Unable to locate an executable at "/usr/bin/java/bin/java"
You probably can just remove the definition of JAVA_HOME from .bash_profile and restart the shell. If you really need to set the variable, use

export JAVA_HOME=$(/System/Library/Frameworks/JavaVM.framework/Versions/A/Commands/java_home)


to define it dynamically depending on the installed JDK version or

export JAVA_HOME=/Library/Java/Home


to use the default place (which is symlinked to the above path).