Oracle says that starting with April 18, 2017, Java (JRE) will treat all JAR files signed with the MD5 algorithm as unsigned, meaning they'll be considered insecure and blocked from running.

Starting in April, Oracle will treat JAR files signed with the MD5 hashing algorithm as if they were unsigned, which means modern releases of the Java Runtime Environment (JRE) will block those ...

“In the course of functioning as a worldwide data broker, Oracle has created a network that tracks in real time and records indefinitely the personal information of hundreds of millions of ...