Merge "Lift BazelHandler interface into android/"
diff --git a/apex/platform_bootclasspath_test.go b/apex/platform_bootclasspath_test.go
index 306e1ea..e0421f6 100644
--- a/apex/platform_bootclasspath_test.go
+++ b/apex/platform_bootclasspath_test.go
@@ -163,8 +163,8 @@
 	android.AssertPathsRelativeToTopEquals(t, "metadata flags", []string{"out/soong/.intermediates/bar-fragment/android_common_apex10000/modular-hiddenapi/metadata.csv"}, info.MetadataPaths)
 	android.AssertPathsRelativeToTopEquals(t, "index flags", []string{"out/soong/.intermediates/bar-fragment/android_common_apex10000/modular-hiddenapi/index.csv"}, info.IndexPaths)
 
-	android.AssertArrayString(t, "stub flags", []string{"out/soong/.intermediates/bar-fragment/android_common_apex10000/modular-hiddenapi/stub-flags.csv:out/soong/.intermediates/bar-fragment/android_common_apex10000/modular-hiddenapi/signature-patterns.csv"}, info.StubFlagSubsets.RelativeToTop())
-	android.AssertArrayString(t, "all flags", []string{"out/soong/.intermediates/bar-fragment/android_common_apex10000/modular-hiddenapi/all-flags.csv:out/soong/.intermediates/bar-fragment/android_common_apex10000/modular-hiddenapi/signature-patterns.csv"}, info.FlagSubsets.RelativeToTop())
+	android.AssertArrayString(t, "stub flags", []string{"out/soong/.intermediates/bar-fragment/android_common_apex10000/modular-hiddenapi/filtered-stub-flags.csv:out/soong/.intermediates/bar-fragment/android_common_apex10000/modular-hiddenapi/signature-patterns.csv"}, info.StubFlagSubsets.RelativeToTop())
+	android.AssertArrayString(t, "all flags", []string{"out/soong/.intermediates/bar-fragment/android_common_apex10000/modular-hiddenapi/filtered-flags.csv:out/soong/.intermediates/bar-fragment/android_common_apex10000/modular-hiddenapi/signature-patterns.csv"}, info.FlagSubsets.RelativeToTop())
 }
 
 func TestPlatformBootclasspathDependencies(t *testing.T) {
diff --git a/java/hiddenapi_modular.go b/java/hiddenapi_modular.go
index 8a06a99..8e39f40 100644
--- a/java/hiddenapi_modular.go
+++ b/java/hiddenapi_modular.go
@@ -948,6 +948,22 @@
 	return patternsFile
 }
 
+// buildRuleRemoveBlockedFlag creates a rule that will remove entries from the input path which
+// only have blocked flags. It will not remove entries that have blocked as well as other flags,
+// e.g. blocked,core-platform-api.
+func buildRuleRemoveBlockedFlag(ctx android.BuilderContext, name string, desc string, inputPath android.Path, filteredPath android.WritablePath) {
+	rule := android.NewRuleBuilder(pctx, ctx)
+	rule.Command().
+		Text(`grep -vE "^[^,]+,blocked$"`).Input(inputPath).Text(">").Output(filteredPath).
+		// Grep's exit code depends on whether it finds anything. It is 0 (build success) when it finds
+		// something and 1 (build failure) when it does not and 2 (when it encounters an error).
+		// However, while it is unlikely it is not an error if this does not find any matches. The
+		// following will only run if the grep does not find something and in that case it will treat
+		// an exit code of 1 as success and anything else as failure.
+		Text("|| test $? -eq 1")
+	rule.Build(name, desc)
+}
+
 // buildRuleValidateOverlappingCsvFiles checks that the modular CSV files, i.e. the files generated
 // by the individual bootclasspath_fragment modules are subsets of the monolithic CSV file.
 func buildRuleValidateOverlappingCsvFiles(ctx android.BuilderContext, name string, desc string, monolithicFilePath android.WritablePath, csvSubsets SignatureCsvSubsets) android.WritablePath {
@@ -1036,14 +1052,24 @@
 		encodedBootDexJarsByModule[name] = encodedDex
 	}
 
