Throw a duplicate field exception when a duplicate field is parsed.

diff --git a/src/main/java/net/pterodactylus/sone/core/SoneParser.java b/src/main/java/net/pterodactylus/sone/core/SoneParser.java
index 04d095a..7dc0744 100644 (file)
--- a/src/main/java/net/pterodactylus/sone/core/SoneParser.java
+++ b/src/main/java/net/pterodactylus/sone/core/SoneParser.java
@@ -153,7 +153,7 @@ public class SoneParser {
                                        profile.setField(profile.addField(fieldName), fieldValue);
                                } catch (IllegalArgumentException iae1) {
                                        logger.log(Level.WARNING, String.format("Duplicate field: %s", fieldName), iae1);
-                                       return null;
+                                       throw new DuplicateField();
                                }
                        }
                }
@@ -355,4 +355,8 @@ public class SoneParser {
        public static class MalformedXml extends RuntimeException {
 
        }
+
+        public static class DuplicateField extends RuntimeException {
+
+       }
 }