Removed jerry-core requirements

pom.xml

@@ -1,4 +1,5 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 
 	<modelVersion>4.0.0</modelVersion>
@@ -55,7 +56,14 @@
 		<dependency>
 			<groupId>com.sangupta</groupId>
 			<artifactId>jerry-core</artifactId>
-			<version>3.0.0</version>
+			<version>3.0.1</version>
+			<scope>test</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>com.google.code.findbugs</groupId>
+			<artifactId>jsr305</artifactId>
+			<version>3.0.2</version>
 		</dependency>
 	</dependencies>
 

src/main/java/com/sangupta/colors/Swatch.java

@@ -22,13 +22,11 @@
 import java.util.ArrayList;
 import java.util.List;
 
-import com.sangupta.jerry.util.AssertUtils;
-
 /**
  * A swatch is an active palette of colors.
  * 
  * @author sangupta
- *
+ * @since 1.0.0
  */
 public class Swatch<T extends ColorModel> {
 
@@ -51,7 +49,7 @@ public Swatch() {
 	 * @param colors
 	 */
 	public Swatch(T[] colors) {
-		if(AssertUtils.isEmpty(colors)) {
+		if(colors == null || colors.length == 0) {
 			return;
 		}