diff --git a/.gitignore b/.gitignore
index 9fb3b0a9..e87b1635 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,5 @@
 # Maven
 target/
-out/
 
 # Eclipse
 .settings/
diff --git a/core/src/main/java/io/parsingdata/metal/token/IterableToken.java b/core/src/main/java/io/parsingdata/metal/token/IterableToken.java
index d2d0d207..45b7b774 100644
--- a/core/src/main/java/io/parsingdata/metal/token/IterableToken.java
+++ b/core/src/main/java/io/parsingdata/metal/token/IterableToken.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2013-2018 Netherlands Forensic Institute
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package io.parsingdata.metal.token;
 
 import io.parsingdata.metal.Trampoline;
diff --git a/core/src/test/java/io/parsingdata/metal/expression/value/reference/CurrentIterationTest.java b/core/src/test/java/io/parsingdata/metal/expression/value/reference/CurrentIterationTest.java
index 1541c4fa..c65533a8 100644
--- a/core/src/test/java/io/parsingdata/metal/expression/value/reference/CurrentIterationTest.java
+++ b/core/src/test/java/io/parsingdata/metal/expression/value/reference/CurrentIterationTest.java
@@ -51,7 +51,7 @@ public static Collection<Object[]> data() {
         return Arrays.asList(new Object[][] {
             { "[0, 1, 2, 3, 255] rep(CURRENT_ITERATION), def(255)", seq(rep(VALUE_EQ_ITERATION), VALUE_EQ_255), stream(0, 1, 2, 3, 255), enc(), true },
             { "[0, 1, 2, 3] repn=4(CURRENT_ITERATION)", repn(VALUE_EQ_ITERATION, con(4)), stream(0, 1, 2, 3), enc(), true },
-            { "[255, 0, 1, 2, 3, 255] def(255), while<3(CURRENT_ITERATION), def (255)", seq(VALUE_EQ_255, whl(VALUE_EQ_ITERATION, not(eq(con(3)))), VALUE_EQ_255), stream(255, 0, 1, 2, 3, 255), enc(), true },
+            { "[255, 0, 1, 2, 3, 255] def(255), while!=3(CURRENT_ITERATION), def (255)", seq(VALUE_EQ_255, whl(VALUE_EQ_ITERATION, not(eq(con(3)))), VALUE_EQ_255), stream(255, 0, 1, 2, 3, 255), enc(), true },
             { "[0, 0, 1, 2, 255, 1, 0, 1, 2, 255] repn=2(CURRENT_ITERATION, repn=3(CURRENT_ITERATION))", repn(seq(VALUE_EQ_ITERATION, repn(VALUE_EQ_ITERATION, con(3)), VALUE_EQ_255), con(2)), stream(0, 0, 1, 2, 255, 1, 0, 1, 2, 255), enc(), true },
             { "[0, 1] seq(CURRENT_ITERATION, ...)", seq(VALUE_EQ_ITERATION, VALUE_EQ_ITERATION), stream(0, 1), enc(), false },
             { "[0] CURRENT_ITERATION", VALUE_EQ_ITERATION, stream(0), enc(), false },