X-Git-Url: https://git.pterodactylus.net/?p=Sone.git;a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Fdata%2FProfile.java;fp=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Fdata%2FProfile.java;h=1f80248ebc864c7169dc9e406b56a8b29d4d35fe;hp=4bf26cc7b5d99abc88b849e957f01b4ddc786055;hb=28667abdadc0573ac106542f1fd42ab5775ec415;hpb=be1d948bbb2f9ff8ed5836d651b09ae658baed83

diff --git a/src/main/java/net/pterodactylus/sone/data/Profile.java b/src/main/java/net/pterodactylus/sone/data/Profile.java
index 4bf26cc..1f80248 100644
--- a/src/main/java/net/pterodactylus/sone/data/Profile.java
+++ b/src/main/java/net/pterodactylus/sone/data/Profile.java
@@ -326,7 +326,9 @@ public class Profile implements Fingerprintable {
 	public Field addField(String fieldName) throws IllegalArgumentException {
 		checkNotNull(fieldName, "fieldName must not be null");
 		checkArgument(fieldName.length() > 0, "fieldName must not be empty");
-		checkArgument(getFieldByName(fieldName) == null, "fieldName must be unique");
+		if (getFieldByName(fieldName) != null) {
+			throw new DuplicateField();
+		}
 		@SuppressWarnings("synthetic-access")
 		Field field = new Field().setName(fieldName);
 		fields.add(field);
@@ -553,4 +555,11 @@ public class Profile implements Fingerprintable {
 
 	}
 
+	/**
+	 * Exception that signals the addition of a field that already exists.
+	 *
+	 * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+	 */
+	public static class DuplicateField extends IllegalArgumentException { }
+
 }