diff --git a/source/net/yacy/kelondro/order/Base64Order.java b/source/net/yacy/kelondro/order/Base64Order.java
index f3857a6f4..6e6ec9288 100644
--- a/source/net/yacy/kelondro/order/Base64Order.java
+++ b/source/net/yacy/kelondro/order/Base64Order.java
@@ -91,15 +91,15 @@ public class Base64Order extends AbstractOrder<byte[]> implements ByteOrder, Com
     public HandleSet getHandleSet(final int keylength, final int space) throws RowSpaceExceededException {
         return new HandleSet(keylength, this, space);
     }
-
-    public static byte[] zero(final int length) {
+    
+    public static byte[] zero(int length) {
         final byte[] z = new byte[length];
-        for (byte b : z) {
-            b = (byte) alpha_standard[0];
+        while (length > 0) {
+            length--; z[length] = (byte) alpha_standard[0];
         }
         return z;
     }
-    
+        
     public Order<byte[]> clone() {
         final Base64Order o = new Base64Order(this.asc, this.rfc1113compliant);
         o.rotate(zero);
diff --git a/source/net/yacy/repository/Blacklist.java b/source/net/yacy/repository/Blacklist.java
index 0f5cf32d8..38f3d0fbb 100644
--- a/source/net/yacy/repository/Blacklist.java
+++ b/source/net/yacy/repository/Blacklist.java
@@ -504,7 +504,7 @@ public class Blacklist {
             return BlacklistError.PATH_REGEX;
         }
 
-        return BlacklistError.DOUBLE_OCCURANCE.NO_ERROR;
+        return BlacklistError.NO_ERROR;
     }
 
     /**
diff --git a/source/net/yacy/repository/FilterEngine.java b/source/net/yacy/repository/FilterEngine.java
index 4b11f75f3..b1758f171 100644
--- a/source/net/yacy/repository/FilterEngine.java
+++ b/source/net/yacy/repository/FilterEngine.java
@@ -45,7 +45,6 @@ public class FilterEngine {
 			this.types = types;
 		}
 
-		@Override
 		public int compareTo(FilterEntry fe) {
 			return this.path.compareToIgnoreCase(fe.path);
 		}