Auto-response in case somebody has the same problem: The example code is wrong:
The full code of traverseSnapshotInTree:
1 private static ManagedObjectReference traverseSnapshotInTree(List<VirtualMachineSnapshotTree> snapTree, String findName, boolean print) {
3 ManagedObjectReference snapmor = null;
4 if (snapTree == null) {
5 return snapmor;
6 }
7 for (VirtualMachineSnapshotTree node : snapTree) {
8 if (print) {
9 System.out.println("Snapshot Name : " + node.getName());
10 }
11 if (findName != null && node.getName().equalsIgnoreCase(findName)) {
12 return node.getSnapshot();
13 } else {
14 List<VirtualMachineSnapshotTree> listvmst = node.getChildSnapshotList();
15 List<VirtualMachineSnapshotTree> childTree = listvmst;
16 snapmor = traverseSnapshotInTree(childTree, findName, print);
17 }
18 }
19 return snapmor;
20 }
If your snapshots tree is as this:
- Snapshot 1
- Snapshot 1.1
- Snapshot 2
and you are looking for Snapshot 1.1 you will find it at line 12 but when back at the calling level at line 7 you will go on looking for it.
As the next branch of the tree is Snapshot 2 you will not find it, and so will try to explore sub tree of Snapshot 2: This will reset snapmor to null at lines 3 + 19 in the sub level.
Correction: Enclose lines 8 to 17 with: if (snapmor != null)
