Thanks Mark, I'll see what I can do.
Rgds, Rory
On 18/05/2016 12:33, Mark Thomas wrote:
Rory,
Thanks for letting us know that a new build is available. We continue to
test Tomcat with Java 9 and are tracking multiple issues. The majority
of these have emerged as a result of a review of Tomcat's memory leak
prevention and detection code.
We would appreciate any help you can provide in nudging the following
issues towards resolution. Some of these are very new so it is not
surprising that not much has happened so far.
1. JVMTI bug that prevents tools like YourKit and Eclipse MAT
identifying the root causes of memory leaks caused by initialization of
static Exception fields.
Review ID: JI-9037905
2. Memory leak in com.sun.jndi.ldap.pool.PoolCleaner
http://mail.openjdk.java.net/pipermail/core-libs-dev/2016-May/040988.html
https://bugs.openjdk.java.net/browse/JDK-8156824
3. Memory leak in sun.rmi.transport.GC
http://mail.openjdk.java.net/pipermail/core-libs-dev/2016-May/040893.html
4. API to trace RMI Target memory leaks without resorting to reflection
(I accept that this is unlikely but If you don't ask...)
http://mail.openjdk.java.net/pipermail/core-libs-dev/2016-May/040855.html
5. Rare memory leak in sun.security.pkcs11.SunPKCS11 poller thread
http://mail.openjdk.java.net/pipermail/security-dev/2016-May/013841.html
We have also noticed that JSP compilation is broken. Our current
understanding is that we should be able to fix this with an update to
the Eclipse JDT compiler. We'll let you know if that changes.
Finally, there are still some memory leak issues we haven't reviewed. As
that progresses, we may have a few more issues to add to the memory leak
issues listed above.
Kind regards,
Mark
On 18/05/2016 09:31, Rory O'Donnell wrote:
Hi Mark,
Early Access b118 <https://jdk9.java.net/download/> for JDK 9 is
available on java.net, summary of changes are listed here
<http://www.java.net/download/java/jdk9/changes/jdk-9+118.html>.
Early Access b118 <https://jdk9.java.net/jigsaw/> (#4913) for JDK 9 with
Project Jigsaw is available on java.net.
JDK 9 Build 118 includes a refresh of the module system.
There are several changes in this update, JDK 9 b118 has the updated
policy for root modules described
in JEP 261 [1]. This means that java.corba and the 6 EE modules aren't
resolved by default and so it will
look "as if" the types in these modules have been removed. More info on
the JDK 9 dev mailing list [2].
A change that went into JDK 9 b102 is worth mentioning:
JDK9: Remove stopThread RuntimePermission from the default java.policy
In previous releases, untrusted
code had the "stopThread" RuntimePermission granted by default. This
permission allows untrusted code
to call Thread.stop(), initiating an asynchronous ThreadDeath Error, on
threads in the same thread group.
Having a ThreadDeath Error thrown asynchronously is not something that
trusted code should be expected
to handle gracefully. The permission is no longer granted by default.
Rgds,Rory
[1] http://openjdk.java.net/jeps/261
[2] http://mail.openjdk.java.net/pipermail/jdk9-dev/2016-May/004309.html
--
Rgds,Rory O'Donnell
Quality Engineering Manager
Oracle EMEA , Dublin, Ireland
