Add a new SDK member type java_systemserver_libs.

Similar to java_boot_libs, java_systemserver_libs only provide access
to their dex implementation jar for use by dexpreopting and do not
provide an actual implementation jar.

This is used in the subsequent CL.

Bug: 194150908
Test: m nothing
Change-Id: Ib2e7d5e6c002314a0231f46934a766f4a27e610a

sdk/java_sdk_test.go

@@ -482,6 +482,71 @@ module_exports_snapshot {
 	)
 }
 
+func TestSnapshotWithJavaSystemserverLibrary(t *testing.T) {
+	result := android.GroupFixturePreparers(
+		prepareForSdkTestWithJava,
+		android.FixtureAddFile("aidl", nil),
+		android.FixtureAddFile("resource.txt", nil),
+	).RunTestWithBp(t, `
+		module_exports {
+			name: "myexports",
+			java_systemserver_libs: ["myjavalib"],
+		}
+
+		java_library {
+			name: "myjavalib",
+			srcs: ["Test.java"],
+			java_resources: ["resource.txt"],
+			// The aidl files should not be copied to the snapshot because a java_systemserver_libs member
+			// is not intended to be used for compiling Java, only for accessing the dex implementation
+			// jar.
+			aidl: {
+				export_include_dirs: ["aidl"],
+			},
+			system_modules: "none",
+			sdk_version: "none",
+			compile_dex: true,
+			permitted_packages: ["pkg.myjavalib"],
+		}
+	`)
+
+	CheckSnapshot(t, result, "myexports", "",
+		checkUnversionedAndroidBpContents(`
+// This is auto-generated. DO NOT EDIT.
+
+java_import {
+    name: "myjavalib",
+    prefer: false,
+    visibility: ["//visibility:public"],
+    apex_available: ["//apex_available:platform"],
+    jars: ["java_systemserver_libs/snapshot/jars/are/invalid/myjavalib.jar"],
+    permitted_packages: ["pkg.myjavalib"],
+}
+`),
+		checkVersionedAndroidBpContents(`
+// This is auto-generated. DO NOT EDIT.
+
+java_import {
+    name: "myexports_myjavalib@current",
+    sdk_member_name: "myjavalib",
+    visibility: ["//visibility:public"],
+    apex_available: ["//apex_available:platform"],
+    jars: ["java_systemserver_libs/snapshot/jars/are/invalid/myjavalib.jar"],
+    permitted_packages: ["pkg.myjavalib"],
+}
+
+module_exports_snapshot {
+    name: "myexports@current",
+    visibility: ["//visibility:public"],
+    java_systemserver_libs: ["myexports_myjavalib@current"],
+}
+`),
+		checkAllCopyRules(`
+.intermediates/myexports/common_os/empty -> java_systemserver_libs/snapshot/jars/are/invalid/myjavalib.jar
+`),
+	)
+}
+
 func TestHostSnapshotWithJavaImplLibrary(t *testing.T) {
 	result := android.GroupFixturePreparers(
 		prepareForSdkTestWithJava,