Always drop deps from java_library with no srcs

This is the follow up from aosp/2750763

Test: CI and added unit test

Bug: 285952385
Change-Id: I64703ee4fa742b718ffb43f2af1b6ab43ddeb606
diff --git a/bp2build/java_library_conversion_test.go b/bp2build/java_library_conversion_test.go
index 8c78217..3260b1e 100644
--- a/bp2build/java_library_conversion_test.go
+++ b/bp2build/java_library_conversion_test.go
@@ -15,7 +15,6 @@
 package bp2build
 
 import (
-	"fmt"
 	"testing"
 
 	"android/soong/android"
@@ -143,26 +142,6 @@
 	})
 }
 
-func TestJavaLibraryFailsToConvertLibsWithNoSrcs(t *testing.T) {
-	runJavaLibraryTestCase(t, Bp2buildTestCase{
-		ExpectedErr: fmt.Errorf("Module has direct dependencies but no sources. Bazel will not allow this."),
-		Blueprint: `java_library {
-    name: "java-lib-1",
-    libs: ["java-lib-2"],
-    sdk_version: "current",
-    bazel_module: { bp2build_available: true },
-}
-
-java_library {
-    name: "java-lib-2",
-    srcs: ["a.java"],
-    sdk_version: "current",
-    bazel_module: { bp2build_available: false },
-}`,
-		ExpectedBazelTargets: []string{},
-	})
-}
-
 func TestJavaLibraryPlugins(t *testing.T) {
 	runJavaLibraryTestCaseWithRegistrationCtxFunc(t, Bp2buildTestCase{
 		Blueprint: `java_library {
@@ -869,6 +848,30 @@
 	})
 }
 
+func TestJavaLibraryLibsWithNoSrcs(t *testing.T) {
+	runJavaLibraryTestCase(t, Bp2buildTestCase{
+		Description: "java_library that has libs but no srcs",
+		Blueprint: `java_library {
+    name: "java-lib-1",
+    libs: ["java-lib-2"],
+    sdk_version: "current",
+    bazel_module: { bp2build_available: true },
+}
+
+java_library{
+    name: "java-lib-2",
+    bazel_module: { bp2build_available: false },
+}
+`,
+		ExpectedBazelTargets: []string{
+			MakeBazelTarget("java_library", "java-lib-1", AttrNameToString{
+				"sdk_version": `"current"`,
+			}),
+			MakeNeverlinkDuplicateTarget("java_library", "java-lib-1"),
+		},
+	})
+}
+
 func TestJavaLibraryArchVariantDeps(t *testing.T) {
 	runJavaLibraryTestCase(t, Bp2buildTestCase{
 		Description: "java_library with arch variant libs",