4 files changed, 44 insertions, 0 deletions
diff --git a/dotnet/Mammoth/Couscous/java/lang/IllegalArgumentException.cs b/dotnet/Mammoth/Couscous/java/lang/IllegalArgumentException.cs
new file mode 100644
index 0000000..57ef62b
--- /dev/null
+++ b/dotnet/Mammoth/Couscous/java/lang/IllegalArgumentException.cs
@@ -0,0 +1,8 @@
+using System;
+
+namespace Mammoth.Couscous.java.lang {
+	internal class IllegalArgumentException : RuntimeException {
+        internal IllegalArgumentException(string message) : base(message) {
+        }
+	}
+}
diff --git a/dotnet/Mammoth/Couscous/java/math/BigInteger.cs b/dotnet/Mammoth/Couscous/java/math/BigInteger.cs
new file mode 100644
index 0000000..40ac3d3
--- /dev/null
+++ b/dotnet/Mammoth/Couscous/java/math/BigInteger.cs
@@ -0,0 +1,24 @@
+namespace Mammoth.Couscous.java.math {
+    internal class BigInteger {
+        internal static readonly BigInteger _ONE = new BigInteger(1);
+        
+        // TOOD: use proper BigInteger
+        private readonly long _value;
+        
+        internal BigInteger(string value) {
+            _value = long.Parse(value);
+        }
+        
+        internal BigInteger(long value) {
+            _value = value;
+        }
+        
+        internal BigInteger subtract(BigInteger other) {
+            return new BigInteger(_value - other._value);
+        }
+        
+        internal string toString() {
+            return _value.ToString();
+        }
+    }
+}
diff --git a/dotnet/Mammoth/Couscous/java/util/Arrays.cs b/dotnet/Mammoth/Couscous/java/util/Arrays.cs
new file mode 100644
index 0000000..093db83
--- /dev/null
+++ b/dotnet/Mammoth/Couscous/java/util/Arrays.cs
@@ -0,0 +1,7 @@
+namespace Mammoth.Couscous.java.util {
+    internal static class Arrays {
+        internal static List<T> asList<T>(T[] elements) {
+            return ToJava.ListToList(elements);
+        }
+    }
+}
diff --git a/dotnet/Mammoth/Couscous/java/util/function/BiConsumer.cs b/dotnet/Mammoth/Couscous/java/util/function/BiConsumer.cs
new file mode 100644
index 0000000..9479a78
--- /dev/null
+++ b/dotnet/Mammoth/Couscous/java/util/function/BiConsumer.cs
@@ -0,0 +1,5 @@
+namespace Mammoth.Couscous.java.util.function {
+    internal interface BiConsumer<T1, T2> {
+        void accept(T1 first, T2 second);
+    }
+}