APAR status
Closed as program error.
Error description
Error Message: N/A . Stack Trace: N/A . Improve startup performance for applications that load many packages concurrently.
Local fix
N/A
Problem summary
java.lang.Package implementation caches defined packages in a HashMap, which is queried during the construction of a new Package object. Hashmap accesses are synchronized, which may become a bottleneck when scaling across multiple threads.
Problem conclusion
The java.lang.Package implementation has been updated to use a ConcurrentHashMap instead, which may alleviate such multi-threaded contention. . This APAR will be fixed in the following Releases: . IBM SDK, Java Technology Edition 8 SR8 FP15 (8.0.8.15) . Contact your IBM Product's Service Team for these Service Refreshes and Fix Packs. For those running stand-alone, information about the available maintenance can be found at: https://www.ibm.com/support/pages/java-sdk
Temporary fix
Comments
APAR Information
APAR number
IJ48844
Reported component name
JAVA CLASS LIBS
Reported component ID
620700130
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2023-10-10
Closed date
2023-10-10
Last modified date
2023-10-10
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
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSNVBF","label":"Runtimes for Java Technology"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.0","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]
Document Information
Modified date:
11 October 2023