diff --git a/src/Java.Interop/Tests/Java.Interop/JavaBooleanArrayContractTests.cs b/src/Java.Interop/Tests/Java.Interop/JavaBooleanArrayContractTests.cs
index 73241f76e..3f13eaa42 100644
--- a/src/Java.Interop/Tests/Java.Interop/JavaBooleanArrayContractTests.cs
+++ b/src/Java.Interop/Tests/Java.Interop/JavaBooleanArrayContractTests.cs
@@ -11,6 +11,21 @@ namespace Java.InteropTests
 	[TestFixture]
 	public class JavaBooleanArrayContractTests : JavaPrimitiveArrayContract<JavaBooleanArray, bool>
 	{
+		protected override ICollection<bool> CreateCollection (IEnumerable<bool> values)
+		{
+			return new JavaBooleanArray (values);
+		}
+
+		protected override ICollection<bool> CreateCollection (IList<bool> values)
+		{
+			return new JavaBooleanArray (values);
+		}
+
+		protected override ICollection<bool> CreateCollection (int length)
+		{
+			return new JavaBooleanArray (length);
+		}
+
 		protected override bool CreateValueA ()
 		{
 			return true;
diff --git a/src/Java.Interop/Tests/Java.Interop/JavaCharArrayContractTests.cs b/src/Java.Interop/Tests/Java.Interop/JavaCharArrayContractTests.cs
index 343d93288..350df67fa 100644
--- a/src/Java.Interop/Tests/Java.Interop/JavaCharArrayContractTests.cs
+++ b/src/Java.Interop/Tests/Java.Interop/JavaCharArrayContractTests.cs
@@ -11,6 +11,20 @@ namespace Java.InteropTests
 	[TestFixture]
 	public class JavaCharArrayContractTests : JavaPrimitiveArrayContract<JavaCharArray, char>
 	{
+		protected override ICollection<char> CreateCollection (IEnumerable<char> values)
+		{
+			return new JavaCharArray (values);
+		}
+
+		protected override ICollection<char> CreateCollection (IList<char> values)
+		{
+			return new JavaCharArray (values);
+		}
+
+		protected override ICollection<char> CreateCollection (int length)
+		{
+			return new JavaCharArray (length);
+		}
 	}
 }
 
diff --git a/src/Java.Interop/Tests/Java.Interop/JavaDoubleArrayContractTests.cs b/src/Java.Interop/Tests/Java.Interop/JavaDoubleArrayContractTests.cs
index ef263b525..6f00e3ccc 100644
--- a/src/Java.Interop/Tests/Java.Interop/JavaDoubleArrayContractTests.cs
+++ b/src/Java.Interop/Tests/Java.Interop/JavaDoubleArrayContractTests.cs
@@ -11,6 +11,20 @@ namespace Java.InteropTests
 	[TestFixture]
 	public class JavaDoubleArrayContractTests : JavaPrimitiveArrayContract<JavaDoubleArray, double>
 	{
+		protected override ICollection<double> CreateCollection (IEnumerable<double> values)
+		{
+			return new JavaDoubleArray (values);
+		}
+
+		protected override ICollection<double> CreateCollection (IList<double> values)
+		{
+			return new JavaDoubleArray (values);
+		}
+
+		protected override ICollection<double> CreateCollection (int length)
+		{
+			return new JavaDoubleArray (length);
+		}
 	}
 }
 
diff --git a/src/Java.Interop/Tests/Java.Interop/JavaInt16ArrayContractTests.cs b/src/Java.Interop/Tests/Java.Interop/JavaInt16ArrayContractTests.cs
index 1462c449f..1705edd84 100644
--- a/src/Java.Interop/Tests/Java.Interop/JavaInt16ArrayContractTests.cs
+++ b/src/Java.Interop/Tests/Java.Interop/JavaInt16ArrayContractTests.cs
@@ -11,6 +11,20 @@ namespace Java.InteropTests
 	[TestFixture]
 	public class JavaInt16ArrayContractTests : JavaPrimitiveArrayContract<JavaInt16Array, short>
 	{
+		protected override ICollection<short> CreateCollection (IEnumerable<short> values)
+		{
+			return new JavaInt16Array (values);
+		}
+
+		protected override ICollection<short> CreateCollection (IList<short> values)
+		{
+			return new JavaInt16Array (values);
+		}
+
+		protected override ICollection<short> CreateCollection (int length)
+		{
+			return new JavaInt16Array (length);
+		}
 	}
 }
 
