Add Exception message to Xdump stack agent output

When Xdump:stack is used to dump stack trace filtered on an exception,
this change along with the primary exception message, displays
additional detail about the exception if any. This is similar to how
javacore displays additional detail about an exception in 1TISIGINFO
tag.

Fixes: #8435
Signed-off-by: Kabir Islam <kaislam1@in.ibm.com>

runtime/nls/dump/j9dmp.nls

@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2000, 2021 IBM Corp. and others
+# Copyright (c) 2000, 2022 IBM Corp. and others
 #
 # This program and the accompanying materials are made available under
 # the terms of the Eclipse Public License 2.0 which accompanies this
@@ -598,4 +598,18 @@ J9NLS_DMP_JIT_TRACE_IL_CRASHED_THREAD.system_action=The JVM continues.
 J9NLS_DMP_JIT_TRACE_IL_CRASHED_THREAD.user_response=Diagnostic information, provide this information to your service representative.
 J9NLS_DMP_JIT_TRACE_IL_CRASHED_THREAD.link=
 
-# END NON-TRANSLATABLE
+# END NON-TRANSLATABLE
+
+J9NLS_DMP_PROCESSING_DETAILED_EVENT_TIME=Processing dump event \"%1$s\", detail \"%3$.*2$s\", exception \"%5$.*4$s\" at %6$s - please wait.
+# START NON-TRANSLATABLE
+J9NLS_DMP_PROCESSING_DETAILED_EVENT_TIME.explanation=A dump event has occurred and is being handled.
+J9NLS_DMP_PROCESSING_DETAILED_EVENT_TIME.system_action=The JVM generates dumps as configured for the event by the -Xdump option.
+J9NLS_DMP_PROCESSING_DETAILED_EVENT_TIME.user_response=No response is required.
+J9NLS_DMP_PROCESSING_DETAILED_EVENT_TIME.sample_input_1=throw
+J9NLS_DMP_PROCESSING_DETAILED_EVENT_TIME.sample_input_2=9
+J9NLS_DMP_PROCESSING_DETAILED_EVENT_TIME.sample_input_3=#00000000
+J9NLS_DMP_PROCESSING_DETAILED_EVENT_TIME.sample_input_4=12
+J9NLS_DMP_PROCESSING_DETAILED_EVENT_TIME.sample_input_5=No such file
+J9NLS_DMP_PROCESSING_DETAILED_EVENT_TIME.sample_input_6=20220919.114434
+J9NLS_DMP_PROCESSING_DETAILED_EVENT_TIME.link=dita:///diag/tools/dump_agents.dita
+# END NON-TRANSLATABLE

runtime/rasdump/trigger.c

@@ -1002,8 +1002,34 @@ triggerDumpAgents(struct J9JavaVM *vm, struct J9VMThread *self, UDATA eventFlags
 								OMRPORT_ACCESS_FROM_J9PORT(PORTLIB);
 								char dateStamp[64];
 								omrstr_ftime_ex(dateStamp, sizeof(dateStamp), "%Y/%m/%d %H:%M:%S", now, OMRSTR_FTIME_FLAG_LOCAL);
-								j9nls_printf(PORTLIB, J9NLS_INFO | J9NLS_STDERR | J9NLS_VITAL, J9NLS_DMP_PROCESSING_EVENT_TIME, mapDumpEvent(eventFlags), detailLength, detailData, dateStamp);
-								printed = 1;
+
+								/* If there are more details about the event, print them.
+								 * During abort event detailData is empty string - skip the abort event.
+								 */
+								if (('\0' != *detailData) && (NULL != eventData->exceptionRef) && (NULL != *eventData->exceptionRef)) {
+									j9object_t emessage = J9VMJAVALANGTHROWABLE_DETAILMESSAGE(self, *eventData->exceptionRef);
+									if (NULL != emessage) {
+										char stackBuffer[256];
+										UDATA extraDetailLength = 0;
+										char *extraDetail = self->javaVM->internalVMFunctions->copyStringToUTF8WithMemAlloc(self, emessage,
+												J9_STR_NULL_TERMINATE_RESULT, "", 0, stackBuffer,
+												sizeof(stackBuffer), &extraDetailLength);
+										if (NULL != extraDetail) {
+											j9nls_printf(PORTLIB, J9NLS_INFO | J9NLS_STDERR | J9NLS_VITAL,
+													J9NLS_DMP_PROCESSING_DETAILED_EVENT_TIME, mapDumpEvent(eventFlags),
+													detailLength, detailData, extraDetailLength, extraDetail, dateStamp);
+											if (stackBuffer != extraDetail) {
+												j9mem_free_memory(extraDetail);
+											}
+											printed = 1;
+										}
+									}
+								}
+								if (0 == printed) {
+									j9nls_printf(PORTLIB, J9NLS_INFO | J9NLS_STDERR | J9NLS_VITAL, J9NLS_DMP_PROCESSING_EVENT_TIME,
+											mapDumpEvent(eventFlags), detailLength, detailData, dateStamp);
+									printed = 1;
+								}
 							}
 						}