Add private-stub-annotations.jar as core-java lib

Since currently android.jar compile against to it.

Test: m -j metalava_android_stubs_current
Bug: b/78245848
Change-Id: Id5812f69125085821182295e577849b5f2c4bead
diff --git a/java/java.go b/java/java.go
index 53f851b..a2ba7e6 100644
--- a/java/java.go
+++ b/java/java.go
@@ -693,7 +693,8 @@
 	ver := m.sdkVersion()
 	noStdLibs := Bool(m.properties.No_standard_libs)
 	switch {
-	case name == "core.current.stubs" || ver == "core_current" || noStdLibs || name == "stub-annotations":
+	case name == "core.current.stubs" || ver == "core_current" || noStdLibs || name == "stub-annotations" ||
+		name == "private-stub-annotations-jar":
 		return javaCore
 	case name == "android_system_stubs_current" || strings.HasPrefix(ver, "system_") || name == "metalava_android_system_stubs_current":
 		return javaSystem