diff --git a/src/Java.Interop/Tests/Java.Interop/JavaInt32ArrayContractTests.cs b/src/Java.Interop/Tests/Java.Interop/JavaInt32ArrayContractTests.cs
index 1dd9f8e6a..ddc2bc911 100644
--- a/src/Java.Interop/Tests/Java.Interop/JavaInt32ArrayContractTests.cs
+++ b/src/Java.Interop/Tests/Java.Interop/JavaInt32ArrayContractTests.cs
@@ -11,6 +11,20 @@ namespace Java.InteropTests
 	[TestFixture]
 	public class JavaInt32ArrayContractTests : JavaPrimitiveArrayContract<JavaInt32Array, int>
 	{
+		protected override ICollection<int> CreateCollection (IEnumerable<int> values)
+		{
+			return new JavaInt32Array (values);
+		}
+
+		protected override ICollection<int> CreateCollection (IList<int> values)
+		{
+			return new JavaInt32Array (values);
+		}
+
+		protected override ICollection<int> CreateCollection (int length)
+		{
+			return new JavaInt32Array (length);
+		}
 	}
 }
 
diff --git a/src/Java.Interop/Tests/Java.Interop/JavaInt64ArrayContractTests.cs b/src/Java.Interop/Tests/Java.Interop/JavaInt64ArrayContractTests.cs
index 32c8586bf..f384760e8 100644
--- a/src/Java.Interop/Tests/Java.Interop/JavaInt64ArrayContractTests.cs
+++ b/src/Java.Interop/Tests/Java.Interop/JavaInt64ArrayContractTests.cs
@@ -11,6 +11,20 @@ namespace Java.InteropTests
 	[TestFixture]
 	public class JavaInt64ArrayContractTests : JavaPrimitiveArrayContract<JavaInt64Array, long>
 	{
+		protected override ICollection<long> CreateCollection (IEnumerable<long> values)
+		{
+			return new JavaInt64Array (values);
+		}
+
+		protected override ICollection<long> CreateCollection (IList<long> values)
+		{
+			return new JavaInt64Array (values);
+		}
+
+		protected override ICollection<long> CreateCollection (int length)
+		{
+			return new JavaInt64Array (length);
+		}
 	}
 }
 
diff --git a/src/Java.Interop/Tests/Java.Interop/JavaPrimitiveArrayContract.cs b/src/Java.Interop/Tests/Java.Interop/JavaPrimitiveArrayContract.cs
index 59b9d4334..d20c52a86 100644
--- a/src/Java.Interop/Tests/Java.Interop/JavaPrimitiveArrayContract.cs
+++ b/src/Java.Interop/Tests/Java.Interop/JavaPrimitiveArrayContract.cs
@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using System.Reflection;
 
 using Java.Interop;
 
@@ -22,11 +21,9 @@ protected override TElement CreateValueB ()
 			return FromInt32 ((int) 'B');
 		}
 
-		protected override ICollection<TElement> CreateCollection (IEnumerable<TElement> values)
-		{
-			var array       = (JavaPrimitiveArray<TElement>) Activator.CreateInstance (typeof (TArray), values);
-			return array;
-		}
+		protected abstract ICollection<TElement> CreateCollection (IList<TElement> values);
+
+		protected abstract ICollection<TElement> CreateCollection (int length);
 
