Fix jacoco filters

Add space after -x argument for jacoco excludes.
Add .class to end of file name for jacoco includes.

Bug: 64836607
Test: jacoco_test.go
Change-Id: I4c1024755882c976f7326f7382c4f2e99a20233d

java/jacoco.go

@@ -76,7 +76,7 @@ func (j *Module) jacocoModuleToZipCommand(ctx android.ModuleContext) string {
 func jacocoFiltersToZipCommand(includes, excludes []string) string {
 	specs := ""
 	if len(excludes) > 0 {
-		specs += android.JoinWithPrefix(excludes, "-x") + " "
+		specs += android.JoinWithPrefix(excludes, "-x ") + " "
 	}
 	if len(includes) > 0 {
 		specs += strings.Join(includes, " ")
@@ -113,6 +113,8 @@ func jacocoFilterToSpec(filter string) (string, error) {
 		spec += "**/*.class"
 	} else if wildcard {
 		spec += "*.class"
+	} else {
+		spec += ".class"
 	}
 
 	return spec, nil

java/jacoco_test.go

@@ -20,6 +20,11 @@ func TestJacocoFilterToSpecs(t *testing.T) {
 	testCases := []struct {
 		name, in, out string
 	}{
+		{
+			name: "class",
+			in:   "package.Class",
+			out:  "package/Class.class",
+		},
 		{
 			name: "class wildcard",
 			in:   "package.Class*",
@@ -71,6 +76,12 @@ func TestJacocoFiltersToZipCommand(t *testing.T) {
 			includes: []string{"package/Class.class", "package2/Class.class"},
 			out:      "package/Class.class package2/Class.class",
 		},
+		{
+			name:     "excludes",
+			includes: []string{"package/**/*.class"},
+			excludes: []string{"package/Class.class"},
+			out:      "-x package/Class.class package/**/*.class",
+		},
 	}
 
 	for _, testCase := range testCases {