<AWT Dev> RFR: 8155772: gtk3_interface.c compilation error on Ubuntu 12.10

[Kevin Rushforth]

I am not a "R" reviewer for AWT, but using NULL as if it were an int is 
incorrect, so this fix looks good to me.

-- Kevin


Phil Race wrote:
> Bug : https://bugs.openjdk.java.net/browse/JDK-8155772
>
> On my system in this file it appears NULL is "#define (void*)0 which 
> causes the error
>
> "error: initialization makes integer from pointer without a cast 
> [-Werror]"
>
> Webrev to fix in-line below.
>
> -phil.
>
> diff --git 
> a/src/java.desktop/unix/native/libawt_xawt/awt/gtk3_interface.c 
> b/src/java.desktop/unix/native/libawt_xawt/awt/gtk3_interface.c
> --- a/src/java.desktop/unix/native/libawt_xawt/awt/gtk3_interface.c
> +++ b/src/java.desktop/unix/native/libawt_xawt/awt/gtk3_interface.c
> @@ -2547,14 +2547,14 @@
>
>  static jobject get_integer_property(JNIEnv *env, GtkSettings* settings,
>                                                               const 
> gchar* key) {
> -    gint intval = NULL;
> +    gint intval = 0;
>      (*fp_g_object_get)(settings, key, &intval, NULL);
>      return create_Integer(env, intval);
>  }
>
>  static jobject get_boolean_property(JNIEnv *env, GtkSettings* settings,
>                                                               const 
> gchar* key) {
> -    gint intval = NULL;
> +    gint intval = 0;
>      (*fp_g_object_get)(settings, key, &intval, NULL);
>      return create_Boolean(env, intval);
>  }
>