activemq沒有合適的日誌構造函數

Question

這讓我瘋狂。我只是試圖在Mac OSX 10.5.7上運行activemq。我有java版本1.5.0_19和activemq 5.2.0。下面是我運行bin/activemq時得到的異常。它似乎無法找到log4j，這是奇怪的考慮它與activemq並且肯定是在lib/optionals目錄中。我能想到的唯一事情就是我在某個地方發生衝突，但我無法想象這是如何可能的。如果任何人有任何提示，我全部聽到，Google搜索幾乎沒有產生相同的錯誤，並且具有確切錯誤的人沒有解決方案。

> brad-robertsons-macbook-pro:apache-activemq-5.2.0 
> bradrobertson$ ./bin/activemq 
> ACTIVEMQ_HOME: 
> /Users/bradrobertson/Java/apache-activemq-5.2.0 
> ACTIVEMQ_BASE: 
> /Users/bradrobertson/Java/apache-activemq-5.2.0 
> Loading message broker from: 
> xbean:activemq.xml ERROR: 
> java.lang.RuntimeException: Failed to 
> execute start task. Reason: 
> java.io.IOException: Could not load 
> xbean 
> factory:java.lang.ExceptionInInitializerError 
> java.lang.RuntimeException: Failed to 
> execute start task. Reason: 
> java.io.IOException: Could not load 
> xbean 
> factory:java.lang.ExceptionInInitializerError 
> at 
> org.apache.activemq.console.command.StartCommand.runTask(StartCommand.java:98) 
> at 
> org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:57) 
> at 
> org.apache.activemq.console.command.ShellCommand.runTask(ShellCommand.java:129) 
> at 
> org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:57) 
> at 
> org.apache.activemq.console.command.ShellCommand.main(ShellCommand.java:79) 
> 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.apache.activemq.console.Main.runTaskClass(Main.java:225) 
> at 
> org.apache.activemq.console.Main.main(Main.java:106) 
> Caused by: java.io.IOException: Could 
> not load xbean 
> factory:java.lang.ExceptionInInitializerError 
> at 
> org.apache.activemq.util.IOExceptionSupport.create(IOExceptionSupport.java:27) 
> at 
> org.apache.activemq.broker.BrokerFactory.createBrokerFactoryHandler(BrokerFactory.java:43) 
> at 
> org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:70) 
> at 
> org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:54) 
> at 
> org.apache.activemq.console.command.StartCommand.startBroker(StartCommand.java:115) 
> at 
> org.apache.activemq.console.command.StartCommand.runTask(StartCommand.java:74) 
> ... 10 more Caused by: 
> java.lang.ExceptionInInitializerError 
> at 
> sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native 
> Method) at 
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) 
> at 
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) 
> at 
> java.lang.reflect.Constructor.newInstance(Constructor.java:494) 
> at 
> java.lang.Class.newInstance0(Class.java:350) 
> at 
> java.lang.Class.newInstance(Class.java:303) 
> at 
> org.apache.activemq.util.FactoryFinder.newInstance(FactoryFinder.java:55) 
> at 
> org.apache.activemq.util.FactoryFinder.newInstance(FactoryFinder.java:42) 
> at 
> org.apache.activemq.broker.BrokerFactory.createBrokerFactoryHandler(BrokerFactory.java:41) 
> ... 14 more Caused by: 
> org.apache.commons.logging.LogConfigurationException: 
> org.apache.commons.logging.LogConfigurationException: 
> No suitable Log constructor 
> [Ljava.lang.Class;@abcc03 for 
> org.apache.commons.logging.impl.Log4JLogger 
> (Caused by 
> java.lang.NoClassDefFoundError: 
> org/apache/log4j/Category) (Caused by 
> org.apache.commons.logging.LogConfigurationException: 
> No suitable Log constructor 
> [Ljava.lang.Class;@abcc03 for 
> org.apache.commons.logging.impl.Log4JLogger 
> (Caused by 
> java.lang.NoClassDefFoundError: 
> org/apache/log4j/Category)) at 
> org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:543) 
> at 
> org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:235) 
> at 
> org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:209) 
> at 
> org.apache.commons.logging.LogFactory.getLog(LogFactory.java:351) 
> at 
> org.apache.activemq.xbean.XBeanBrokerFactory.<clinit>(XBeanBrokerFactory.java:43) 
> ... 23 more Caused by: 
> org.apache.commons.logging.LogConfigurationException: 
> No suitable Log constructor 
> [Ljava.lang.Class;@abcc03 for 
> org.apache.commons.logging.impl.Log4JLogger 
> (Caused by 
> java.lang.NoClassDefFoundError: 
> org/apache/log4j/Category) at 
> org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:413) 
> at 
> org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:529) 
> ... 27 more Caused by: 
> java.lang.NoClassDefFoundError: 
> org/apache/log4j/Category  at 
> java.lang.Class.getDeclaredConstructors0(Native 
> Method) at 
> java.lang.Class.privateGetDeclaredConstructors(Class.java:2357) 
> at 
> java.lang.Class.getConstructor0(Class.java:2671) 
