Question

这让我疯了。我只是想在Mac OSX 10.5.7上运行activemq。我有java版本1.5.0_19和activemq 5.2.0。以下是运行bin / activemq时的异常。它似乎无法找到log4j，这是奇怪的，因为它与activemq一起，并且肯定在lib / optionals目录中。我唯一能想到的是我在某处发生了冲突，但我无法想象这是怎么回事。如果有人有任何提示我都是耳朵，谷歌搜索几乎没有产生相同错误的结果，并且有一个确切错误的人没有解决方案。

> 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

这似乎是由NoClassDefFoundError org.apache.log4j.Category引起的异常。您应该确保log4j jar在类路径上。

修改：您有什么办法可以检查ACTIVEMQ_CLASSPATH变量的值吗？如果您通过设置变量的脚本调用此方法，则可能需要深入了解脚本以确保它将您认为的所有目录添加到类路径中。

Answer 2

所以，它肯定与另一个log4j jar文件冲突。我认为可能是我的eclipse插件log4j存在冲突。当我从activemq lib / optional中删除log4j时，它可以工作。

activemq没有合适的Log构造函数

2 个答案: