Question

我按照下面给出的卡拉夫酒窖的例子， http://blog.nanthrax.net/2011/11/apache-karaf-cellar-and-dosgi/

我创建了3个OSGi包，即服务（Bundle1），服务实现（Bundle2）和客户端（Bundle3）。我有2个karaf容器在不同的机器上运行，其中（Bundle1）和（Bundle2）部署在一个karaf实例上，（Bundle1）和（Bundle3）部署在其他karaf实例上。如示例中给出的那样，每件事情都很好。我从Karaf container2中删除了客户端包，并希望通过蓝图中描述的camel路由调用该服务。

<?xml version="1.0" encoding="UTF-8"?>
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="
http://www.osgi.org/xmlns/blueprint/v1.0.0
http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd">
    <reference id="myService" interface="org.service.cellar.EchoService"     timeout="20000" availability="optional" />
    <camelContext id="camel" trace="false"
        xmlns="http://camel.apache.org/schema/blueprint">
        <route id="client">
            <from uri="timer://foo?fixedRate=true&amp;period=10000" />
            <bean ref="myService" method="process" />
            <log message=" Invoking Service : ${body}" />
        </route>
    </camelContext>
</blueprint>

一旦我在karaf container2中部署了上述蓝图，我就在karaf容器中看到以下异常1.我无法找出此错误的来源。任何关于这个问题的评论都表示赞赏。

谢谢。

2012-10-15 13:24:40,477 | ERROR | pool-11-thread-7 | EventDispatchTask                | 78 - org.apache.karaf.cellar.core - 2.2.4 | Error while dispatching task
java.lang.NullPointerException
        at org.apache.karaf.cellar.dosgi.RemoteServiceCallHandler.handle(RemoteServiceCallHandler.java:74)[83:org.apache.karaf.cellar.dosgi:2.2.4]
        at org.apache.karaf.cellar.dosgi.RemoteServiceCallHandler.handle(RemoteServiceCallHandler.java:34)[83:org.apache.karaf.cellar.dosgi:2.2.4]
        at sun.reflect.GeneratedMethodAccessor31.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)[:1.6.0_35]
        at java.lang.reflect.Method.invoke(Method.java:597)[:1.6.0_35]
        at org.apache.aries.proxy.impl.ProxyHandler$1.invoke(ProxyHandler.java:50)[7:org.apache.aries.proxy:0.3.1]
        at org.apache.aries.proxy.impl.DefaultWrapper.invoke(DefaultWrapper.java:31)[7:org.apache.aries.proxy:0.3.1]
        at org.apache.aries.proxy.impl.ProxyHandler.invoke(ProxyHandler.java:78)[7:org.apache.aries.proxy:0.3.1]
        at $Proxy24.handle(Unknown Source)[78:org.apache.karaf.cellar.core:2.2.4]
        at org.apache.karaf.cellar.core.event.EventDispatchTask.run(EventDispatchTask.java:77)[78:org.apache.karaf.cellar.core:2.2.4]
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)[:1.6.0_35]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)[:1.6.0_35]
        at java.lang.Thread.run(Thread.java:662)[:1.6.0_35]

卡拉夫酒窖投掷异常与蓝图路线部署

0 个答案: