Builds failing after upgrading to Java7, Missing Tools.jar and bad class versions

Question

I recently upgraded to Java7 on my Macbook Pro. I downloaded the JDK (not the JRE).

» javac version
javac 1.7.0_17

» echo $JAVA_HOME    
/Library/Java/Java         


        

Answer 1

Most probably javac is running from JRE and not JDK. tools.jar is only available in JDK. Confirm the path of javac/java by using which

which javac

Drag correct Java7 version to top in Java Preferences (Launchapad/Others). That should point A to JDK7.