Hello, i have download java jdk 7 install it .. and set - export JAVA_HOME=/usr/lib/jvm/jdk1.7.0_71/bin/java
export PATH=$PATH:/usr/lib/jvm/jdk1.7.0_71/bin sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jdk1.7.0_71/bin/java" 1 sudo update-alternatives --set java /usr/lib/jvm/jdk1.7.0_71/bin/java java -version java version "1.7.0_71" Java(TM) SE Runtime Environment (build 1.7.0_71-b14) Java HotSpot(TM) 64-Bit Server VM (build 24.71-b01, mixed mode) but when compile i get - BUILD FAILED : bad substitution Error: JAVA_HOME is not defined correctly. We cannot execute /usr/lib/jvm/jdk1.7.0_71/bin/java/bin/java Thank you