记录一次项目引用导致的StackOverflowError

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概述下情况maven eclipse开发,jdk1.7
一个项目分成3个模块,独立打包
xxx下面是3个子项目xx.dao,xx.service,xx.proxy
调用关系是Proxy->service->dao
其中dao和Service打包和单元测试均正常,开发到Proxy进行单元测试的时候爆出如下异常

五月 27, 2017 3:25:25 下午 org.springframework.test.context.TestContextManager retrieveTestExecutionListeners信息: @TestExecutionListeners is not present for class [class xx.xxProxyTest]: using defaults.

看了下junit的异常更加诡异

java.lang.StackOverflowError    at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:988)    at org.apache.log4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:39)    at org.apache.log4j.LogManager.getLogger(LogManager.java:45)    at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:73)    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:358)    at org.apache.log4j.Category.<init>(Category.java:57)    at org.apache.log4j.Logger.<init>(Logger.java:37)    at org.apache.log4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:43)    at org.apache.log4j.LogManager.getLogger(LogManager.java:45)    at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:73)    at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:358)    at org.apache.log4j.Category.<init>(Category.java:57)

我甚至调了eclipse的配置文件,发现无效,又试下其他一些无效的方法,最终通过将dao和Service引入proxy才成功跑通了测试用例,记录下来,避免再犯。

补上单元测试

@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration(locations = { "file:src/test/resources/config/spring-placeholder.xml" })public class xxxProxyTest  {    @Resource    xxxxServiceProxy xxxxServiceProxy;    @Test    public void testSelectCustaccount() {        List list = xxxxServiceProxy.selectCustaccount(1);        System.out.println("1111111111" + JSON.toJSONString(list));    }}

注意,spring-placeholder.xml配置的是自动扫描,所以xxxxServiceProxyImpl还是需要加上@Resource注解的,不然还是这个报错。

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