When an exception handler for an OutOfMemoryError uses string concatenation to compose an exception message, the invoke dynamic string format implementation may itself exhaust memory, preventing the exception from being handled. Explicit use of String.concat() call can improve exception handling.
Writing a test of the exact failure condition has proved challenging due to the unpredictable state of memory when OOME occurs. The replacement of "+" with String.concat() is simple and direct. ------------- Commit messages: - More discriptive comment - When handling an OutOfMemoryError due to off-heap allocation failure Changes: https://git.openjdk.org/jdk/pull/17522/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17522&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8324657 Stats: 14 lines in 1 file changed: 7 ins; 2 del; 5 mod Patch: https://git.openjdk.org/jdk/pull/17522.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/17522/head:pull/17522 PR: https://git.openjdk.org/jdk/pull/17522
