/usr/bin Permission change OSX 10.9 Mavericks
/usr/bin/java is no valid folder in any installation or version of Java (I know of).

Instead the file /usr/bin/java is a symlink to /System/Library/Frameworks/JavaVM.framework/Versions/A/Commands/java installed by the default Apple Java installer (v1.6.x).

The Oracle Java installer (either JDK/SDK or JRE) is installed to /Library/Java.