FOP-3148: NoSuchElementException when using font with no family name

Author: simonsteiner1984

fop-core/src/main/java/org/apache/fop/svg/font/FOPFontFamilyResolverImpl.java

@@ -21,6 +21,7 @@
 
 import java.io.InputStream;
 import java.util.Map;
+import java.util.Set;
 
 import org.apache.batik.bridge.FontFace;
 import org.apache.batik.gvt.font.GVTFontFace;
@@ -68,7 +69,11 @@ public FOPGVTFontFamily getFamilyThatCanDisplay(char c) {
         Map<String, Typeface> fonts = fontInfo.getFonts();
         for (Typeface font : fonts.values()) {
             if (font.hasChar(c)) {
-                String fontFamily = font.getFamilyNames().iterator().next();
+                Set<String> familyNames = font.getFamilyNames();
+                String fontFamily = font.getFontName();
+                if (!familyNames.isEmpty()) {
+                    fontFamily = familyNames.iterator().next();
+                }
                 return new FOPGVTFontFamily(fontInfo, fontFamily,
                         new FontTriplet(fontFamily, Font.STYLE_NORMAL, Font.WEIGHT_NORMAL),
                         new GVTFontFace(fontFamily));

fop-core/src/test/java/org/apache/fop/svg/font/FOPFontFamilyResolverTestCase.java

@@ -42,6 +42,7 @@
 import org.apache.batik.gvt.font.GVTFontFamily;
 import org.apache.batik.gvt.font.GVTLineMetrics;
 
+import org.apache.fop.fonts.CustomFont;
 import org.apache.fop.fonts.FontInfo;
 
 public class FOPFontFamilyResolverTestCase {
@@ -79,6 +80,14 @@ public void testGetFamilyThatCanDisplay() {
         assertNull(family);
     }
 
+    @Test
+    public void testGetFamilyThatCanDisplayNoFamily() {
+        CustomFont font = (CustomFont) fontInfo.getFonts().values().iterator().next();
+        font.setFamilyNames(Collections.<String>emptySet());
+        GVTFontFamily family = resolver.getFamilyThatCanDisplay('\u0180');
+        assertEquals(font.getFontName(), family.getFamilyName());
+    }
+
     @Test
     public void testDeriveFont() {
         FOPGVTFontFamily family = resolver.resolve(FontInfoBuilder.DEJAVU_LGC_SERIF);