onitake opened a new pull request #3546: [FIX] Rethrow takeVMSnapshot() exception URL: https://github.com/apache/cloudstack/pull/3546 ## Description <!--- Describe your changes in detail --> This patch changes the behaviour of `VMSnapshotManagerImpl.VMSnapshot orchestrateCreateVMSnapshot(Long vmId, Long vmSnapshotId, Boolean quiescevm)` to rethrow the exception when `takeVMSnapshot()` fails, instead of returning null. If null is returned, this will lead to a NullPointerException in `VMSnapshotManagerImpl.orchestrateCreateVMSnapshot(VmWorkCreateVMSnapshot work)` in the `snapshot.getId()` call, and causes an incomplete snapshot entry to remain in the database. <!-- For new features, provide link to FS, dev ML discussion etc. --> <!-- In case of bug fix, the expected and actual behaviours, steps to reproduce. --> <!-- When "Fixes: #<id>" is specified, the issue/PR will automatically be closed when this PR gets merged --> <!-- For addressing multiple issues/PRs, use multiple "Fixes: #<id>" --> <!-- Fixes: # --> Fixes: #3518 See there for more details. ## Types of changes <!--- What types of changes does your code introduce? Put an `x` in all the boxes that apply: --> - [ ] Breaking change (fix or feature that would cause existing functionality to change) - [ ] New feature (non-breaking change which adds functionality) - [x] Bug fix (non-breaking change which fixes an issue) - [ ] Enhancement (improves an existing feature and functionality) - [ ] Cleanup (Code refactoring and cleanup, that may add test cases) ## Screenshots (if appropriate): ## How Has This Been Tested? <!-- Please describe in detail how you tested your changes. --> <!-- Include details of your testing environment, and the tests you ran to --> <!-- see how your change affects other areas of the code, etc. --> This change has not been tested yet. At this point, it is unknown if it will cause unexpected side effects. <!-- Please read the [CONTRIBUTING](https://github.com/apache/cloudstack/blob/master/CONTRIBUTING.md) document -->
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