Question

我们已将企业软件从Java 7迁移到Java 8，并随之将Spring更新到4.3.4版。从那时起部署失败，因为StackOverflowError导致无法初始化其中一个bean：

Caused By: java.lang.StackOverflowError
    at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:204)
    at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:204)
    at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:204)
    at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:204)
    at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:204)
    at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:204)
    at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:204)
    at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:204)
    at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:204)
    at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:204)
    at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:204)
    at org.springframework.scheduling.commonj.WorkManagerTaskExecutor.schedule(WorkManagerTaskExecutor.java:204)

如您所见，方法schedule（）被递归调用，导致堆栈溢出。该应用程序部署在Weblogic版本12.1.3上;这是WorkManagerTaskExecutor.schedule（）的代码片段：

return this.workManager.schedule(work);

因此，这应该将调度调用委托给目标WorkManager对象。但是，根据我们的调试分析， WorkManagerTaskExecutor 中的私有成员 workManager 已使用 WorkManagerTaskExecutor 类型的实例进行初始化，即 this时.workManager.schedule（work）; 被执行，它正在调用 WorkManagerTaskExecutor.schedule（），从而导致递归调用。

目标WorkManager for Weblogic在部署描述符中设置如下： ...

<resource-ref>
            <res-ref-name>wm/MyWorkManager</res-ref-name>
            <res-type>commonj.work.WorkManager</res-type>
            <res-auth>Container</res-auth>
            <res-sharing-scope>Shareable</res-sharing-scope>
        </resource-ref>

...

<work-manager>
    <name>wm/ODSCacheWorkManager</name>
    <max-threads-constraint>
        <name>MaxThreads</name>
        <count>1</count>
    </max-threads-constraint>
    <ignore-stuck-threads>true</ignore-stuck-threads>
</work-manager>

...

在Spring应用程序上下文中：

<bean autowire="byType" id="taskExecutor" class="org.springframework.scheduling.commonj.WorkManagerTaskExecutor">
            <property name="workManagerName" value="java:comp/env/wm/MyWorkManager"/>
            <property name="resourceRef" value="true"/>
        </bean>

为什么 WorkManagerTaskExecutor 中的 workManager 再次初始化为 WorkManagerTaskExecutor 的实例，导致递归，我们正在认真思考。社区可以提供帮助吗？

Spring4 / Java 8 / Weblogic 12 - WorkManagerTaskExecutor.schedule导致StackOverFlowError的递归调用

0 个答案: