activemq لا يوجد مُنشئ سجل مناسب

Question

هذا يقودني الى الجنون.أنا ببساطة أحاول تشغيل activemq على نظام التشغيل Mac OSX 10.5.7.لدي إصدار جافا 1.5.0_19 وactivemq 5.2.0.يوجد أدناه الاستثناء الذي أحصل عليه عند تشغيل bin/activemq.يبدو أنه غير قادر على العثور على log4j وهو أمر غريب بالنظر إلى أنه يأتي مع activemq وهو بالتأكيد موجود في دليل lib/Options.الشيء الوحيد الذي يمكنني التفكير فيه هو أن لدي صراعًا في مكان ما، لكن لا أستطيع أن أتخيل كيف يكون هذا ممكنًا.إذا كان لدى أي شخص أي نصائح على الإطلاق، فأنا كلي آذان صاغية، فلن ينتج عن البحث على Google أي نتائج تقريبًا بنفس الخطأ، والشخص الوحيد الذي لديه الخطأ الدقيق ليس لديه حل.

> 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

وهكذا، كان من المؤكد أن الصراع مع ملف log4j جرة أخرى. اعتقد انها ربما بلدي الكسوف المساعد log4j التي كانت متضاربة. عندما حذف log4j من ليب activemq / اختياري يعمل.

Answer 2

يبدو أن هذا الاستثناء يحدث بسبب a NoClassDefFoundError ل org.apache.log4j.Category.يجب عليك التأكد من أن log4j jar موجود في مسار الفصل.

يحرر: هل هناك أي طريقة يمكنك من خلالها فحص قيمة ACTIVEMQ_CLASSPATH عامل؟إذا كنت تستدعي هذا من خلال برنامج نصي يقوم بتعيين المتغير، فقد تحتاج إلى البحث في البرنامج النصي للتأكد من أنه يضيف جميع الدلائل التي تعتقد أنها موجودة في مسار الفصل.