xuanxi at taobao.com
Wed Dec 22 00:41:43 PST 2010
Hi, the HotSwap.patch is amazing work. We expressed regarding this is excited¡£ We try it on windows for debug our application¡£
But some errors happen¡£
We use jre 1.6.0_23.
1,when we load eclipse eclipse often alert permgen OOM¡£
2£¬when we load jboss£¬jboss often crash¡£The jvm erro message are in the attachment¡£
Would you tell me how to solve this¡£
·¢¼þÈË: mlvm-dev-bounces at openjdk.java.net [mailto:mlvm-dev-bounces at openjdk.java.net] ´ú±í Thomas Wuerthinger
·¢ËÍÊ±¼ä: 2010Äê12ÔÂ18ÈÕ 19:16
ÊÕ¼þÈË: Da Vinci Machine Project
Ö÷Ìâ: Re: Enhanced HotSwapping
The enhanced hotswapping can be triggered using either the low-level
JNI/JVMTI interface, class file transformers, or the JDWP debugger
interface. There is no API change compared to the restricted hotswapping.
We are currently working on providing a Java API too. In our
implementation of dynamic mixins for Java
(http://ssw.jku.at/dcevm/mixins/), we are using such a Java API to
directly trigger the class redefinition from Java code. Our mixin
implementation allows to dynamically add an interface and its
implementation to an existing class.
On 12/18/10 5:49 AM, Chanwit Kaewkasi wrote:
> Hello Thomas,
> It looks cool, and thank you for binaries.
> Is this working through the debugger interface or JVMTI agents?
> On Sat, Dec 18, 2010 at 00:56, Thomas Wuerthinger
> <thomas.wuerthinger at gmail.com> wrote:
>> The source code for the HotSpot version that allows enhanced hotswapping
>> (e.g., add and remove methods, fields, and super types) was just updated
>> in the mlvm repository. There exists now also a light version of the
>> modifications "hotswaplight.patch" that minimizes the difference to the
>> current OpenJDK source code by omitting some of the more advanced
>> features (e.g., method forwarding, calling deleted old methods,
>> transformer methods). The enhanced VM passes all tests of Oracle's class
>> redefinition test suite and comes with unit tests for the new features.
>> There are binary builds available from "http://ssw.jku.at/dcevm" for
>> Mac, Linux, and Windows. So, feel free to install a VM with the new
>> hotswapping capabilities on your machine and test them using your
>> favorite Java IDE.
>> - thomas
>> mlvm-dev mailing list
>> mlvm-dev at openjdk.java.net
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