Don't add apex_set deps in nondeterministic order

Test: unit tests
Change-Id: I97a9708cb6e5a4f3aef55697b6127f61e4d17720
diff --git a/apex/apex_test.go b/apex/apex_test.go
index 8a02a4a..2bed547 100644
--- a/apex/apex_test.go
+++ b/apex/apex_test.go
@@ -5281,7 +5281,16 @@
 		apex_set {
 			name: "myapex",
 			set: "myapex.apks",
+			exported_java_libs: ["myjavalib"],
 			exported_bootclasspath_fragments: ["my-bootclasspath-fragment"],
+			exported_systemserverclasspath_fragments: ["my-systemserverclasspath-fragment"],
+		}
+
+		java_import {
+			name: "myjavalib",
+			jars: ["myjavalib.jar"],
+			apex_available: ["myapex"],
+			permitted_packages: ["javalib"],
 		}
 
 		prebuilt_bootclasspath_fragment {
@@ -5298,6 +5307,12 @@
 			},
 		}
 
+		prebuilt_systemserverclasspath_fragment {
+			name: "my-systemserverclasspath-fragment",
+			contents: ["libbaz"],
+			apex_available: ["myapex"],
+		}
+
 		java_import {
 			name: "libfoo",
 			jars: ["libfoo.jar"],
@@ -5314,6 +5329,16 @@
 			shared_library: false,
 			permitted_packages: ["bar"],
 		}
+
+		java_sdk_library_import {
+			name: "libbaz",
+			public: {
+				jars: ["libbaz.jar"],
+			},
+			apex_available: ["myapex"],
+			shared_library: false,
+			permitted_packages: ["baz"],
+		}
 	`
 
 		ctx := testDexpreoptWithApexes(t, bp, "", preparer, fragment)
@@ -5326,6 +5351,24 @@
 			my-bootclasspath-fragment/index.csv
 			out/soong/.intermediates/frameworks/base/boot/platform-bootclasspath/android_common/hiddenapi-monolithic/index-from-classes.csv
 		`)
+
+		myApex := ctx.ModuleForTests("myapex", "android_common_myapex").Module()
+
+		overrideNames := []string{
+			"",
+			"myjavalib.myapex",
+			"libfoo.myapex",
+			"libbar.myapex",
+			"libbaz.myapex",
+		}
+		mkEntries := android.AndroidMkEntriesForTest(t, ctx, myApex)
+		for i, e := range mkEntries {
+			g := e.OverrideName
+			if w := overrideNames[i]; w != g {
+				t.Errorf("Expected override name %q, got %q", w, g)
+			}
+		}
+
 	})
 
 	t.Run("prebuilt with source library preferred", func(t *testing.T) {
diff --git a/apex/prebuilt.go b/apex/prebuilt.go
index cae507e..31cecf1 100644
--- a/apex/prebuilt.go
+++ b/apex/prebuilt.go
@@ -316,31 +316,29 @@
 	}
 }
 
-func (p *prebuiltCommon) getExportedDependencies() map[string]exportedDependencyTag {
-	dependencies := make(map[string]exportedDependencyTag)
-
-	for _, dep := range p.prebuiltCommonProperties.Exported_java_libs {
-		dependencies[dep] = exportedJavaLibTag
-	}
-
-	for _, dep := range p.prebuiltCommonProperties.Exported_bootclasspath_fragments {
-		dependencies[dep] = exportedBootclasspathFragmentTag
-	}
-
-	for _, dep := range p.prebuiltCommonProperties.Exported_systemserverclasspath_fragments {
-		dependencies[dep] = exportedSystemserverclasspathFragmentTag
-	}
-
-	return dependencies
+func (p *prebuiltCommon) hasExportedDeps() bool {
+	return len(p.prebuiltCommonProperties.Exported_java_libs) > 0 ||
+		len(p.prebuiltCommonProperties.Exported_bootclasspath_fragments) > 0 ||
+		len(p.prebuiltCommonProperties.Exported_systemserverclasspath_fragments) > 0
 }
 
 // prebuiltApexContentsDeps adds dependencies onto the prebuilt apex module's contents.
 func (p *prebuiltCommon) prebuiltApexContentsDeps(ctx android.BottomUpMutatorContext) {
 	module := ctx.Module()
 
-	for dep, tag := range p.getExportedDependencies() {
+	for _, dep := range p.prebuiltCommonProperties.Exported_java_libs {
 		prebuiltDep := android.PrebuiltNameFromSource(dep)
-		ctx.AddDependency(module, tag, prebuiltDep)
+		ctx.AddDependency(module, exportedJavaLibTag, prebuiltDep)
+	}
+
+	for _, dep := range p.prebuiltCommonProperties.Exported_bootclasspath_fragments {
+		prebuiltDep := android.PrebuiltNameFromSource(dep)
+		ctx.AddDependency(module, exportedBootclasspathFragmentTag, prebuiltDep)
+	}
+
+	for _, dep := range p.prebuiltCommonProperties.Exported_systemserverclasspath_fragments {
+		prebuiltDep := android.PrebuiltNameFromSource(dep)
+		ctx.AddDependency(module, exportedSystemserverclasspathFragmentTag, prebuiltDep)
 	}
 }
 
@@ -608,7 +606,7 @@
 // the listed modules need access to files from within the prebuilt .apex file.
 func (p *prebuiltCommon) createDeapexerModuleIfNeeded(ctx android.TopDownMutatorContext, deapexerName string, apexFileSource string) {
 	// Only create the deapexer module if it is needed.
-	if len(p.getExportedDependencies()) == 0 {
+	if !p.hasExportedDeps() {
 		return
 	}