Spring boot项目引入jar包时启动报错：java.lang.StackOverflowError
我在学习spring cloud zipkin时，引入如下jar后，
<!-- 引入zipkin-server -->
<dependency>
<groupId>io.zipkin.java</groupId>
<artifactId>zipkin-server</artifactId>
<version>2.11.7</version>
</dependency>
<!-- 引入zipkin-server 图形化界面 -->
<dependency>
<groupId>io.zipkin.java</groupId>
<artifactId>zipkin-autoconfigure-ui</artifactId>
<version>2.11.7</version>
</dependency> 项目一直起不来，一直报如下错误：
SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]
Exception in thread "main" java.lang.StackOverflowError
at org.apache.logging.log4j.util.StackLocator.getCallerClass(StackLocator.java:112)
at org.apache.logging.log4j.util.StackLocator.getCallerClass(StackLocator.java:125)
at org.apache.logging.log4j.util.StackLocatorUtil.getCallerClass(StackLocatorUtil.java:55)
at org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:42)
at org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:46)
at org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:29)
栈内存溢出。。
修改启动的内存参数也无效，后来百度了下得到点启示，应该是加入的jar中有log4j的依赖与spring boot自带的冲突，造成类加载有问题，有可能是死循环造成内存不足，解决办法就是排除掉新加入的jar包中log4j的依赖删除了。这样就OK了。
<!-- 引入zipkin-server -->
<dependency>
<groupId>io.zipkin.java</groupId>
<artifactId>zipkin-server</artifactId>
<version>2.11.7</version>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- 引入zipkin-server 图形化界面 -->
<dependency>
<groupId>io.zipkin.java</groupId>
<artifactId>zipkin-autoconfigure-ui</artifactId>
<version>2.11.7</version>
</dependency>