APAR status
Closed as program error.
Error description
Local fix
N/A
Problem summary
The Health Center requires the JIT sampling thread to be active in order to produce method profiles. Up until Java 6 SR8, the JIT disables the sampling thread under some circumstances that puts the JIT into the so called "Full Speed Debug" mode. Examples of such cases include the use of debuggers (such as JDWP) or monitoring tools (such as Wily Introscope or Mercury). In these cases Health Center was not able show any method profiling information. Starting with Java 6 SR8 the JIT sampling thread will no longer be disabled in Full Speed Debug mode.
Problem conclusion
JIT sampling thread not disabled in Full Speed Debug Mode This new function will be available in: 6.0.0 SR8
Temporary fix
N/A
Comments
APAR Information
APAR number
IZ74536
Reported component name
JAVA CLASS LIBS
Reported component ID
620700130
Reported release
600
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2010-04-13
Closed date
2010-04-13
Last modified date
2010-07-29
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
JAVA CLASS LIBS
Fixed component ID
620700130
Applicable component levels
R600 PSY
UP
[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSCVQ3Y","label":"Java Class Libraries"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"6.0","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
29 July 2010