Merge pull request #4221 from nscuro/issue-4220

Fix unintended manual flushing mode due to DataNucleus `ExecutionContext` pooling

src/main/resources/application.properties

@@ -146,6 +146,13 @@ alpine.database.pool.max.lifetime=600000
 # DO NOT CHANGE UNLESS THERE IS A GOOD REASON TO.
 # alpine.datanucleus.cache.level2.type=
 
+# Required
+# Controls the maximum number of ExecutionContext objects that are pooled by DataNucleus.
+# The default defined by DataNucleus is 20. However, since Dependency-Track occasionally
+# tweaks ExecutionContexts (e.g. to disable auto-flushing for insert-heavy tasks),
+# they are not safe for reuse. We thus disable EC pooling completely.
+alpine.datanucleus.executioncontext.maxidle=0
+
 # Required
 # Specifies the number of bcrypt rounds to use when hashing a users password.
 # The higher the number the more secure the password, at the expense of