IJ03440: ASSERTION FAILURE DURING CLASS CREATION

APAR status

• Closed as program error.

Error description

• Error Message: Assert     * ** ASSERTION FAILED ** at
  ../omr/port/common/j9memtag.c:141: ((memoryCorruptionDetected))
  .
  Stack Trace: 0x090000001b093a18
  {libj9prt28.so}{genSystemCoreUsingGencore}
  <OSB>0x10023adf0a0<CSB>
  0x090000001b092f14 {libj9prt28.so}{j9dump_create}
  <OSB>0x10023adfd60<CSB>
  0x090000001b0d7f54 {libj9dmp28.so}{doSystemDump}
  <OSB>0x10023ae0250<CSB>
  0x090000001b0deff8 {libj9dmp28.so}{protectedDumpFunction}
  <OSB>0x10023ae0300<CSB>
  0x090000001b05b020 {libj9prt28.so}{j9sig_protect}
  <OSB>0x10023ae0370<CSB>
  0x090000001b0dece0 {libj9dmp28.so}{runDumpAgent}
  <OSB>0x10023ae0720<CSB>
  0x090000001b110dfc {libj9dmp28.so}{triggerDumpAgents}
  <OSB>0x10023ae0c70<CSB>
  0x090000001b141d44
  {libj9trc28.so}{doTriggerActionAssertDumpEvent}
  <OSB>0x10023ae10a0<CSB>
  0x090000001b15dcb8 {libj9trc28.so}{triggerHit}
  <OSB>0x10023ae1110<CSB>
  0x090000001b1505cc {libj9trc28.so}{logTracePoint}
  <OSB>0x10023ae11c0<CSB>
  0x090000001b150f74 {libj9trc28.so}{doTracePoint}
  <OSB>0x10023ae1380<CSB>
  0x090000001b144b7c {libj9trc28.so}{javaTrace}
  <OSB>0x10023ae1450<CSB>
  0x090000001b07ee44 {libj9prt28.so}{unwrapBlockAndCheckTags}
  <OSB>0x10023ae14e0<CSB>
  0x090000001b07f328 {libj9prt28.so}{j9mem_free_memory}
  <OSB>0x10023ae1570<CSB>
  0x090000001b761410 {libj9dyn28.so}{hashTableGrowSpaceOpt}
  <OSB>0x10023ae1620<CSB>
  0x090000001b75ed00 {libj9dyn28.so}{hashTableAdd}
  <OSB>0x10023ae1710<CSB>
  0x090000001b75da78 {libj9dyn28.so}{romClassHashTableAdd}
  <OSB>0x10023ae17e0<CSB>
  0x090000001b75b564 {libj9dyn28.so}{internalDefineClass}
  <OSB>0x10023ae1860<CSB>
  0x0900000021b53c4c {libjclse7b_28.so}{defineClassCommon}
  <OSB>0x10023ae19d0<CSB>
  0x0900000021b5350c
  {libjclse7b_28.so}{Java_java_lang_ClassLoader_defineClassImpl}
  <OSB>0x10023ae1b30<CSB>
  .
  

Local fix

Problem summary

• An internal JVM table was not being correctly protected by a
  lock.
  

Problem conclusion

• Appropriate locking has been added to the table.
  .
  This APAR will be fixed in the following Java Releases:
     8    SR5 FP10  (8.0.5.10)
  .
  Contact your IBM Product's Service Team for these Service
  Refreshes and Fix Packs.
  For those running stand-alone, information about the available
  Service Refreshes and Fix Packs can be found at:
             https://www.ibm.com/developerworks/java/jdk/
  

Temporary fix

Comments

APAR Information

• 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

  J9 COMMON CODE

• Fixed component ID

  620700127

Applicable component levels

• R270 PSY

     UP