问题
I tried http://www.oracle.com/technetwork/middleware/jrockit/downloads/index.html but all I get is
The content on this page is no longer available but your downloads may be found on the Oracle Java Archive page.
回答1:
See Java 7 Questions & Answers (circa 2011):
Q: When will JRockit be available for Java 7?
A: It won't. As we explained last year we are merging JRockit and HotSpot into one single JVM. JDK 7 contains the first release of this converged JVM, where one of the first steps was to start removing the PermGen concept. Future JDK 7 updates will complete the PermGen removal, as well as add more visible features from JRockit.
回答2:
Do also note that the commands in most cases just removed the R from JRockit commands.
JRCMD becomes JCMD
JRMC becomes JMC
- JRockit R28: http://docs.oracle.com/cd/E15289_01/doc.40/e15061/toc.htm
- HotSpot 8: http://docs.oracle.com/javase/8/docs/technotes/tools/unix/
Flight recording is even better because it - again - can make periodic thread dumps which had been removed in JRockit R28 but was available in JRockit R27.
The only feature I miss is JRockit Deterministic GC. But therefore we have an improved CMS collector and the G1 collector. Time will show whether this is a real alternative.
来源：https://stackoverflow.com/questions/23578099/where-to-download-jrockit-for-java-7