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diff --git a/javaparser-symbol-solver-logic/src/main/java/com/github/javaparser/symbolsolver/logic/FunctionalInterfaceLogic.java b/javaparser-symbol-solver-logic/src/main/java/com/github/javaparser/symbolsolver/logic/FunctionalInterfaceLogic.java
new file mode 100644
index 000000000..94ce18b77
--- /dev/null
+++ b/javaparser-symbol-solver-logic/src/main/java/com/github/javaparser/symbolsolver/logic/FunctionalInterfaceLogic.java
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+/*
+ * Copyright 2016 Federico Tomassetti
+ *
+ * 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 com.github.javaparser.symbolsolver.logic;
+
+import com.github.javaparser.resolution.MethodUsage;
+import com.github.javaparser.resolution.declarations.ResolvedReferenceTypeDeclaration;
+import com.github.javaparser.resolution.types.ResolvedType;
+
+import java.lang.reflect.Method;
+import java.lang.reflect.Parameter;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Optional;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+/**
+ * @author Federico Tomassetti
+ */
+public final class FunctionalInterfaceLogic {
+
+    private FunctionalInterfaceLogic() {
+        // prevent instantiation
+    }
+
+    /**
+     * Get the functional method defined by the type, if any.
+     */
+    public static Optional<MethodUsage> getFunctionalMethod(ResolvedType type) {
+        if (type.isReferenceType() && type.asReferenceType().getTypeDeclaration().isInterface()) {
+            return getFunctionalMethod(type.asReferenceType().getTypeDeclaration());
+        } else {
+            return Optional.empty();
+        }
+    }
+
+    /**
+     * Get the functional method defined by the type, if any.
+     */
+    public static Optional<MethodUsage> getFunctionalMethod(ResolvedReferenceTypeDeclaration typeDeclaration) {
+        //We need to find all abstract methods
+        Set<MethodUsage> methods = typeDeclaration.getAllMethods().stream()
+                .filter(m -> m.getDeclaration().isAbstract())
+                // Remove methods inherited by Object:
+                // Consider the case of Comparator which define equals. It would be considered a functional method.
+                .filter(m -> !declaredOnObject(m))
+                .collect(Collectors.toSet());
+
+        if (methods.size() == 1) {
+            return Optional.of(methods.iterator().next());
+        } else {
+            return Optional.empty();
+        }
+    }
+
+    public static boolean isFunctionalInterfaceType(ResolvedType type) {
+        return getFunctionalMethod(type).isPresent();
+    }
+
+    private static String getSignature(Method m) {
+        return String.format("%s(%s)", m.getName(), String.join(", ", Arrays.stream(m.getParameters()).map(p -> toSignature(p)).collect(Collectors.toList())));
+    }
+
+    private static String toSignature(Parameter p) {
+        return p.getType().getCanonicalName();
+    }
+
+    private static List<String> OBJECT_METHODS_SIGNATURES = Arrays.stream(Object.class.getDeclaredMethods())
+            .map(method -> getSignature(method))
+            .collect(Collectors.toList());
+
+    private static boolean declaredOnObject(MethodUsage m) {
+        return OBJECT_METHODS_SIGNATURES.contains(m.getDeclaration().getSignature());
+    }
+}