+	// Generate the filtered-stub-flags.csv file which contains the filtered stub flags that will be
+	// compared against the monolithic stub flags.
+	filteredStubFlagsCSV := android.PathForModuleOut(ctx, hiddenApiSubDir, "filtered-stub-flags.csv")
+	buildRuleRemoveBlockedFlag(ctx, "modularHiddenApiFilteredStubFlags", "modular hiddenapi filtered stub flags", stubFlagsCSV, filteredStubFlagsCSV)
+
+	// Generate the filtered-flags.csv file which contains the filtered flags that will be compared
+	// against the monolithic flags.
+	filteredFlagsCSV := android.PathForModuleOut(ctx, hiddenApiSubDir, "filtered-flags.csv")
+	buildRuleRemoveBlockedFlag(ctx, "modularHiddenApiFilteredFlags", "modular hiddenapi filtered flags", allFlagsCSV, filteredFlagsCSV)
+
 	// Store the paths in the info for use by other modules and sdk snapshot generation.
 	output := HiddenAPIOutput{
 		HiddenAPIFlagOutput: HiddenAPIFlagOutput{
-			StubFlagsPath:       stubFlagsCSV,
+			StubFlagsPath:       filteredStubFlagsCSV,
 			AnnotationFlagsPath: annotationFlagsCSV,
 			MetadataPath:        metadataCSV,
 			IndexPath:           indexCSV,
-			AllFlagsPath:        allFlagsCSV,
+			AllFlagsPath:        filteredFlagsCSV,
 		},
 		EncodedBootDexFilesByModule: encodedBootDexJarsByModule,
 	}
diff --git a/scripts/hiddenapi/verify_overlaps.py b/scripts/hiddenapi/verify_overlaps.py
index a4a423e..6432bf1 100755
--- a/scripts/hiddenapi/verify_overlaps.py
+++ b/scripts/hiddenapi/verify_overlaps.py
@@ -331,8 +331,11 @@
     for signature in allSignatures:
         monolithicRow = monolithicFlagsDict.get(signature, {})
         monolithicFlags = monolithicRow.get(None, [])
-        modularRow = modularFlagsDict.get(signature, {})
-        modularFlags = modularRow.get(None, [])
+        if signature in modularFlagsDict:
+            modularRow = modularFlagsDict.get(signature, {})
+            modularFlags = modularRow.get(None, [])
+        else:
+            modularFlags = ["blocked"]
         if monolithicFlags != modularFlags:
             mismatchingSignatures.append((signature, modularFlags, monolithicFlags))
     return mismatchingSignatures
diff --git a/scripts/hiddenapi/verify_overlaps_test.py b/scripts/hiddenapi/verify_overlaps_test.py
index 7477254..00c0611 100755
--- a/scripts/hiddenapi/verify_overlaps_test.py
+++ b/scripts/hiddenapi/verify_overlaps_test.py
@@ -298,7 +298,7 @@
         ]
         self.assertEqual(expected, mismatches)
 
-    def test_missing_from_monolithic(self):
+    def test_match_treat_missing_from_modular_as_blocked(self):
         monolithic = self.read_signature_csv_from_string_as_dict('')
         modular = self.read_signature_csv_from_string_as_dict('''
 Ljava/lang/Object;->toString()Ljava/lang/String;,public-api,system-api,test-api
@@ -313,7 +313,7 @@
         ]
         self.assertEqual(expected, mismatches)
 
-    def test_missing_from_modular(self):
+    def test_mismatch_treat_missing_from_modular_as_blocked(self):
         monolithic = self.read_signature_csv_from_string_as_dict('''
 Ljava/lang/Object;->hashCode()I,public-api,system-api,test-api
 ''')
@@ -322,7 +322,7 @@
         expected = [
             (
                 'Ljava/lang/Object;->hashCode()I',
-                [],
+                ['blocked'],
                 ['public-api', 'system-api', 'test-api'],
             ),
         ]
@@ -334,13 +334,7 @@
 ''')
         modular = {}
         mismatches = compare_signature_flags(monolithic, modular)
-        expected = [
-            (
-                'Ljava/lang/Object;->hashCode()I',
-                [],
-                ['blocked'],
-            ),
-        ]
+        expected = []
         self.assertEqual(expected, mismatches)
 
