Support experimental building with OpenJDK 21
Use EXPERIMENTAL_USE_OPENJDK21_TOOLCHAIN=true to build with OpenJDK 21
while still targeting java language version 17.
Bug: 313924276
Test: m EXPERIMENTAL_USE_OPENJDK21_TOOLCHAIN=true
Change-Id: Idc892bb7519e597f1e280ca0765c1a281bb29955
diff --git a/java/config/config.go b/java/config/config.go
index 83c27d3..0098130 100644
--- a/java/config/config.go
+++ b/java/config/config.go
@@ -133,7 +133,12 @@
if override := ctx.Config().Getenv("OVERRIDE_JLINK_VERSION_NUMBER"); override != "" {
return override
}
- return "17"
+ switch ctx.Config().Getenv("EXPERIMENTAL_USE_OPENJDK21_TOOLCHAIN") {
+ case "true":
+ return "21"
+ default:
+ return "17"
+ }
})
pctx.SourcePathVariable("JavaToolchain", "${JavaHome}/bin")