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diff --git a/watchmaker/framework/src/java/main/org/uncommons/watchmaker/framework/FitnessEvalutationTask.java b/watchmaker/framework/src/java/main/org/uncommons/watchmaker/framework/FitnessEvalutationTask.java
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+++ b/watchmaker/framework/src/java/main/org/uncommons/watchmaker/framework/FitnessEvalutationTask.java
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+//=============================================================================
+// Copyright 2006-2010 Daniel W. Dyer
+//
+// 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 org.uncommons.watchmaker.framework;
+
+import java.util.List;
+import java.util.concurrent.Callable;
+
+/**
+ * Callable task for performing parallel fitness evaluations.
+ * @param <T> The type of entity for which fitness is calculated.
+ * @author Daniel Dyer
+ */
+class FitnessEvalutationTask<T> implements Callable<EvaluatedCandidate<T>>
+{
+    private final FitnessEvaluator<? super T> fitnessEvaluator;
+    private final T candidate;
+    private final List<T> population;
+
+    /**
+     * Creates a task for performing fitness evaluations.
+     * @param fitnessEvaluator The fitness function used to determine candidate fitness.
+     * @param candidate The candidate to evaluate.
+     * @param population The entire current population.  This will include all
+     * of the candidates to evaluate along with any other individuals that are
+     * not being evaluated by this task.
+     */
+    FitnessEvalutationTask(FitnessEvaluator<? super T> fitnessEvaluator,
+                           T candidate,
+                           List<T> population)
+    {
+        this.fitnessEvaluator = fitnessEvaluator;
+        this.candidate = candidate;
+        this.population = population;
+    }
+
+
+    public EvaluatedCandidate<T> call()
+    {
+        return new EvaluatedCandidate<T>(candidate,
+                                         fitnessEvaluator.getFitness(candidate, population));
+    }
+}