Add jni_libs to host java binaries

Add a property to support dependencies on JNI libraries for host
java binaries.

Fixes: 170389375
Test: TestBinary
Change-Id: Ieeca3c3997615f0b17ae1f058b94e6c9ba929cab

java/java.go

@@ -2432,6 +2432,10 @@ type binaryProperties struct {
 
 	// Name of the class containing main to be inserted into the manifest as Main-Class.
 	Main_class *string
+
+	// Names of modules containing JNI libraries that should be installed alongside the host
+	// variant of the binary.
+	Jni_libs []string
 }
 
 type Binary struct {
@@ -2473,8 +2477,8 @@ func (j *Binary) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 		}
 
 		// The host installation rules make the installed wrapper depend on all the dependencies
-		// of the wrapper variant, which will include the common variant's jar file.  This is
-		// verified by TestBinary.
+		// of the wrapper variant, which will include the common variant's jar file and any JNI
+		// libraries.  This is verified by TestBinary.
 		j.binaryFile = ctx.InstallExecutable(android.PathForModuleInstall(ctx, "bin"),
 			ctx.ModuleName(), j.wrapperFile)
 	}
@@ -2483,6 +2487,10 @@ func (j *Binary) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 func (j *Binary) DepsMutator(ctx android.BottomUpMutatorContext) {
 	if ctx.Arch().ArchType == android.Common {
 		j.deps(ctx)
+	} else {
+		// This dependency ensures the host installation rules will install the jni libraries
+		// when the wrapper is installed.
+		ctx.AddVariationDependencies(nil, jniLibTag, j.binaryProperties.Jni_libs...)
 	}
 }