Queueable class throws Uncommitted Work Pending error in one test, but not others
11090
Uncommitted work pending in unit test with trigger and queueable callout
124651
Using sp_getapplock to implement a queue. Is it correct? Is there a better way?
101436
How can I identify an anonymous inner class in a NotSerializableException
48407
Getting CalloutException when testing Batchable class with Callouts and HttpCalloutMock
124287
Connection Pool returns Same Exception Instance to Two Threads Using the Same Bad Connection String?
76570
Test Class Issue with UNKNOWN_EXCEPTION, portal account owner must have a role
11980
How should I unit test multithreaded code?
106257
What are the possible problems caused by adding elements to unsynchronized ArrayList's object by multiple threads simultaneously?
155782
Why does Java have an "unreachable statement" compiler error?
117176
Is using std::deque or std::priority_queue thread-safe?
60154
How do I address unchecked cast warnings?
151381
moq - how to verify method has not been called if the class swallows exceptions
109442
How to deal with cross-thread access exceptions?
50076
How to test that no exception is thrown?
86579
Why does an IllegalThreadStateException occur when Thread.start is called again
38152
test class with Batch and Callout
111065
How to avoid race condition when using a lock-file to avoid two instances of a script running simultaneously?