Native Image Committer and Community Meeting 2024-03-07

[christianwimmer]

List of all past and upcoming meetings: #3933

New and Noteworthy

• GraalVM and Truffle:
  [GR-51274] Remove the GraalVM Component Updater (gu) and the installables. #8390

• Layered native images:
  [GR-51606] Introduce a typeReached check for Class.forName. #8335
  [GR-52030] Implement stable name for Proxy type using the names of its interfaces, class loader and module #8413
  [GR-51273] Implement stable names for arbitrary method handles #8395

• Special exceptions for missing configurations:
  [GR-52314] Make MissingRegistrationReportingMode a runtime option #8473
  [GR-51476] Throw missing registration errors for array instantiation #8451

• Tracking of code that is adapted from JDK/HotSpot:
  [GR-51436] Add @BasedOnJDKFile annotation #8398
  [GR-51436] Annotate Native Images Sources with @BasedOnJDKFile #8421
  [GR-51436] Annotate more code with @BasedOnJDKFile. #8428

• Usability:
  [GR-47712] Report error if building static executable without musl libc. #8403

• Performance
  [GR-25968] Replace AMD64 long jumps with short jumps. #8515
  [GR-51330] Support per-thread suspend/resume. #8351 first steps towards thread-local handshakes

• Compatibility
  GitHub workflows for Micronaut, Quarkus, and Spring: [GR-52456] Add nightly workflow for Spring. #8510, [GR-47712] Changelog and GitHub workflow updates. #8455
  [GR-47015] Fix Proxy.isProxyClass(). #8389

• Cleanups:
  [GR-50240] Wrap HotSpotObjectConstant directly in ImageHeapConstant. #8374
  [GR-51520] Remove the old class initialization strategy. #8323

• Eliminate the last usages of IntrinsifyMethodHandleInvocationPlugin:
  [GR-47515] Use inlinebeforeanalysis method handle intrinsification for Runtime Compilations. #8346
  [GR-51895] Remove use of old method handle intrinsification. #8518

• Monitoring / tools:
  [WIP] [GR-45171] Basic JVMTI infrastructure. #8507
  [GR-48956] Update -g to include all information for profiling. Fix the problem with objcopy strip command. #8516: improves out-of-the-box support for perf
  [GR-51601] [GR-49226] [GR-49228] Replace setitimer with timer_settime. Add isHidden to JfrMethod entry. #8517
  [GR-44559] Finish ThreadMXBean implementation for Native Image. #8430
  [GR-51851] Add initial support for native memory tracking. #8349
  [GR-47109] Support JFR event ObjectAllocationSample. #8316

Deep Dive

Current status of "architecture improvement projects":

• Parse once: old code removed for 24.0
• New class initialization strategy: old code removed for 24.1
• Remove IntrinsifyMethodHandleInvocationPlugin: old code could still be removed for 24.1
• Complete shadow heap: done for now (still need to remove re-scanning of shadow heap after analysis)
• Remove "duringAnalysis" static analysis callbacks: some progress but still a lot to do
• Do not scan complete classpath before the static analysis: not started