\"org.osgi.util.tracker.ServiceTracker.getServices()\" 在 JDK 17 中为空答案

【问题标题】："org.osgi.util.tracker.ServiceTracker.getServices()" is null with JDK 17\"org.osgi.util.tracker.ServiceTracker.getServices()\" 在 JDK 17 中为空
【发布时间】：2022-09-26 12:46:52
【问题描述】：

我有一个在 JDK 1.8 和 11 中运行良好的项目。但是，当我在 JDK 17 中运行该项目时，出现如下所示的 osgi 问题。

Invocation of init method failed; nested exception is java.lang.NullPointerException: Cannot load from object array because the return value of \"org.osgi.util.tracker.ServiceTracker.getServices()\" is null
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:342) ~[?:?]
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:113) ~[?:?]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1707) ~[?:?]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1452) ~[?:?]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619) ~[?:?]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542) ~[?:?]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[?:?]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[?:?]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[?:?]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208) ~[?:?]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:953) ~[?:?]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918) ~[?:?]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583) ~[?:?]
at org.apache.cxf.transport.servlet.CXFServlet.createSpringContext(CXFServlet.java:174) ~[?:?]
at org.apache.cxf.transport.servlet.CXFServlet.loadBus(CXFServlet.java:76) ~[?:?]
at org.apache.cxf.transport.servlet.CXFNonSpringServlet.init(CXFNonSpringServlet.java:92) ~[?:?]
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1164) ~[tomcat_9.0.58.wso2v1.jar:?]

我也发现了 [1] 中提出的确切问题，但没有解决方案。

[1]Are there any OSGi versions that are supported by Java 17?

标签： java osgi cxf java-17

【解决方案1】：

对我来说，当我尝试运行 JDK 18 并且之后我使用了 1.8 java 版本并且它在没有任何 osg 错误的情况下启动时，也是同样的问题。

根据日志信息，似乎它将支持到 jdk 11。

【讨论】：