Linux安装JDK排错：occurred during initialization of VM java/lang/NoClassDefFoundError: java/lang/Object

安装 jdk-8u152-linux-x64.rpm后，执行java报如下错误：

[root@xxxx ~]# java -version
Error occurred during initialization of VM
java/lang/NoClassDefFoundError: java/lang/Object

检查发现:

/usr/java/jdk1.8.0_152/lib下没有tools.jar

/usr/java/jdk1.8.0_152/jre/lib下没有rt.jar

但是有同名的pack文件，需要使用jdk自带的unpack工具解压：

cd /usr/java/jdk1.8.0_152/lib
/usr/java/jdk1.8.0_152/bin/unpack200 tools.pack tools.jar

cd /usr/java/jdk1.8.0_152/jre/lib
/usr/java/jdk1.8.0_152/bin/unpack200 rt.pack rt.jar

问题解决。