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Fail cleanly when the registry path has no directory

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SpotBugs flagged a null passed to Files.createTempFile: the null check guarded
only createDirectories, while the temporary file creation would still have
dereferenced it. The path is resolved absolute so this is practically
unreachable, but bailing out with a log line is cheaper than the latent NPE.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Hpa6bjie5qkeNG62y6FmXm
This commit is contained in:
Claude
2026-09-07 08:04:38 +00:00
parent 0d740374e2
commit 880ae5b0f0
1 changed files with 10 additions and 4 deletions
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src/main/java/kst4contest/controller/OperatorProfileStore.java
+10 -4
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@@ -348,11 +348,17 @@ public class OperatorProfileStore {
Path targetPath = Path.of(registryFilePath).toAbsolutePath();
Path parentDirectory = targetPath.getParent();
try {
if (parentDirectory != null) {
Files.createDirectories(parentDirectory);
}
if (parentDirectory == null) {
LOGGER.log(Level.SEVERE,
"The operator profile registry path has no directory: {0}", registryFilePath);
return false;
}
try {
Files.createDirectories(parentDirectory);
// The temporary file has to live next to the target so the final move can be
// atomic; both must be on the same file system.
Path temporaryPath = Files.createTempFile(
parentDirectory, PROFILES_REGISTRY_FILE, ".tmp");