JDK-8009204 : [dtrace] signatures returned by Java 7 jstack() are corrupt on Solaris
- Type: Bug
- Component: hotspot
- Sub-Component: svc
- Affected Version: hs24,hs25
- Priority: P3
- Status: Resolved
- Resolution: Fixed
- Submitted: 2013-02-28
- Updated: 2014-10-14
- Resolved: 2013-07-02
The Version table provides details related to the release that this issue/RFE will be addressed.
Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
To download the current JDK release, click here.
Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
To download the current JDK release, click here.
| JDK 8 | Other |
|---|---|
8Fixed  |
hs25Fixed |
Related Reports
|
Relates :
|
|
|
Relates :
|
Description
jstack() is returning corrupt method signatures on Solaris. To reproduce, you can use DTrace:
dtrace -x jstackstrsize=2048 -Z \
-n 'hotspot_jni$target::: /0/{}' \
-n 'syscall::write:entry /pid==$target/{jstack(1024)}' \
-c 'java -version'
With Java 6, the output is roughly:
java/io/FileOutputStream.writeBytes([BII)V
java/io/FileOutputStream.write([BII)V
java/io/BufferedOutputStream.flushBuffer()V
java/io/BufferedOutputStream.flush()V
java/io/PrintStream.write([BII)V
With Java 7, the output is roughly:
java/io/FileOutputStream.riteBytes
java/io/FileOutputStream.rite
java/io/BufferedOutputStream.lushBuffer
java/io/BufferedOutputStream.lush
java/io/PrintStream.rite
As you can see, the method names are truncated.
As of 2013-02-27, Solaris is not yet built with Java 7. You can contact me (sam.falkner at oracle dot com) if you need access to a machine that reproduces the bug.
Comments
|