Installing Java on your Mac is ill-advised, since it can lead to security headaches when enabled in Web browsers. But now Oracle has made installing Java an even worse proposition by bundling the Ask Search Extension with the Java installer. The Ask extension, long included in the Java installer for Windows, is considered adware and should be avoided. follow link
Thoughtful, detailed coverage of the Mac, iPhone, and iPad, plus the TidBITS Content Network for Apple consultants.
Another Reason to Not Install Java