APAR status
Closed as program error.
Error description
In certain error situations, the JVM does not properly convert messages to UTF-8 prior to throwing an exception, which causes a crash. The crash specifically happens when launching a new process using java/lang/Runtime.exec The stack trace looks something like this: 1 _TDUMP +000000C2 *PATHNAM 2 j9dump_create +00000418 *PATHNAM 3 doSystemDump+0000034A *PATHNAM 4 protectedDumpFunction +0000002C *PATHNAM 5 j9sig_protect +0000071A *PATHNAM 6 runDumpAgent+00000356 *PATHNAM 7 triggerDumpAgents +000004AC *PATHNAM 8 fatalExit +0000008E *PATHNAM 9 Z_COMPRESSUTF8 +00000166 *PATHNAM 10 compressUTF8+00000026 *PATHNAM 11 Z_FINDCLASS +0000021E *PATHNAM 12 findClass +00000014 *PATHNAM 13 gpCheckFindClass +0000001E *PATHNAM 14 JNU_NewObjectByName +00000066 *PATHNAM 15 Java_java_lang_UNIXProcess_forkAndExec +00000516 *PATHNAM KEYWORDS ABEND0C4 forkAndExec
Local fix
N/A
Problem summary
The crash happened while application invoke Runtime.exec() as the corresponding native library code did not encode the class file name in UTF-8 format for throwing an IOException. In zOS, it was encoded in the platform default encoding (IBM-1047) as the class name string literals were not explicitly encoded to UTF-8. Another symptom of this issue is to throw IOException with unreadable message. The error messages of java.io.IOException were not displayed properly as the error messages are expected to be in the UTF-8 format by the error processing routine and it was provided in the zOS default encoding which is EBCDIC (IBM-1047).
Problem conclusion
This defect will be fixed in: 6.0.0 SR11 6.0.1 SR3 7.0.0 SR5 . The class name literals and the error messages are encoded in UTF-8 format before providing to the appropriate native functions.
Temporary fix
Comments
APAR Information
APAR number
PM64410
Reported component name
JAVA Z/OS 64
Reported component ID
620700104
Reported release
600
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-05-10
Closed date
2012-06-30
Last modified date
2013-06-20
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PM66353
Fix information
Fixed component name
JAVA Z/OS 64
Fixed component ID
620700104
Applicable component levels
R600 PSY
UP
R700 PSY
UP
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Document Information
Modified date:
09 August 2022