SR-D71041 · Issue 537897
Default compiler pool size increased
Resolved in Pega Version 8.4.1
An issue was seen where the nodes were continuously terminating and Stream service was not started. Error messages indicated a "WARN - Long running request detected for requestor", and that tasks were waiting for the generic object pool. Analysis showed that it was possible for a deadlock to form during the startup of the system or during the first few rule executions and compilations when there were more than five rules trying to compile. Once the variable LibraryMetadata.TypeEnvironment.resolver (ClassLoader) is initialized, the problem would resolve. To prevent the deadlock, the default compiler pool size has been increased from 5 to 10.
SR-D71145 · Issue 536370
PropertySet will iterate over changeList map copy to resolve CME
Resolved in Pega Version 8.4.1
An empty menu was seen intermittently when handling incoming email, and a ConcurrentModificationException error was logged. Investigation showed that a step scope changeList map used in the handleChaining method was sometimes modified by another process while the first one was iterating over it. To resolve this, PropertySet will receive copies of the change list map from clipboard pages instead of the original map.
SR-D74534 · Issue 538946
Decision table and tree obey allow missing properties checkbox
Resolved in Pega Version 8.4.1
Calling the decision table/tree inside another decision table/tree which has a missing property was throwing an error even though the "AllowMissingProperties" checkbox was enabled in the caller activity. Analysis showed that the setting for AllowMissingProperties did not carry into any subsequent DecisionTree/DecisionTable calls from the top DecisionTree/DecisionTable, and this has been resolved by modifying the decision table and decision tree obtain value functions to pass AllowMissingProperties.
SR-D84099 · Issue 547826
Atmosphere library updated
Resolved in Pega Version 8.4.1
Multiple setAttribute exceptions were logged related to the Atmosphere component, indicating "The request object has been recycled and is no longer associated with this facade." Investigation showed that since the request object was destroyed, an illegalstateexception was thrown. To resolve this, the Atmosphere library has been updated to version 2.4.5.7 which contains the fix for this error.
SR-D84122 · Issue 547968
Added min INT comparison for BrowseByKeys
Resolved in Pega Version 8.4.1
Running the dataset with the Browse option worked as expected, but running it using BrowseByKeys operation and giving a negative value caused results to not be populated. To resolve this, a minimum INT value comparison has been added.
SR-D84876 · Issue 547691
Performance improvement for Oracle 12c queries
Resolved in Pega Version 8.4.1
In order to compensate for a known issue with Oracle 12c that can cause repeated queries at certain times to cause database contention, Oracle pre/post processing steps have been added to improve performance in this environment.
SR-D84880 · Issue 546892
Null check added to resolve addmapcasetomap error
Resolved in Pega Version 8.4.1
Using a createcase flow shape to create child cases by looping on a page list on the parent case resulted in pzaddmapcasetomap throwing an exception related to the activity pzLoadCaseHierarchyWrapper in step 5. This was traced to a page being removed after the list of pages was received in findPageByHandle, and has been resolved by adding a null check.
SR-D85653 · Issue 548601
Repaired Tracer use with Google Chrome
Resolved in Pega Version 8.4.1
After running Tracer while using Google Chrome, closing it and trying to run another resulted in an error indicating "Cannot Launch multiple tracer sessions for a requestor". This was identified as a bug with Google Chrome Versions greater than 70 and was caused by Chrome deprecating the use of sync XHR on page dismissal, and has been resolved by modifying the system to use a beacon API instead.
SR-D87093 · Issue 548146
Compilation logic error corrected
Resolved in Pega Version 8.4.1
A compilation failure on upgraded systems using the JDK 11 compilation of libraries that include Pega 7 functions that have INCLUDE statements that are not supported in JDK 11 was traced to a logic error added when enhancing debug logging. This has been corrected.
SR-D90051 · Issue 549494
Repaired Tracer use with Google Chrome
Resolved in Pega Version 8.4.1
After running Tracer while using Google Chrome, closing it and trying to run another resulted in an error indicating "Cannot Launch multiple tracer sessions for a requestor". This was identified as a bug with Google Chrome Versions greater than 70 and was caused by Chrome deprecating the use of sync XHR on page dismissal, and has been resolved by modifying the system to use a beacon API instead.