I am trying to compile mahout, I have temporarily changed the JAVA_HOME variable like this: and I checked that it was changed correctly using this command: which returns: But when I run mahout mvn clean install -DskipTests=true I run into this error: Error: JAVA_HOME is not defined correctly. We cannot execute /usr/lib/jvm/java-1.6.0-openjdk-1.6.0.33.x86_64/bin/java I am not sure how this bin/java has