)

Tests run: 68, Failures: 0, Errors: 1, Skipped: 0

[INFO] ------------------------------------------------------------------------ [ERROR] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] There are test failures.

$cat janus-kernel/kernel/target/surefire-reports/org.janusproject.kernel.agent.KernelAgentTest.txt

Test set: org.janusproject.kernel.agent.KernelAgentTest

Tests run: 7, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 1.473 sec <<< FAILURE! testKillAgentAddress_self(org.janusproject.kernel.agent.KernelAgentTest) Time elapsed: 0.106 sec <<< ERROR! java.lang.AssertionError

       at org.janusproject.kernel.agent.KernelAgent.isSelfKillableNow(KernelAgent.java:204)
       at org.janusproject.kernel.agent.Agent.proceedPrivateBehaviour(Agent.java:607)
       at org.janusproject.kernel.agent.KernelAgentTest.assertDead(KernelAgentTest.java:60)
       at org.janusproject.kernel.agent.KernelAgentTest.testKillAgentAddress_self(KernelAgentTest.java:120)

When using sun hot spot all test seem to pass every time without any failures or problems. I built it several times without problems, but this is no warranty.

$ java -version java version "1.6.0_16" Java(TM) SE Runtime Environment (build 1.6.0_16-b01) Java HotSpot(TM) 64-Bit Server VM (build 14.2-b01, mixed mode)

Change JIRA's configuration to allow unassigned issues so that certain tasks, bugs, improvements, etc can be assign later (after discussion, appropriate time, etc)

As discussed with the core developer, probably the best option is to rename holon to agent in order to avoid misinterpretations and problems of the community. This is a thread to discuss options, effects and the best way to do this. A consensus between the core developers MUST be reached before closing this issue.

I believe that it would be easier to replace the current HolonAddress implementation to have simple a UUID along with other attributes (e.g. human readable name, etc) This would be useful when 1. dealing with composed holons that may "exist" in several hosts. 2. implementing agent migration so that other agents, kernels, network modules, etc do not have an extra overhead to update the hosts.

I do not see any particular counter-effects, do you?