在 OSGI 环境中 com.hazelcast.nio.serialization.HazelcastSerializationException
In OSGI Environment com.hazelcast.nio.serialization.HazelcastSerializationException
我是运行一个OSGI插件项目，使用felix maven plugin with (N bundle)，我已经集成了hazelcast。创建 hazelcast 实例的 class "ConfigurationService" 标记为单例，我使用默认配置创建 hazelcast 实例。
下面是代码片段。
private static ROIConfigurationServer configService;
private HazelcastInstance hazelcastInstance;
public static ROIConfigurationServer getConfigurationService()throws ConfigServerInitializationException{
if(configService==null){
synchronized(ROIConfigurationServer.class){
try{
logger.debug("initialized ROIConfigurationServer");
HazelcastInstance hazelcastInstance=Hazelcast.newHazelcastInstance();
List<String> imapkeys=new ArrayList<>();
IMap<String,String> configGroupKeys=hazelcastInstance.getMap(ConfigurationConstant.CONFIG_GROUP_KEYS);
configService=new ROIConfigurationServer(hazelcastInstance,configGroupKeys);
}catch(Exception exp){
logger.error("ROIConfigurationServer initializatiob error", exp);
throw new ConfigServerInitializationException("Failed to initialize the ConfigServer",exp);
}
}
}
return configService;
}//end of singleton method
单例 class "ConfigurationService" 有方法 addConfiguration() 将 ConfigurationUnit (pojo class) 对象添加到 hazelcast 映射对象中，以及 getConfiguration() 从 hazelcast 获取 ConfigurationUnit 对象映射并部署为 bundle "config-service" bundle.
另一个名为 "feature-extender-v3" 的包使用扩展器模式调用 addConfiguration() 并成功将配置数据添加到 hazelcast 中，但在调用 getConfiguration() 时出现以下错误
完整堆栈跟踪：
ERROR: Bundle feature-extender-v3 [157] EventDispatcher: Error during dispatch. (com.hazelcast.nio.serialization.HazelcastSerializationException: java.lang.ClassNotFoundException: com.getusroi.config.server.ConfigurationUnit)
com.hazelcast.nio.serialization.HazelcastSerializationException: java.lang.ClassNotFoundException: com.getusroi.config.server.ConfigurationUnit
at com.hazelcast.nio.serialization.DefaultSerializers$ObjectSerializer.read(DefaultSerializers.java:201)
at com.hazelcast.nio.serialization.StreamSerializerAdapter.read(StreamSerializerAdapter.java:41)
at com.hazelcast.nio.serialization.SerializationServiceImpl.toObject(SerializationServiceImpl.java:276)
at com.hazelcast.spi.impl.NodeEngineImpl.toObject(NodeEngineImpl.java:200)
at com.hazelcast.map.impl.MapServiceContextImpl.toObject(MapServiceContextImpl.java:281)
at com.hazelcast.map.impl.proxy.MapProxySupport.toObject(MapProxySupport.java:1114)
at com.hazelcast.map.impl.proxy.MapProxyImpl.get(MapProxyImpl.java:82)
at com.getusroi.config.server.ROIConfigurationServer.getConfiguration(ROIConfigurationServer.java:133)
at com.getusroi.feature.config.impl.FeatureConfigurationService.getFeatureConfiguration(FeatureConfigurationService.java:41)
at com.getusroi.feature.config.impl.FeatureConfigurationService.addFeatureConfiguration(FeatureConfigurationService.java:28)
at com.getusroi.feature.resources.helper.FMIResources.getFeaturesImplementationResource(FMIResources.java:111)
at com.getusroi.feature.resources.helper.FMIResources.getEventResources(FMIResources.java:37)
at com.getusroi.feature.extender.FeatureMetaInfoExtender.addedBundle(FeatureMetaInfoExtender.java:89)
at com.getusroi.feature.bundle.tracker.BundleTracker.bundleChanged(BundleTracker.java:65)
at org.apache.felix.framework.util.EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:870)
at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:791)
at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:515)
at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4650)
at org.apache.felix.framework.Felix.run(Felix.java:2123)
at org.apache.felix.framework.Felix.runInContext(Felix.java:2147)
