RFR: 8375549: ConcurrentModificationException if jdk.crypto.disabledAlgorithms has multiple entries with known oid

Valerie Peng valeriep at openjdk.org
Tue Jan 20 23:06:57 UTC 2026


Inside the CryptoAlgorithmConstraints constructor, there is a loop looking up the known oid. Iterating over the "disabledServices" set and inserting the found oid(s) into it leads to ConcurrentModificationException when the set contains multiple entries. The proposed fix is to iterating over the array converted from the set which is also used for debugging output instead of the "disabledServices" set itself.

Thanks,
Valerie

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Commit messages:
 - 8375549: ConcurrentModificationException if jdk.crypto.disabledAlgorithms has multiple entries with known oid

Changes: https://git.openjdk.org/jdk/pull/29335/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29335&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8375549
  Stats: 53 lines in 2 files changed: 50 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/29335.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29335/head:pull/29335

PR: https://git.openjdk.org/jdk/pull/29335


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