 if __name__ == '__main__':
diff --git a/sdk/bootclasspath_fragment_sdk_test.go b/sdk/bootclasspath_fragment_sdk_test.go
index 60cc6b3..bed2ecf 100644
--- a/sdk/bootclasspath_fragment_sdk_test.go
+++ b/sdk/bootclasspath_fragment_sdk_test.go
@@ -138,8 +138,8 @@
         metadata: "hiddenapi/metadata.csv",
         index: "hiddenapi/index.csv",
         signature_patterns: "hiddenapi/signature-patterns.csv",
-        stub_flags: "hiddenapi/stub-flags.csv",
-        all_flags: "hiddenapi/all-flags.csv",
+        stub_flags: "hiddenapi/filtered-stub-flags.csv",
+        all_flags: "hiddenapi/filtered-flags.csv",
     },
 }
 
@@ -166,8 +166,8 @@
         metadata: "hiddenapi/metadata.csv",
         index: "hiddenapi/index.csv",
         signature_patterns: "hiddenapi/signature-patterns.csv",
-        stub_flags: "hiddenapi/stub-flags.csv",
-        all_flags: "hiddenapi/all-flags.csv",
+        stub_flags: "hiddenapi/filtered-stub-flags.csv",
+        all_flags: "hiddenapi/filtered-flags.csv",
     },
 }
 
@@ -191,8 +191,8 @@
 .intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/metadata.csv -> hiddenapi/metadata.csv
 .intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/index.csv -> hiddenapi/index.csv
 .intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/signature-patterns.csv -> hiddenapi/signature-patterns.csv
-.intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/stub-flags.csv -> hiddenapi/stub-flags.csv
-.intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/all-flags.csv -> hiddenapi/all-flags.csv
+.intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/filtered-stub-flags.csv -> hiddenapi/filtered-stub-flags.csv
+.intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/filtered-flags.csv -> hiddenapi/filtered-flags.csv
 .intermediates/mysdk/common_os/empty -> java_boot_libs/snapshot/jars/are/invalid/mybootlib.jar
 		`),
 		snapshotTestPreparer(checkSnapshotWithoutSource, preparerForSnapshot),
@@ -339,8 +339,8 @@
         metadata: "hiddenapi/metadata.csv",
         index: "hiddenapi/index.csv",
         signature_patterns: "hiddenapi/signature-patterns.csv",
-        stub_flags: "hiddenapi/stub-flags.csv",
-        all_flags: "hiddenapi/all-flags.csv",
+        stub_flags: "hiddenapi/filtered-stub-flags.csv",
+        all_flags: "hiddenapi/filtered-flags.csv",
     },
 }
 
@@ -424,8 +424,8 @@
         metadata: "hiddenapi/metadata.csv",
         index: "hiddenapi/index.csv",
         signature_patterns: "hiddenapi/signature-patterns.csv",
-        stub_flags: "hiddenapi/stub-flags.csv",
-        all_flags: "hiddenapi/all-flags.csv",
+        stub_flags: "hiddenapi/filtered-stub-flags.csv",
+        all_flags: "hiddenapi/filtered-flags.csv",
     },
 }
 
@@ -503,8 +503,8 @@
 .intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/metadata.csv -> hiddenapi/metadata.csv
 .intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/index.csv -> hiddenapi/index.csv
 .intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/signature-patterns.csv -> hiddenapi/signature-patterns.csv
-.intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/stub-flags.csv -> hiddenapi/stub-flags.csv
-.intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/all-flags.csv -> hiddenapi/all-flags.csv
+.intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/filtered-stub-flags.csv -> hiddenapi/filtered-stub-flags.csv
+.intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/filtered-flags.csv -> hiddenapi/filtered-flags.csv
 .intermediates/mysdk/common_os/empty -> java_boot_libs/snapshot/jars/are/invalid/mybootlib.jar
 .intermediates/myothersdklibrary.stubs/android_common/javac/myothersdklibrary.stubs.jar -> sdk_library/public/myothersdklibrary-stubs.jar
 .intermediates/myothersdklibrary.stubs.source/android_common/metalava/myothersdklibrary.stubs.source_api.txt -> sdk_library/public/myothersdklibrary.txt
@@ -546,13 +546,13 @@
 			android.AssertStringEquals(t, "updatable-bcp-packages.txt", expectedContents, rule.Args["content"])
 