 		protected TElement FromInt32 (int value)
 		{
@@ -36,17 +33,9 @@ protected TElement FromInt32 (int value)
 		[Test]
 		public void Constructor_Exceptions ()
 		{
-			var ctor = typeof (TArray).GetConstructor (new[]{ typeof (IList<TElement>) });
-			var ex = Assert.Throws<TargetInvocationException> (() => ctor.Invoke (new object[]{ null }));
-			Assert.IsTrue (ex.InnerException is ArgumentNullException);
-
-			ctor = typeof (TArray).GetConstructor (new[]{ typeof (IEnumerable<TElement>) });
-			ex = Assert.Throws<TargetInvocationException> (() => ctor.Invoke (new object[]{ null }));
-			Assert.IsTrue (ex.InnerException is ArgumentNullException);
-
-			ctor = typeof (TArray).GetConstructor (new[]{ typeof (int) });
-			ex = Assert.Throws<TargetInvocationException> (() => ctor.Invoke (new object[]{ -1 }));
-			Assert.IsTrue (ex.InnerException is ArgumentException);
+			Assert.Throws<ArgumentNullException>(() => CreateCollection ((IEnumerable<TElement>) null));
+			Assert.Throws<ArgumentNullException>(() => CreateCollection ((IList<TElement>) null));
+			Assert.Throws<ArgumentException>(() => CreateCollection (-1));
 		}
 
 		[Test]
diff --git a/src/Java.Interop/Tests/Java.Interop/JavaSByteArrayContractTests.cs b/src/Java.Interop/Tests/Java.Interop/JavaSByteArrayContractTests.cs
index 4f897fe15..64228bd27 100644
--- a/src/Java.Interop/Tests/Java.Interop/JavaSByteArrayContractTests.cs
+++ b/src/Java.Interop/Tests/Java.Interop/JavaSByteArrayContractTests.cs
@@ -11,6 +11,20 @@ namespace Java.InteropTests
 	[TestFixture]
 	public class JavaSByteArrayContractTests : JavaPrimitiveArrayContract<JavaSByteArray, sbyte>
 	{
+		protected override ICollection<sbyte> CreateCollection (IEnumerable<sbyte> values)
+		{
+			return new JavaSByteArray (values);
+		}
+
+		protected override ICollection<sbyte> CreateCollection (IList<sbyte> values)
+		{
+			return new JavaSByteArray (values);
+		}
+
+		protected override ICollection<sbyte> CreateCollection (int length)
+		{
+			return new JavaSByteArray (length);
+		}
 	}
 }
 
diff --git a/src/Java.Interop/Tests/Java.Interop/JavaSingleArrayContractTests.cs b/src/Java.Interop/Tests/Java.Interop/JavaSingleArrayContractTests.cs
index 66c510a0c..7d3d3c303 100644
--- a/src/Java.Interop/Tests/Java.Interop/JavaSingleArrayContractTests.cs
+++ b/src/Java.Interop/Tests/Java.Interop/JavaSingleArrayContractTests.cs
@@ -11,6 +11,20 @@ namespace Java.InteropTests
 	[TestFixture]
 	public class JavaSingleArrayContractTests : JavaPrimitiveArrayContract<JavaSingleArray, float>
 	{
+		protected override ICollection<float> CreateCollection (IEnumerable<float> values)
+		{
+			return new JavaSingleArray (values);
+		}
+
+		protected override ICollection<float> CreateCollection (IList<float> values)
+		{
+			return new JavaSingleArray (values);
+		}
+
+		protected override ICollection<float> CreateCollection (int length)
+		{
+			return new JavaSingleArray (length);
+		}
 	}
 }
 
diff --git a/src/Java.Interop/Tests/Java.Interop/JniEnvironmentTests.cs b/src/Java.Interop/Tests/Java.Interop/JniEnvironmentTests.cs
index 3164c216b..b24626161 100644
--- a/src/Java.Interop/Tests/Java.Interop/JniEnvironmentTests.cs
+++ b/src/Java.Interop/Tests/Java.Interop/JniEnvironmentTests.cs
@@ -1,5 +1,4 @@
 using System;
-using System.Reflection;
 using System.Runtime.InteropServices;
 
 using Java.Interop;
diff --git a/src/Java.Interop/Tests/Java.Interop/JniTransitionTest.cs b/src/Java.Interop/Tests/Java.Interop/JniTransitionTest.cs
index 7fedd4158..565d100a8 100644
--- a/src/Java.Interop/Tests/Java.Interop/JniTransitionTest.cs
+++ b/src/Java.Interop/Tests/Java.Interop/JniTransitionTest.cs
@@ -1,5 +1,4 @@
 using System;
-using System.Reflection;
 
 using Java.Interop;