jdk16_23/24 bug

最新推荐文章于 2025-05-13 23:37:37 发布

最新推荐文章于 2025-05-13 23:37:37 发布 · 91 阅读

文章标签：

#SUN #JVM #Oracle #UP

本文探讨了JPS工具在JDK16版本中遇到的问题，特别是当JVM启动时修改了临时目录路径后，JPS无法正确找到进程号的情况。此问题已作为bug提交至Oracle。

之前的版本中对于jps需要读取的文件，JVM启动时写入的固定的目录 %TMP%或$TMP下的hsperfdata_usrname/$pid

但是对于jdk16_23/24 bug，这个文件路径根据-Djava.io.tmpdir来写入。但JPS却不知道去哪里查找这个文件，仍然会去

/tmp/hsperfdata_usrname下面查找进程号，所以如果你的JVM启动时修改了Djava.io.tmpdir,那么JPS就会查找出错误的进程号。

这个问题我已经提交了bug report.提交后一分钟，oracle立即就回信确认这是一个bug，而不象以往要经过测试很久才确认是否是bug.

Dear Java Developer, 

Thank you for reporting this issue.

We have determined that this report is a new bug and entered the bug into our internal bug tracking system under Bug Id: 7021676.

You can monitor this bug on the Java Bug Database at
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7021676.

It may take a day or two before your bug shows up in this external database. If you are a member of the Sun Developer Network (SDN), there are two additional options once the bug is visible.

1. Voting for the bug
Click http://bugs.sun.com/bugdatabase/addVote.do?bug_id=7021676.

2. Adding the report to your Bug Watch list.
You will receive an email notification when this bug is updated.
Click http://bugs.sun.com/bugdatabase/addBugWatch.do?bug_id=7021676.

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Regards, 
Java Developer Support