This is the implementation of the draft [JEP: Ahead-of-time Command Line Ergonomics](https://bugs.openjdk.org/browse/JDK-8350022)
- Implemented new flag `AOTCacheOutput`, which can be used to create an AOT cache using the "one-command workflow" - Added processing of the `AOT_TOOL_OPTIONS` environment variable that can supply extra VM options when creating an AOT cache - Added `%p` substitution for `AOTCache`, `AOTCacheOutput`, and `AOTConfiguration` options Please see the [JEP](https://bugs.openjdk.org/browse/JDK-8350022) and [CSR](https://bugs.openjdk.org/browse/JDK-8356010) for detailed specification. Examples: # Create an AOT cache with a single command: $ java -cp HelloWorld.jar -XX:AOTMode=record -XX:AOTCacheOutput=foo.aot HelloWorld Hello World Temporary AOTConfiguration recorded: foo.aot.config Launching child process /usr/bin/java to assemble AOT cache foo.aot using configuration foo.aot.config Picked up JAVA_TOOL_OPTIONS: -Djava.class.path=HelloWorld.jar -XX:AOTCacheOutput=foo.aot -XX:AOTConfiguration=foo.aot.config -XX:AOTMode=create Reading AOTConfiguration foo.aot.config and writing AOTCache foo.aot AOTCache creation is complete: foo.aot 10240000 bytes # Create logging file for the AOT cache assembly phase $ export AOT_TOOL_COMMAND=-Xlog:cds:file=log.txt $ java -cp HelloWorld.jar -XX:AOTMode=record -XX:AOTCacheOutput=foo.aot HelloWorld Note: the child process is launched with Java API because the HotSpot native APIs are not sufficient (no way to set env vars for child process). ------------- Commit messages: - Remove %t restriction - Added %p substitution; clean up - Merge branch 'master' into 8355798-implement-leyden-ergo-jep-8350022 - fixed typo - added comment that was removed in previous commit - Refactored code to enfore the order of argument parsing - 8355798: Implement JEP-JDK-8350022: Ahead-of-time Command Line Ergonomics Changes: https://git.openjdk.org/jdk/pull/24942/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24942&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8355798 Stats: 1776 lines in 17 files changed: 1298 ins; 439 del; 39 mod Patch: https://git.openjdk.org/jdk/pull/24942.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/24942/head:pull/24942 PR: https://git.openjdk.org/jdk/pull/24942