at org.apache.felix.framework.Felix.startBundle(Felix.java:2121)
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:955)
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:942)
at org.apache.karaf.shell.osgi.InstallBundle.doExecute(InstallBundle.java:51)
at org.apache.karaf.shell.console.OsgiCommandSupport.execute(OsgiCommandSupport.java:39)
at org.apache.felix.gogo.commands.basic.AbstractCommand.execute(AbstractCommand.java:35)
at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:78)
at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:477)
at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:403)
at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108)
at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:183)
at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:120)
at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:89)
at org.apache.karaf.shell.console.jline.Console.run(Console.java:189)
at java.lang.Thread.run(Thread.java:745)
at org.apache.karaf.shell.ssh.ShellFactoryImpl$ShellImpl.doRun(ShellFactoryImpl.java:158)
at org.apache.karaf.shell.ssh.ShellFactoryImpl$ShellImpl.run(ShellFactoryImpl.java:149)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.karaf.jaas.modules.JaasHelper.doAs(JaasHelper.java:47)
at org.apache.karaf.shell.ssh.ShellFactoryImpl$ShellImpl.run(ShellFactoryImpl.java:147)
Caused by: java.lang.ClassNotFoundException: com.getusroi.config.server.ConfigurationUnit
at java.net.URLClassLoader.run(URLClassLoader.java:366)
at java.net.URLClassLoader.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at com.hazelcast.nio.ClassLoaderUtil.tryLoadClass(ClassLoaderUtil.java:125)
at com.hazelcast.nio.ClassLoaderUtil.loadClass(ClassLoaderUtil.java:114)
at com.hazelcast.nio.IOUtil.resolveClass(IOUtil.java:113)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1612)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1517)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1771)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
at com.hazelcast.nio.serialization.DefaultSerializers$ObjectSerializer.read(DefaultSerializers.java:196)
... 39 more
我查看了另一个具有类似问题“com.hazelcast.nio.serialization.HazelcastSerializationException”的堆栈跟踪，但不明白。我应该如何使用默认配置而不是使用 hazelcast 配置来解决这个问题？
你能通过给指定的 Config 和配置的 classloader 创建 Hazelcast 实例吗（classloader 可以通过 setClassLoader() 方法设置）它知道 class com.getusroi.config.server.ConfigurationUnit?
此致。
我是运行一个OSGI插件项目，使用felix maven plugin with (N bundle)，我已经集成了hazelcast。创建 hazelcast 实例的 class "ConfigurationService" 标记为单例，我使用默认配置创建 hazelcast 实例。
下面是代码片段。
private static ROIConfigurationServer configService;
private HazelcastInstance hazelcastInstance;
public static ROIConfigurationServer getConfigurationService()throws ConfigServerInitializationException{
if(configService==null){
synchronized(ROIConfigurationServer.class){
try{
logger.debug("initialized ROIConfigurationServer");
HazelcastInstance hazelcastInstance=Hazelcast.newHazelcastInstance();
List<String> imapkeys=new ArrayList<>();
IMap<String,String> configGroupKeys=hazelcastInstance.getMap(ConfigurationConstant.CONFIG_GROUP_KEYS);
configService=new ROIConfigurationServer(hazelcastInstance,configGroupKeys);
}catch(Exception exp){
logger.error("ROIConfigurationServer initializatiob error", exp);
throw new ConfigServerInitializationException("Failed to initialize the ConfigServer",exp);
}
}
}
return configService;
}//end of singleton method
单例 class "ConfigurationService" 有方法 addConfiguration() 将 ConfigurationUnit (pojo class) 对象添加到 hazelcast 映射对象中，以及 getConfiguration() 从 hazelcast 获取 ConfigurationUnit 对象映射并部署为 bundle "config-service" bundle.
