0000411: JDK 1.5 monitoring tools get ClassFormatError

411

minor

always

10-03-05 00:00

03-09-06 13:29

Reporter:

sergek

Platform:

Assigned To:

ferg

OS:

Priority:

normal

OS Version:

Status:

closed

Product Version:

3.0.14

Product Build:

3.0.14

Resolution:

fixed

Projection:

none

ETA:

none

Fixed in Version:

3.0.19

Summary:

0000411: JDK 1.5 monitoring tools get ClassFormatError

Description:

RSN-457
The JDK 1.5/5.0 bundles various monitoring tools that used to be under the jvmstat program, e.g., jps, jstack, jconsole, jinfo, etc...

Many of these tools will not work or have limited use against a Resin instance and will spit out the following error...

[root@server] jps
25083 Jps
21746 Resin
[root@server] jinfo 21746
Attaching to process ID 21746, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 1.5.0_04-b05
Java System Properties:

Exception in thread "main" java.lang.ClassFormatError: Invalid method attribute
name index 0 in class file com/caucho/loader/EnvironmentProperties
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:465)
        at sun.jvm.hotspot.utilities.ProcImageClassLoader.findClass(ProcImageClassLoader.java:35)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:242)
        at sun.jvm.hotspot.utilities.ObjectReader.readClass(ObjectReader.java:461)
        at sun.jvm.hotspot.utilities.ObjectReader.readInstance(ObjectReader.java:125)
        at sun.jvm.hotspot.utilities.ObjectReader.readObject(ObjectReader.java:73)
        at sun.jvm.hotspot.runtime.VM$2.doOop(VM.java:680)
        at sun.jvm.hotspot.oops.InstanceKlass.visitField(InstanceKlass.java:707)
        at sun.jvm.hotspot.oops.InstanceKlass.iterateFields(InstanceKlass.java:435)
        at sun.jvm.hotspot.oops.Oop.iterate(Oop.java:112)
        at sun.jvm.hotspot.runtime.VM.readSystemProperties(VM.java:675)
        at sun.jvm.hotspot.runtime.VM.getSystemProperties(VM.java:668)
        at sun.jvm.hotspot.tools.SysPropsDumper.run(SysPropsDumper.java:18)
        at sun.jvm.hotspot.tools.JInfo$1.run(JInfo.java:52)
        at sun.jvm.hotspot.tools.JInfo.run(JInfo.java:67)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JInfo.main(JInfo.java:111)

Obviously this might be a bug in these tools, but it seems that something special is being done to that one Resin class, and perhaps if that could be worked around, it would be easier to use some free JDK-bundled tools on Resin.

Steps To Reproduce:

Additional Information:

JDK 1.5.0_04 Linux i386 RHEL3

Relationships

Attached Files:

Mantis - Resin
Viewing Issue Advanced Details

ID:	Category:	Severity:	Reproducibility:	Date Submitted:	Last Update:
411		minor	always	10-03-05 00:00	03-09-06 13:29

Reporter:	sergek	Platform:
Assigned To:	ferg	OS:
Priority:	normal	OS Version:
Status:	closed	Product Version:	3.0.14
Product Build:	3.0.14	Resolution:	fixed
Projection:	none
ETA:	none	Fixed in Version:	3.0.19

Summary:	0000411: JDK 1.5 monitoring tools get ClassFormatError
Description:	RSN-457 The JDK 1.5/5.0 bundles various monitoring tools that used to be under the jvmstat program, e.g., jps, jstack, jconsole, jinfo, etc... Many of these tools will not work or have limited use against a Resin instance and will spit out the following error... [root@server] jps 25083 Jps 21746 Resin [root@server] jinfo 21746 Attaching to process ID 21746, please wait... Debugger attached successfully. Server compiler detected. JVM version is 1.5.0_04-b05 Java System Properties: Exception in thread "main" java.lang.ClassFormatError: Invalid method attribute name index 0 in class file com/caucho/loader/EnvironmentProperties at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:620) at java.lang.ClassLoader.defineClass(ClassLoader.java:465) at sun.jvm.hotspot.utilities.ProcImageClassLoader.findClass(ProcImageClassLoader.java:35) at java.lang.ClassLoader.loadClass(ClassLoader.java:306) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:242) at sun.jvm.hotspot.utilities.ObjectReader.readClass(ObjectReader.java:461) at sun.jvm.hotspot.utilities.ObjectReader.readInstance(ObjectReader.java:125) at sun.jvm.hotspot.utilities.ObjectReader.readObject(ObjectReader.java:73) at sun.jvm.hotspot.runtime.VM$2.doOop(VM.java:680) at sun.jvm.hotspot.oops.InstanceKlass.visitField(InstanceKlass.java:707) at sun.jvm.hotspot.oops.InstanceKlass.iterateFields(InstanceKlass.java:435) at sun.jvm.hotspot.oops.Oop.iterate(Oop.java:112) at sun.jvm.hotspot.runtime.VM.readSystemProperties(VM.java:675) at sun.jvm.hotspot.runtime.VM.getSystemProperties(VM.java:668) at sun.jvm.hotspot.tools.SysPropsDumper.run(SysPropsDumper.java:18) at sun.jvm.hotspot.tools.JInfo$1.run(JInfo.java:52) at sun.jvm.hotspot.tools.JInfo.run(JInfo.java:67) at sun.jvm.hotspot.tools.Tool.start(Tool.java:204) at sun.jvm.hotspot.tools.JInfo.main(JInfo.java:111) Obviously this might be a bug in these tools, but it seems that something special is being done to that one Resin class, and perhaps if that could be worked around, it would be easier to use some free JDK-bundled tools on Resin.
Steps To Reproduce:
Additional Information:	JDK 1.5.0_04 Linux i386 RHEL3
Relationships
Attached Files: