arch variant support for libs property

Test: bp2build tests and manually inspected Build file for libprotobuf-java-lite
Bug: 244210934
Change-Id: Id60d859eea2c23fa7a29784faeed5cb050d4193e

bp2build/java_library_conversion_test.go

@@ -715,3 +715,43 @@ func TestJavaLibraryKotlinCommonSrcs(t *testing.T) {
 		},
 	})
 }
+
+func TestJavaLibraryArchVariantLibs(t *testing.T) {
+	runJavaLibraryTestCase(t, Bp2buildTestCase{
+		Description: "java_library with arch variant libs",
+		Blueprint: `java_library {
+    name: "java-lib-1",
+    srcs: ["a.java"],
+    libs: ["java-lib-2"],
+    target: {
+        android: {
+            libs: ["java-lib-3"],
+        },
+    },
+    bazel_module: { bp2build_available: true },
+}
+
+	java_library{
+		name: "java-lib-2",
+}
+
+	java_library{
+		name: "java-lib-3",
+}
+`,
+		ExpectedBazelTargets: []string{
+			MakeBazelTarget("java_library", "java-lib-1", AttrNameToString{
+				"srcs": `["a.java"]`,
+				"deps": `[":java-lib-2-neverlink"] + select({
+        "//build/bazel/platforms/os:android": [":java-lib-3-neverlink"],
+        "//conditions:default": [],
+    })`,
+			}),
+			MakeNeverlinkDuplicateTarget("java_library", "java-lib-1"),
+			MakeBazelTarget("java_library", "java-lib-2", AttrNameToString{}),
+			MakeNeverlinkDuplicateTarget("java_library", "java-lib-2"),
+			MakeBazelTarget("java_library", "java-lib-3", AttrNameToString{}),
+			MakeNeverlinkDuplicateTarget("java_library", "java-lib-3"),
+		},
+	})
+}

java/java.go

@@ -2568,7 +2568,7 @@ type bp2BuildJavaInfo struct {
 // to be returned to the calling function.
 func (m *Library) convertLibraryAttrsBp2Build(ctx android.TopDownMutatorContext) (*javaCommonAttributes, *bp2BuildJavaInfo) {
 	var srcs bazel.LabelListAttribute
-	var deps bazel.LabelList
+	var deps bazel.LabelListAttribute
 	var staticDeps bazel.LabelList
 
 	archVariantProps := m.GetArchVariantProperties(ctx, &CommonProperties{})
@@ -2674,11 +2674,17 @@ func (m *Library) convertLibraryAttrsBp2Build(ctx android.TopDownMutatorContext)
 		Javacopts: bazel.MakeStringListAttribute(javacopts),
 	}
 
-	if m.properties.Libs != nil {
-		for _, d := range m.properties.Libs {
+	for axis, configToProps := range archVariantProps {
+		for config, _props := range configToProps {
+			if archProps, ok := _props.(*CommonProperties); ok {
+				var libLabels []bazel.Label
+				for _, d := range archProps.Libs {
 					neverlinkLabel := android.BazelLabelForModuleDepSingle(ctx, d)
 					neverlinkLabel.Label = neverlinkLabel.Label + "-neverlink"
-			deps.Add(&neverlinkLabel)
+					libLabels = append(libLabels, neverlinkLabel)
+				}
+				deps.SetSelectValue(axis, config, bazel.MakeLabelList(libLabels))
+			}
 		}
 	}
 
@@ -2696,7 +2702,7 @@ func (m *Library) convertLibraryAttrsBp2Build(ctx android.TopDownMutatorContext)
 	staticDeps.Add(protoDepLabel)
 
 	depLabels := &javaDependencyLabels{}
-	depLabels.Deps = bazel.MakeLabelListAttribute(deps)
+	depLabels.Deps = deps
 	depLabels.StaticDeps = bazel.MakeLabelListAttribute(staticDeps)
 
 	bp2BuildInfo := &bp2BuildJavaInfo{