Add FontConfiguration reflection and resource configuration

Author: atextor

core/esmf-native-support/src/main/java/org/eclipse/esmf/nativefeatures/DiagramFeature.java

@@ -363,8 +363,7 @@ private void setupFontConfiguration() {
       Native.forClass( "sun.font.CompositeFontDescriptor" )
             .registerEverythingForReflection();
       Native.forClass( "sun.font.FontDesignMetrics" )
-            .registerEverythingForReflection();
-      Native.forClass( "sun.font.FontDesignMetrics" )
+            .registerEverythingForReflection()
             .registerEverythingForJni();
       Native.forClass( java.awt.FontMetrics.class )
             .registerFieldsForJni( "font" )
@@ -400,6 +399,8 @@ private void setupFontConfiguration() {
             .registerMethodForJni( "readFile", java.nio.ByteBuffer.class );
 
       if ( isWindows() ) {
+         Native.forClass( "sun.awt.FontConfiguration" )
+               .registerEverythingForReflection();
          Native.addResource( "fontconfig.bfc" );
       }
    }

core/esmf-native-support/src/main/java/org/eclipse/esmf/substitution/Target_sun_awt_FontConfiguration.java

@@ -40,10 +40,10 @@
 public final class Target_sun_awt_FontConfiguration {
    @Substitute
    private void readFontConfigFile( final File f ) {
-      try ( final InputStream inputStream = Object.class.getResourceAsStream( "/fontconfig.bfc" ) ) {
+      try ( final InputStream inputStream = getClass().getResourceAsStream( "/fontconfig.bfc" ) ) {
          loadBinary( inputStream );
-      } catch ( final IOException e ) {
-         throw new RuntimeException( e );
+      } catch ( final IOException exception ) {
+         throw new RuntimeException( exception );
       }
    }