Under what circumstances are C++ destructors not going to be called?

Are there any other circumstances where they[destructors] will not be called? Long jumps: these interfere with the natural stack unwinding process and often lead to undefined behavior in C++. Premature exits (you already pointed these out, though it’s worth noting that throwing while already stack unwinding as a result of an exception being thrown leads … Read more

Print an error message without printing a traceback and close the program when a condition is not met

You can turn off the traceback by limiting its depth. Python 2.x import sys sys.tracebacklimit = 0 Python 3.x In Python 3.5.2 and 3.6.1, setting tracebacklimit to 0 does not seem to have the intended effect. This is a known bug. Note that -1 doesn’t work either. Setting it to None does however seem to … Read more

connect failed: ECONNREFUSED

To access your PC localhost from Android emulator, use 10.0.2.2 instead of 127.0.0.1. localhost or 127.0.0.1 refers to the emulated device itself, not the host the emulator is running on. Reference: https://developer.android.com/studio/run/emulator-networking#networkaddresses For Genymotion use: 10.0.3.2 instead of 10.0.2.2

JUnit: Possible to ‘expect’ a wrapped exception?

As of JUnit 4.11 you can use the ExpectedException rule’s expectCause() method: import static org.hamcrest.CoreMatchers.*; // … @Rule public ExpectedException expectedException = ExpectedException.none(); @Test public void throwsNestedException() throws Exception { expectedException.expectCause(isA(SomeNestedException.class)); throw new ParentException(“foo”, new SomeNestedException(“bar”)); }

ThreeTen-Backport error on Android – ZoneRulesException: No time-zone data files registered

For Android project you should use implementation ‘com.jakewharton.threetenabp:threetenabp:1.0.3’ Make sure you call AndroidThreeTen.init(this); before using the classes from the library. This will read the time zones data (included in the library). You can initialize the library in your Application class in the onCreate method just like it is recommended in the README.

Asp.net mvc override OnException in base controller keeps propagating to Application_Error

The following should work: protected override void OnException(ExceptionContext filterContext) { if (filterContext.ExceptionHandled) { return; } filterContext.Result = new ViewResult { ViewName = “~/Views/Shared/Error.aspx” }; filterContext.ExceptionHandled = true; } Also make sure that no exception is thrown in this method or it will propagate to Application_Error.

Unable to run JUnit test with PowerMockRunner

This is a bug that occurs when you use JUnit 4.12 and PowerMock < 1.6.1. The problem is solved in PowerMock 1.6.1. Please update your dependencies accordingly testCompile ‘junit:junit:4.12’, ‘org.powermock:powermock-core:1.6.1’, ‘org.powermock:powermock-module-junit4:1.6.1’, ‘org.powermock:powermock-api-mockito:1.6.1’ If you cannot upgrade PowerMock then you can use JUnit 4.11. testCompile ‘junit:junit:4.11’, ‘org.powermock:powermock-core:1.5.6’, ‘org.powermock:powermock-module-junit4:1.5.6’, ‘org.powermock:powermock-api-mockito:1.5.6’ Could you please add further lines of … Read more