You asked for an OpenJDK 7 build but your version is java version "1.7.0_72" Java(TM) SE

You asked for an OpenJDK 7 build but your version is java version "1.7.0_72" Java(TM) SE Runtime Environment (build 1.7.0_72-b14) Java HotSpot(TM) 64-Bit Server VM (build 24.72-b04, mixed mode). ************************************************************ build/core/main.mk:191: *** stop. Stop. #### make failed to build some targets #### 问题解决办法：     Put the jdk_switch.sh in my ~ directory and run the following commands to switch jdk version: $ . ./jdk_switch.sh jdk7 $ . ./jdk_switch.sh jdk6 The path of JDK are: /usr/lib/jvm/java-6-oracle/ /usr/lib/jvm/java-7-openjdk-amd64/ The content of jdk_switch.sh: #!/bin/bash case $1 in jdk6) export JAVA_HOME=/usr/lib/jvm/java-6-oracle/ ;; jdk7) export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64/ ;; *) export JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64/ ;; esac export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib java -version OpenJDK 7 version is :   java -version java version "1.7.0_65" OpenJDK Runtime Environment (IcedTea 2.5.3) (7u71-2.5.3-0ubuntu0.12.04.1) OpenJDK 64-Bit Server VM (build 24.65-b04, mixed mode) In your case, exporting your PATH and CLASSPATH might helpful. Or just use a simple bash script. I hope this might help you.