Adding option to include sources only for Java 11 builds

Bug: 207852002
Test: m
Test: EXPERIMENTAL_TARGET_JAVA_VERSION_11=true m
Change-Id: I554a79798ea7f1dd4a96b09f761090f83a009cb4

android/config.go

@@ -658,6 +658,10 @@ func (c *config) IsEnvFalse(key string) bool {
 	return value == "0" || value == "n" || value == "no" || value == "off" || value == "false"
 }
 
+func (c *config) TargetsJava11() bool {
+	return c.IsEnvTrue("EXPERIMENTAL_TARGET_JAVA_VERSION_11")
+}
+
 // EnvDeps returns the environment variables this build depends on. The first
 // call to this function blocks future reads from the environment.
 func (c *config) EnvDeps() map[string]string {

java/base.go

@@ -122,6 +122,14 @@ type CommonProperties struct {
 		Javacflags []string
 	}
 
+	Openjdk11 struct {
+		// List of source files that should only be used when passing -source 1.9 or higher
+		Srcs []string `android:"path"`
+
+		// List of javac flags that should only be used when passing -source 1.9 or higher
+		Javacflags []string
+	}
+
 	// When compiling language level 9+ .java code in packages that are part of
 	// a system module, patch_module names the module that your sources and
 	// dependencies should be patched into. The Android runtime currently
@@ -959,6 +967,10 @@ func (j *Module) compile(ctx android.ModuleContext, aaptSrcJar android.Path) {
 	if flags.javaVersion.usesJavaModules() {
 		j.properties.Srcs = append(j.properties.Srcs, j.properties.Openjdk9.Srcs...)
 	}
+	if ctx.Config().TargetsJava11() {
+		j.properties.Srcs = append(j.properties.Srcs, j.properties.Openjdk11.Srcs...)
+	}
+
 	srcFiles := android.PathsForModuleSrcExcludes(ctx, j.properties.Srcs, j.properties.Exclude_srcs)
 	if hasSrcExt(srcFiles.Strings(), ".proto") {
 		flags = protoFlags(ctx, &j.properties, &j.protoProperties, flags)

java/java.go

@@ -449,7 +449,7 @@ func getJavaVersion(ctx android.ModuleContext, javaVersion string, sdkContext an
 		return normalizeJavaVersion(ctx, javaVersion)
 	} else if ctx.Device() {
 		return defaultJavaLanguageVersion(ctx, sdkContext.SdkVersion(ctx))
-	} else if ctx.Config().IsEnvTrue("EXPERIMENTAL_TARGET_JAVA_VERSION_11") {
+	} else if ctx.Config().TargetsJava11() {
 		// Temporary experimental flag to be able to try and build with
 		// java version 11 options.  The flag, if used, just sets Java
 		// 11 as the default version, leaving any components that

java/sdk.go

@@ -55,7 +55,7 @@ func defaultJavaLanguageVersion(ctx android.EarlyModuleContext, s android.SdkSpe
 		return JAVA_VERSION_7
 	} else if sdk.FinalOrFutureInt() <= 29 {
 		return JAVA_VERSION_8
-	} else if ctx.Config().IsEnvTrue("EXPERIMENTAL_TARGET_JAVA_VERSION_11") {
+	} else if ctx.Config().TargetsJava11() {
 		// Temporary experimental flag to be able to try and build with
 		// java version 11 options. The flag, if used, just sets Java
 		// 11 as the default version, leaving any components that

java/sdk_library.go

@@ -1392,6 +1392,10 @@ func (module *SdkLibrary) createStubsLibrary(mctx android.DefaultableHookContext
 			Srcs       []string
 			Javacflags []string
 		}
+		Openjdk11 struct {
+			Srcs       []string
+			Javacflags []string
+		}
 		Dist struct {
 			Targets []string
 			Dest    *string
@@ -1418,6 +1422,8 @@ func (module *SdkLibrary) createStubsLibrary(mctx android.DefaultableHookContext
 	}
 	props.Openjdk9.Srcs = module.properties.Openjdk9.Srcs
 	props.Openjdk9.Javacflags = module.properties.Openjdk9.Javacflags
+	props.Openjdk11.Srcs = module.properties.Openjdk11.Srcs
+	props.Openjdk11.Javacflags = module.properties.Openjdk11.Javacflags
 	// We compile the stubs for 1.8 in line with the main android.jar stubs, and potential
 	// interop with older developer tools that don't support 1.9.
 	props.Java_version = proptools.StringPtr("1.8")