Hi.
I tried to test current shoal version in IBM JDK 1.6.
But GMS failed to join the group in IBM JDK 1.6.
Here is error log.
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2009. 3. 21 오후 6:21:17 com.sun.enterprise.jxtamgmt.JxtaUtil configureJxtaLogging
CONFIG: gms configureJxtaLogging: set jxta logging to default of SEVERE
2009. 3. 21 오후 6:21:18 com.sun.enterprise.jxtamgmt.NetworkManager initWPGF
CONFIG: initWPGF storeHome=/home/bluewolf/project/jeus7trunk/target/jeus/domains/dvt/data/gms/dvt
2009. 3. 21 오후 6:21:18 com.sun.enterprise.jxtamgmt.NetworkManager <init>
SEVERE: Could not locate World PeerGroup Module Implementation.
Throwable occurred: net.jxta.exception.PeerGroupException: Could not locate World PeerGroup Module Implementation.
at net.jxta.peergroup.WorldPeerGroupFactory.getDefaultWorldPeerGroupClass(WorldPeerGroupFactory.java:244)
at net.jxta.peergroup.WorldPeerGroupFactory.<init>(WorldPeerGroupFactory.java:178)
at com.sun.enterprise.jxtamgmt.NetworkManager.initWPGF(NetworkManager.java:623)
at com.sun.enterprise.jxtamgmt.NetworkManager.<init>(NetworkManager.java:213)
at com.sun.enterprise.jxtamgmt.ClusterManager.<init>(ClusterManager.java:133)
at com.sun.enterprise.ee.cms.impl.jxta.GroupCommunicationProviderImpl.initializeGroupCommunicationProvider(GroupCommunicationProviderImpl.java:138)
at com.sun.enterprise.ee.cms.impl.jxta.GMSContext.join(GMSContext.java:123)
at com.sun.enterprise.ee.cms.impl.common.GroupManagementServiceImpl.join(GroupManagementServiceImpl.java:347)
...
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I could know that "Could not locate World PeerGroup Module Implementation" message was concerned with JDK version and jxta platform when I reviewed [Shoal-Users] mailing list.
So I tried to test jxta.jar simply.
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D:\>java -version
java version "1.6.0"
Java(TM) SE Runtime Environment (build pwi3260sr1-20080416_01(SR1))
IBM J9 VM (build 2.4, J2RE 1.6.0 IBM J9 2.4 Windows XP x86-32 jvmwi3260-20080415_18762 (JIT enabled,
AOT enabled)
J9VM - 20080415_018762_lHdSMr
JIT - r9_20080415_1520
GC - 20080415_AA)
JCL - 20080412_01
D:\>java -jar jxta.jar
Starting the JXTA platform in mode : EDGE
2009. 3. 23 오전 11:22:28 net.jxta.platform.NetworkManager configure
INFO: Created new configuration. mode = EDGE
2009. 3. 23 오전 11:22:28 net.jxta.platform.NetworkManager startNetwork
INFO: Starting JXTA Network! MODE = EDGE, HOME = file:/D:/.cache/BootEdge/
2009. 3. 23 오전 11:22:28 net.jxta.impl.peergroup.StdPeerGroup isCompatible
WARNING: Failure handling compatibility statement
Throwable occurred: java.lang.NumberFormatException: Empty version string
at java.lang.Package.isCompatibleWith(Package.java:223)
at net.jxta.impl.peergroup.StdPeerGroup.isCompatible(StdPeerGroup.java:414)
at net.jxta.impl.peergroup.GenericPeerGroup$1.compatible(GenericPeerGroup.java:131)
at net.jxta.impl.loader.RefJxtaLoader.findClass(RefJxtaLoader.java:254)
at net.jxta.impl.loader.RefJxtaLoader.findModuleImplAdvertisement(RefJxtaLoader.java:350)
at net.jxta.peergroup.WorldPeerGroupFactory.getDefaultWorldPeerGroupClass(WorldPeerGroupFact
ory.java:241)
at net.jxta.peergroup.WorldPeerGroupFactory.<init>(WorldPeerGroupFactory.java:178)
at net.jxta.peergroup.NetPeerGroupFactory.<init>(NetPeerGroupFactory.java:204)
at net.jxta.platform.NetworkManager.startNetwork(NetworkManager.java:410)
at net.jxta.impl.peergroup.Boot.main(Boot.java:139)
Uncaught Throwable caught by 'main':
net.jxta.exception.PeerGroupException: Could not locate World PeerGroup Module Implementation.
at net.jxta.peergroup.WorldPeerGroupFactory.getDefaultWorldPeerGroupClass(WorldPeerGroupFact
ory.java:244)
at net.jxta.peergroup.WorldPeerGroupFactory.<init>(WorldPeerGroupFactory.java:178)
at net.jxta.peergroup.NetPeerGroupFactory.<init>(NetPeerGroupFactory.java:204)
at net.jxta.platform.NetworkManager.startNetwork(NetworkManager.java:410)
at net.jxta.impl.peergroup.Boot.main(Boot.java:139)
D:\>
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I could know that this error was related to Package.isCompatibleWith() method.
Here is my test code.
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Package javaLangPackage = Package.getPackage( "java.lang" );
System.out.println( javaLangPackage.getSpecificationVersion() );
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In Sun JDK6
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1.6
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In IBM JDK6
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null
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So Package#isCompatibleWith() can return "java.lang.NumberFormatException: Empty version string" exception in IBM JDK6 because specVersion can be null.
At this case, do you have any solution or work-around?
PS)
- current cvs jxta.jar works well in Sun JDK1.5, Sun JDK1.6 and IBM JDK1.5.
- I tested this case in Windows and Linux. Both Windows and Linux returned same error when I used IBM JDK1.6.
Thanks.
--
Bongjae Chang