X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Fdata%2FProfile.java;h=9c7da484a7854e4aabf3f7a04e5d21b2836b0836;hb=b2e3ba7456f47f01552c8e1300e295c48d8fe9a8;hp=5a4fde041052c8c4f0a7228196eb5fba9b3698fa;hpb=6f019de1d4d9742981d851ac3c9097cca8bff58e;p=Sone.git

diff --git a/src/main/java/net/pterodactylus/sone/data/Profile.java b/src/main/java/net/pterodactylus/sone/data/Profile.java
index 5a4fde0..9c7da48 100644
--- a/src/main/java/net/pterodactylus/sone/data/Profile.java
+++ b/src/main/java/net/pterodactylus/sone/data/Profile.java
@@ -326,9 +326,11 @@ 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");
-		checkState(getFieldByName(fieldName) == null, "fieldName must be unique");
+		if (getFieldByName(fieldName) != null) {
+			throw new DuplicateField();
+		}
 		@SuppressWarnings("synthetic-access")
-		Field field = new Field().setName(fieldName);
+		Field field = new Field().setName(fieldName).setValue("");
 		fields.add(field);
 		return 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 { }
+
 }