另一个名为 "feature-extender-v3" 的包使用扩展器模式调用 addConfiguration() 并成功将配置数据添加到 hazelcast 中，但在调用 getConfiguration() 时出现以下错误
完整堆栈跟踪：
ERROR: Bundle feature-extender-v3 [157] EventDispatcher: Error during dispatch. (com.hazelcast.nio.serialization.HazelcastSerializationException: java.lang.ClassNotFoundException: com.getusroi.config.server.ConfigurationUnit)
com.hazelcast.nio.serialization.HazelcastSerializationException: java.lang.ClassNotFoundException: com.getusroi.config.server.ConfigurationUnit
at com.hazelcast.nio.serialization.DefaultSerializers$ObjectSerializer.read(DefaultSerializers.java:201)
at com.hazelcast.nio.serialization.StreamSerializerAdapter.read(StreamSerializerAdapter.java:41)
at com.hazelcast.nio.serialization.SerializationServiceImpl.toObject(SerializationServiceImpl.java:276)
at com.hazelcast.spi.impl.NodeEngineImpl.toObject(NodeEngineImpl.java:200)
at com.hazelcast.map.impl.MapServiceContextImpl.toObject(MapServiceContextImpl.java:281)
at com.hazelcast.map.impl.proxy.MapProxySupport.toObject(MapProxySupport.java:1114)
at com.hazelcast.map.impl.proxy.MapProxyImpl.get(MapProxyImpl.java:82)
at com.getusroi.config.server.ROIConfigurationServer.getConfiguration(ROIConfigurationServer.java:133)
at com.getusroi.feature.config.impl.FeatureConfigurationService.getFeatureConfiguration(FeatureConfigurationService.java:41)
at com.getusroi.feature.config.impl.FeatureConfigurationService.addFeatureConfiguration(FeatureConfigurationService.java:28)
at com.getusroi.feature.resources.helper.FMIResources.getFeaturesImplementationResource(FMIResources.java:111)
at com.getusroi.feature.resources.helper.FMIResources.getEventResources(FMIResources.java:37)
at com.getusroi.feature.extender.FeatureMetaInfoExtender.addedBundle(FeatureMetaInfoExtender.java:89)
at com.getusroi.feature.bundle.tracker.BundleTracker.bundleChanged(BundleTracker.java:65)
at org.apache.felix.framework.util.EventDispatcher.invokeBundleListenerCallback(EventDispatcher.java:870)
at org.apache.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:791)
at org.apache.felix.framework.util.EventDispatcher.fireBundleEvent(EventDispatcher.java:515)
at org.apache.felix.framework.Felix.fireBundleEvent(Felix.java:4650)
at org.apache.felix.framework.Felix.run(Felix.java:2123)
at org.apache.felix.framework.Felix.runInContext(Felix.java:2147)
at org.apache.felix.framework.Felix.startBundle(Felix.java:2121)
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:955)
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:942)
at org.apache.karaf.shell.osgi.InstallBundle.doExecute(InstallBundle.java:51)
at org.apache.karaf.shell.console.OsgiCommandSupport.execute(OsgiCommandSupport.java:39)
at org.apache.felix.gogo.commands.basic.AbstractCommand.execute(AbstractCommand.java:35)
at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:78)
at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:477)
at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:403)
at org.apache.felix.gogo.runtime.Pipe.run(Pipe.java:108)
at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:183)
at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:120)
at org.apache.felix.gogo.runtime.CommandSessionImpl.execute(CommandSessionImpl.java:89)
at org.apache.karaf.shell.console.jline.Console.run(Console.java:189)
at java.lang.Thread.run(Thread.java:745)
at org.apache.karaf.shell.ssh.ShellFactoryImpl$ShellImpl.doRun(ShellFactoryImpl.java:158)
at org.apache.karaf.shell.ssh.ShellFactoryImpl$ShellImpl.run(ShellFactoryImpl.java:149)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.karaf.jaas.modules.JaasHelper.doAs(JaasHelper.java:47)
at org.apache.karaf.shell.ssh.ShellFactoryImpl$ShellImpl.run(ShellFactoryImpl.java:147)
Caused by: java.lang.ClassNotFoundException: com.getusroi.config.server.ConfigurationUnit
at java.net.URLClassLoader.run(URLClassLoader.java:366)
at java.net.URLClassLoader.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at com.hazelcast.nio.ClassLoaderUtil.tryLoadClass(ClassLoaderUtil.java:125)
at com.hazelcast.nio.ClassLoaderUtil.loadClass(ClassLoaderUtil.java:114)
at com.hazelcast.nio.IOUtil.resolveClass(IOUtil.java:113)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1612)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1517)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1771)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
at com.hazelcast.nio.serialization.DefaultSerializers$ObjectSerializer.read(DefaultSerializers.java:196)
... 39 more
我查看了另一个具有类似问题“com.hazelcast.nio.serialization.HazelcastSerializationException”的堆栈跟踪，但不明白。我应该如何使用默认配置而不是使用 hazelcast 配置来解决这个问题？
你能通过给指定的 Config 和配置的 classloader 创建 Hazelcast 实例吗（classloader 可以通过 setClassLoader() 方法设置）它知道 class com.getusroi.config.server.ConfigurationUnit?
此致。