$OpenBSD: patch-jdk_src_solaris_native_java_lang_java_props_md_c,v 1.2 2019/01/11 17:21:38 sthen Exp $
Index: jdk/src/solaris/native/java/lang/java_props_md.c
--- jdk/src/solaris/native/java/lang/java_props_md.c.orig
+++ jdk/src/solaris/native/java/lang/java_props_md.c
@@ -431,6 +431,10 @@ GetJavaProperties(JNIEnv *env)
     sprops.awt_toolkit = "sun.awt.X11.XToolkit";
 #endif
 
+#ifdef __OpenBSD__
+    sprops.java_net_preferIPv4Stack = "true";
+#endif
+
     /* This is used only for debugging of font problems. */
     v = getenv("JAVA2D_FONTPATH");
     sprops.font_dir = v ? v : NULL;
