diff --git a/bind/bind_test.go b/bind/bind_test.go
index 02bfe6d..7314bd1 100644
--- a/bind/bind_test.go
+++ b/bind/bind_test.go
@@ -230,7 +230,7 @@
 		"-pkgdir="+filepath.Join(dir, "pkg", build.Default.GOOS+"_"+build.Default.GOARCH),
 		"ObjC/...",
 	)
-	cmd.Env = append(cmd.Env, "GOPATH="+dir)
+	cmd.Env = append(os.Environ(), "GOPATH="+dir)
 	if out, err := cmd.CombinedOutput(); err != nil {
 		t.Fatalf("failed to go install the generated ObjC wrappers: %v: %s", err, string(out))
 	}
@@ -271,7 +271,7 @@
 		"-pkgdir="+filepath.Join(dir, "pkg", build.Default.GOOS+"_"+build.Default.GOARCH),
 		"Java/...",
 	)
-	cmd.Env = append(cmd.Env, "GOPATH="+dir)
+	cmd.Env = append(os.Environ(), "GOPATH="+dir)
 	if out, err := cmd.CombinedOutput(); err != nil {
 		t.Fatalf("failed to go install the generated Java wrappers: %v: %s", err, string(out))
 	}
diff --git a/bind/testdata/java.go.golden b/bind/testdata/java.go.golden
index 9271eaf..ee66846 100644
--- a/bind/testdata/java.go.golden
+++ b/bind/testdata/java.go.golden
@@ -156,6 +156,10 @@
 	DIRECTIONALITY_RIGHT_TO_LEFT_EMBEDDING = 16
 	DIRECTIONALITY_RIGHT_TO_LEFT_OVERRIDE = 17
 	DIRECTIONALITY_POP_DIRECTIONAL_FORMAT = 18
+	DIRECTIONALITY_LEFT_TO_RIGHT_ISOLATE = 19
+	DIRECTIONALITY_RIGHT_TO_LEFT_ISOLATE = 20
+	DIRECTIONALITY_FIRST_STRONG_ISOLATE = 21
+	DIRECTIONALITY_POP_DIRECTIONAL_ISOLATE = 22
 	MIN_SUPPLEMENTARY_CODE_POINT = 65536
 	MIN_CODE_POINT = 0
 	MAX_CODE_POINT = 1114111