> Constructing indexed var handles using the `MemoryLayout` API produces > `VarHandle` which do not check the input indices for out-of-bounds conditions. > While this can never result in a VM crash (after all the memory segment will > protect against "true" OOB access), it is still possible for an access > expression to refer to parts of a segment that are logically unrelated. > > This patch adds a "logical" bound check to all indexed var handles generated > using the layout API. > Benchmarks are not affected by the check. Users are still able to create > custom "unchecked" var handles, using the combinator API in `MethodHandles`.
Maurizio Cimadamore has updated the pull request incrementally with one additional commit since the last revision: Tweak javadoc for ValueLayout::arrayElementVarHandle ------------- Changes: - all: https://git.openjdk.java.net/jdk/pull/8868/files - new: https://git.openjdk.java.net/jdk/pull/8868/files/453392ae..a682cc03 Webrevs: - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=8868&range=01 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=8868&range=00-01 Stats: 17 lines in 1 file changed: 16 ins; 0 del; 1 mod Patch: https://git.openjdk.java.net/jdk/pull/8868.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/8868/head:pull/8868 PR: https://git.openjdk.java.net/jdk/pull/8868
