The Java EE 7 Platform and Web Profile JSR (Java Specification Request) has passed the JCP Executive Committee Final Approval Ballot. "This completes the JCP approval process for all of the JSRs ...

In addition, developers should be able to use JCache alongside Java EE 7 “as a drop-in API provided the spec is finalized far ahead of Java EE 8,” it stated.

This goes far beyond what JSR-356 does in Java EE 7; note that we do support JSR-356 as a foundation but rather focus on the higher-level interaction patterns in our own WebSocket programming model.