Prevent potential NullPointerExceptions #6369
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stweil
reviewed
Jan 16, 2025
| @@ -538,12 +538,14 @@ public void show() { | |||
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| private void restoreSelection(String rowKey, TreeNode parentNode) { | |||
| for (TreeNode childNode : parentNode.getChildren()) { | |||
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Can parentNode have children which are Null?
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Potentially, yes, because children is just a list of DefaultTreeNode, itself an implementation of the interface TreeNode, and instances of every non-primitive type in Java can be null. Whether this can actually be the case in the Kitodo context is a different story, but shouldn't be the deciding factor for adding null checks, IMHO.
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Prevent some potential
NullPointerExceptions reported by CodeQL by adding corresponding null checks.