This is a simple cleanup RFE to get rid of old-style C casts in relation to JavaThread.
In many cases involving NULL/nullptr the cast could just be dropped. Sometimes a static cast is needed to disambiguate overloads. A couple of reinterpret_cast are needed when doing int/ptr conversion. static_cast is used for void* conversion. The other changes should be self explanatory. The changes in src/hotspot/os_cpu/bsd_aarch64/javaThread_bsd_aarch64.cpp src/hotspot/os_cpu/windows_aarch64/javaThread_windows_aarch64.cpp are a bit more extensive. That code was using an alias for `this` which is completely unnecessary (and the alias creation was using the cast). This could be factored out if thought necessary. I grep'd as best I could for the old C-style casts but can't be certain I got them all. Testing: - all builds in our tiers1-5 - local linux x64 product, slowdebug and fastdebug - GHA (TBD) - Sanity testing tiers 1-3 Thanks. ------------- Commit messages: - 8298241: Replace C-style casts with JavaThread::cast Changes: https://git.openjdk.org/jdk/pull/11682/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=11682&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8298241 Stats: 44 lines in 19 files changed: 0 ins; 11 del; 33 mod Patch: https://git.openjdk.org/jdk/pull/11682.diff Fetch: git fetch https://git.openjdk.org/jdk pull/11682/head:pull/11682 PR: https://git.openjdk.org/jdk/pull/11682
