cloud-fan commented on code in PR #57954:
URL: https://github.com/apache/spark/pull/57954#discussion_r3809838360
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core/src/main/java/org/apache/spark/security/CredentialProviderLoader.java:
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@@ -256,25 +261,23 @@ public static Set<String> discoverAllSchemes() {
* <p>
* This method iterates over all providers that have been initialized via
* {@link CredentialProvider#init(Map)} and calls {@link
CredentialProvider#close()}
- * on each. If any provider's {@code close()} throws, the exception is
suppressed
- * and attached to the first exception encountered. If at least one
exception occurred,
- * it is thrown after all providers have been attempted.
+ * on each. The first exception is retained, later exceptions are suppressed
onto it, and the
+ * first exception is rethrown after all providers have been attempted.
* <p>
- * After this method returns (normally or exceptionally), the initialization
tracking
- * is cleared, but the cached provider list is retained. This means
providers would be
- * re-initialized on the next {@link #providerFor} call (which is not
expected after
- * shutdown).
+ * After shutdown begins, subsequent {@link #providerFor} calls fail rather
than
+ * re-initializing a cached provider whose resources have already been
released.
* <p>
* <b>Contract:</b> {@code close()} implementations must not call back into
* {@code CredentialProviderLoader} methods (e.g., {@code providerFor}).
*
* @throws Exception if one or more providers threw during close
*/
- public static void closeAll() throws Exception {
+ public void closeAll() throws Exception {
List<CredentialProvider> toClose;
- synchronized (CredentialProviderLoader.class) {
+ synchronized (this) {
// Copy and clear under the lock to prevent double-close if closeAll()
is called
// again concurrently, and to avoid ConcurrentModificationException.
+ providersClosed = true;
Review Comment:
cc @sarutak
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