> at 
> java.lang.Class.getConstructor(Class.java:1629) 
> at 
> org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:410) 
> ... 28 more ERROR: 
> java.lang.Exception: 
> java.io.IOException: Could not load 
> xbean 
> factory:java.lang.ExceptionInInitializerError 
> java.lang.Exception: 
> java.io.IOException: Could not load 
> xbean 
> factory:java.lang.ExceptionInInitializerError 
> at 
> org.apache.activemq.console.command.StartCommand.runTask(StartCommand.java:99) 
> at 
> org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:57) 
> at 
> org.apache.activemq.console.command.ShellCommand.runTask(ShellCommand.java:129) 
> at 
> org.apache.activemq.console.command.AbstractCommand.execute(AbstractCommand.java:57) 
> at 
> org.apache.activemq.console.command.ShellCommand.main(ShellCommand.java:79) 
> 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.apache.activemq.console.Main.runTaskClass(Main.java:225) 
> at 
> org.apache.activemq.console.Main.main(Main.java:106) 
> Caused by: java.io.IOException: Could 
> not load xbean 
> factory:java.lang.ExceptionInInitializerError 
> at 
> org.apache.activemq.util.IOExceptionSupport.create(IOExceptionSupport.java:27) 
> at 
> org.apache.activemq.broker.BrokerFactory.createBrokerFactoryHandler(BrokerFactory.java:43) 
> at 
> org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:70) 
> at 
> org.apache.activemq.broker.BrokerFactory.createBroker(BrokerFactory.java:54) 
> at 
> org.apache.activemq.console.command.StartCommand.startBroker(StartCommand.java:115) 
> at 
> org.apache.activemq.console.command.StartCommand.runTask(StartCommand.java:74) 
> ... 10 more Caused by: 
> java.lang.ExceptionInInitializerError 
> at 
> sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native 
> Method) at 
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) 
> at 
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) 
> at 
> java.lang.reflect.Constructor.newInstance(Constructor.java:494) 
> at 
> java.lang.Class.newInstance0(Class.java:350) 
> at 
> java.lang.Class.newInstance(Class.java:303) 
> at 
> org.apache.activemq.util.FactoryFinder.newInstance(FactoryFinder.java:55) 
> at 
> org.apache.activemq.util.FactoryFinder.newInstance(FactoryFinder.java:42) 
> at 
> org.apache.activemq.broker.BrokerFactory.createBrokerFactoryHandler(BrokerFactory.java:41) 
> ... 14 more Caused by: 
> org.apache.commons.logging.LogConfigurationException: 
> org.apache.commons.logging.LogConfigurationException: 
> No suitable Log constructor 
> [Ljava.lang.Class;@abcc03 for 
> org.apache.commons.logging.impl.Log4JLogger 
> (Caused by 
> java.lang.NoClassDefFoundError: 
> org/apache/log4j/Category) (Caused by 
> org.apache.commons.logging.LogConfigurationException: 
> No suitable Log constructor 
> [Ljava.lang.Class;@abcc03 for 
> org.apache.commons.logging.impl.Log4JLogger 
> (Caused by 
> java.lang.NoClassDefFoundError: 
> org/apache/log4j/Category)) at 
> org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:543) 
> at 
> org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:235) 
> at 
> org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:209) 
> at 
> org.apache.commons.logging.LogFactory.getLog(LogFactory.java:351) 
> at 
> org.apache.activemq.xbean.XBeanBrokerFactory.<clinit>(XBeanBrokerFactory.java:43) 
> ... 23 more Caused by: 
> org.apache.commons.logging.LogConfigurationException: 
> No suitable Log constructor 
> [Ljava.lang.Class;@abcc03 for 
> org.apache.commons.logging.impl.Log4JLogger 
> (Caused by 
> java.lang.NoClassDefFoundError: 
> org/apache/log4j/Category) at 
> org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:413) 
> at 
> org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:529) 
> ... 27 more Caused by: 
> java.lang.NoClassDefFoundError: 
> org/apache/log4j/Category  at 
> java.lang.Class.getDeclaredConstructors0(Native 
> Method) at 
> java.lang.Class.privateGetDeclaredConstructors(Class.java:2357) 
> at 
> java.lang.Class.getConstructor0(Class.java:2671) 
> at 
> java.lang.Class.getConstructor(Class.java:1629) 
> at 
> org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:410) 
> ... 28 more 

Answer 1

所以，這肯定是與另一個log4j jar文件衝突。我認爲這可能是我的eclipse插件log4j有衝突。當我從activemq lib /可選的刪除log4j它的作品。

Answer 2

這看起來異常由NoClassDefFoundError爲org.apache.log4j.Category所引起。您應該確保log4j jar包在類路徑中。

編輯：有沒有什麼辦法可以檢查ACTIVEMQ_CLASSPATH變量的值？如果您通過設置變量的腳本來調用它，您可能需要深入研究腳本以確保它將所有您認爲是的目錄添加到類路徑中。