 			rule = module.Output("out/soong/hiddenapi/hiddenapi-flags.csv.valid")
-			android.AssertStringDoesContain(t, "verify-overlaps", rule.RuleParams.Command, " snapshot/hiddenapi/all-flags.csv:snapshot/hiddenapi/signature-patterns.csv ")
+			android.AssertStringDoesContain(t, "verify-overlaps", rule.RuleParams.Command, " snapshot/hiddenapi/filtered-flags.csv:snapshot/hiddenapi/signature-patterns.csv ")
 		}),
 		snapshotTestPreparer(checkSnapshotWithSourcePreferred, preparerForSnapshot),
 		snapshotTestChecker(checkSnapshotWithSourcePreferred, func(t *testing.T, result *android.TestResult) {
 			module := result.ModuleForTests("platform-bootclasspath", "android_common")
 			rule := module.Output("out/soong/hiddenapi/hiddenapi-flags.csv.valid")
-			android.AssertStringDoesContain(t, "verify-overlaps", rule.RuleParams.Command, " out/soong/.intermediates/mybootclasspathfragment/android_common_myapex/modular-hiddenapi/all-flags.csv:out/soong/.intermediates/mybootclasspathfragment/android_common_myapex/modular-hiddenapi/signature-patterns.csv ")
+			android.AssertStringDoesContain(t, "verify-overlaps", rule.RuleParams.Command, " out/soong/.intermediates/mybootclasspathfragment/android_common_myapex/modular-hiddenapi/filtered-flags.csv:out/soong/.intermediates/mybootclasspathfragment/android_common_myapex/modular-hiddenapi/signature-patterns.csv ")
 		}),
 		snapshotTestPreparer(checkSnapshotPreferredWithSource, preparerForSnapshot),
 	)
@@ -655,8 +655,8 @@
         metadata: "hiddenapi/metadata.csv",
         index: "hiddenapi/index.csv",
         signature_patterns: "hiddenapi/signature-patterns.csv",
-        stub_flags: "hiddenapi/stub-flags.csv",
-        all_flags: "hiddenapi/all-flags.csv",
+        stub_flags: "hiddenapi/filtered-stub-flags.csv",
+        all_flags: "hiddenapi/filtered-flags.csv",
     },
 }
 
@@ -858,8 +858,8 @@
         metadata: "hiddenapi/metadata.csv",
         index: "hiddenapi/index.csv",
         signature_patterns: "hiddenapi/signature-patterns.csv",
-        stub_flags: "hiddenapi/stub-flags.csv",
-        all_flags: "hiddenapi/all-flags.csv",
+        stub_flags: "hiddenapi/filtered-stub-flags.csv",
+        all_flags: "hiddenapi/filtered-flags.csv",
     },
 }
 
@@ -902,8 +902,8 @@
 .intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/metadata.csv -> hiddenapi/metadata.csv
 .intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/index.csv -> hiddenapi/index.csv
 .intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/signature-patterns.csv -> hiddenapi/signature-patterns.csv
-.intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/stub-flags.csv -> hiddenapi/stub-flags.csv
-.intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/all-flags.csv -> hiddenapi/all-flags.csv
+.intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/filtered-stub-flags.csv -> hiddenapi/filtered-stub-flags.csv
+.intermediates/mybootclasspathfragment/android_common/modular-hiddenapi/filtered-flags.csv -> hiddenapi/filtered-flags.csv
 .intermediates/mysdk/common_os/empty -> java_boot_libs/snapshot/jars/are/invalid/mybootlib.jar
 .intermediates/mysdklibrary.stubs/android_common/javac/mysdklibrary.stubs.jar -> sdk_library/public/mysdklibrary-stubs.jar
 .intermediates/mysdklibrary.stubs.source/android_common/metalava/mysdklibrary.stubs.source_api.txt -> sdk_library/public/mysdklibrary.txt