Code cleanup

jscl/src/main/java/jscl/AbstractJsclArithmeticException.java

@@ -55,9 +55,8 @@ public abstract class AbstractJsclArithmeticException extends ArithmeticExceptio
 
         AbstractJsclArithmeticException that = (AbstractJsclArithmeticException) o;
 
-        if (!message.equals(that.message)) return false;
+        return message.equals(that.message);
 
-        return true;
     }
 
     @Override

jscl/src/main/java/jscl/math/function/ExtendedConstant.java

@@ -108,9 +108,8 @@ public class ExtendedConstant implements Comparable<ExtendedConstant>, IConstant
 
         ExtendedConstant that = (ExtendedConstant) o;
 
-        if (!constant.equals(that.constant)) return false;
+        return constant.equals(that.constant);
 
-        return true;
     }
 
     @Override

jscl/src/main/java/jscl/math/function/Pow.java

@@ -196,7 +196,7 @@ public class Pow extends Algebraic {
     }
 
     public Generic selfNumeric() {
-        return ((NumericWrapper) parameters[0]).pow((NumericWrapper) parameters[1]);
+        return ((NumericWrapper) parameters[0]).pow(parameters[1]);
     }
 
     public String toString() {

jscl/src/main/java/jscl/math/polynomial/TreePolynomial.java

@@ -144,7 +144,7 @@ final class TreePolynomial extends Polynomial {
             Iterator it = content.entrySet().iterator();
             while (it.hasNext()) {
                 Map.Entry e = (Map.Entry) it.next();
-                p.content.put(((Monomial) e.getKey()).multiply(monomial), (Generic) e.getValue());
+                p.content.put(((Monomial) e.getKey()).multiply(monomial), e.getValue());
             }
             p.degree = degree + monomial.degree();
             p.sugar = sugar + monomial.degree();
@@ -171,7 +171,7 @@ final class TreePolynomial extends Polynomial {
         Iterator it = content.entrySet().iterator();
         while (it.hasNext()) {
             Map.Entry e = (Map.Entry) it.next();
-            p.content.put(((Monomial) e.getKey()).divide(monomial), (Generic) e.getValue());
+            p.content.put(((Monomial) e.getKey()).divide(monomial), e.getValue());
         }
         p.degree = degree + monomial.degree();
         p.sugar = sugar + monomial.degree();

jscl/src/main/java/jscl/text/ParserUtils.java

@@ -130,7 +130,7 @@ public class ParserUtils {
     }
 
     public static <T, U> T[] copyOf(U[] array, int newLength, Class<? extends T[]> newType) {
-        T[] copy = ((Object) newType == (Object) Object[].class)
+        T[] copy = (newType == Object[].class)
                 ? (T[]) new Object[newLength]
                 : (T[]) Array.newInstance(newType.getComponentType(), newLength);
 

jscl/src/main/java/jscl/util/AbstractExpressionGenerator.java

@@ -48,7 +48,7 @@ public abstract class AbstractExpressionGenerator<T> {
         return Math.random() * MAX_VALUE;
     }
 
-    protected static enum Operation {
+    protected enum Operation {
         addition(0, "+"),
         subtraction(1, "-"),
         multiplication(2, "*"),
@@ -79,7 +79,7 @@ public abstract class AbstractExpressionGenerator<T> {
         }
     }
 
-    protected static enum Function {
+    protected enum Function {
         sin(0, "sin"),
         cos(1, "cos"),
         sqrt(2, "√"),