Updated the $-util based on test results.

pom.xml

@@ -57,5 +57,12 @@
             </plugin>    
         </plugins>
     </build>
-
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.10</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 </project>

src/main/java/com/speedment/util/$.java

@@ -1,3 +1,19 @@
+/**
+ *
+ * Copyright (c) 2006-2015, Speedment, Inc. All Rights Reserved.
+ *
+ * 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.speedment.util;
 
 /**
@@ -6,36 +22,24 @@
  */
 public class $ implements CharSequence {
 
-	private static final CharSequence[] EMPTY = new CharSequence[0];
-
 	private final StringBuilder str;
 
-	private $() {
-		this(EMPTY);
+	public $() {
+		this("");
 	}
-
+	
 	public $(CharSequence... objects) {
 		str = new StringBuilder();
 		$(objects);
 	}
-
-	public final $ $(Object firstObject) {
-		str.append(firstObject);
-		return this;
-	}
-
-	public final $ $(Object firstObject, Object... theRest) {
-		$(firstObject);
-		for (Object object : theRest) {
-			$(object);
+
+	public final $ $(CharSequence... objects) {
+		for (CharSequence object : objects) {
+			str.append(object);
 		}
 		return this;
 	}
 
-	public static $ $(CharSequence... o) {
-		return new $(o);
-	}
-
 	@Override
 	public int length() {
 		return str.length();
@@ -55,4 +59,4 @@ public CharSequence subSequence(int start, int end) {
 	public String toString() {
 		return str.toString();
 	}
-}
+}

src/test/java/com/speedment/util/TestDollar.java

@@ -0,0 +1,59 @@
+/**
+ *
+ * Copyright (c) 2006-2015, Speedment, Inc. All Rights Reserved.
+ *
+ * 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.speedment.util;
+
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import static org.junit.Assert.assertEquals;
+import org.junit.Test;
+
+/**
+ *
+ * @author Duncan
+ */
+public class TestDollar {
+
+	private $ instance;
+
+	public TestDollar() {
+	}
+
+	@BeforeClass
+	public static void setUpClass() {
+	}
+
+	@AfterClass
+	public static void tearDownClass() {
+	}
+
+	@Before
+	public void setUp() {
+		instance = new $();
+	}
+
+	@After
+	public void tearDown() {
+	}
+
+	@Test
+	public void testConcatenation() {
+		instance.$("qwerty").$("asdfg", "zxcvb");
+		assertEquals("qwertyasdfgzxcvb", instance.toString());
+	}
+}