CN2007

【1】下载JDK http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html 选择合适版本下载，本人下载的 jdk-7u45-linux-i586.tar.gz 【2】配置JAVA环境 解压后将文件夹移动到/usr/lib/下，命名jdk 编辑/etc/profile,再最

The issue is because of Java version mismatch. Java SE 12 = 56 (0x38 hex) Java SE 11 = 55 (0x37 hex) Java SE 10 = 54 Java SE 9 = 53 Java SE 8 = 52 Java SE 7 = 51 Java SE 6.0 = 50 Java SE 5.0 = 49 JDK ...