diff --git a/querydsl-core/src/main/java/com/querydsl/core/types/ConstructorExpression.java b/querydsl-core/src/main/java/com/querydsl/core/types/ConstructorExpression.java
index af9d6aa3c..2f27fb9a5 100644
--- a/querydsl-core/src/main/java/com/querydsl/core/types/ConstructorExpression.java
+++ b/querydsl-core/src/main/java/com/querydsl/core/types/ConstructorExpression.java
@@ -20,7 +20,6 @@ import java.lang.reflect.InvocationTargetException;
 import java.util.Arrays;
 import java.util.List;
 
-import javax.annotation.Nullable;
 import javax.annotation.concurrent.Immutable;
 
 import com.google.common.base.Function;
@@ -62,10 +61,9 @@ public class ConstructorExpression<T> extends FactoryExpressionBase<T> {
 
     private final Class<?>[] parameterTypes;
 
-    @Nullable
-    private transient Constructor<?> constructor;
+    private final transient Constructor<?> constructor;
 
-    private transient Iterable<Function<Object[], Object[]>> transformers;
+    private final transient Iterable<Function<Object[], Object[]>> transformers;
 
     protected ConstructorExpression(Class<? extends T> type, Expression<?>... args) {
         this(type, getParameterTypes(args), ImmutableList.copyOf(args));
@@ -77,8 +75,14 @@ public class ConstructorExpression<T> extends FactoryExpressionBase<T> {
 
     protected ConstructorExpression(Class<? extends T> type, Class<?>[] paramTypes, ImmutableList<Expression<?>> args) {
         super(type);
-        this.parameterTypes = getConstructorParameters(type, paramTypes).clone();
-        this.args = args;
+        try {
+            this.parameterTypes = getConstructorParameters(type, paramTypes).clone();
+            this.args = args;
+            this.constructor = getConstructor(getType(), parameterTypes);
+            this.transformers = getTransformers(constructor);
+        } catch (NoSuchMethodException e) {
+            throw new IllegalArgumentException(e);
+        }
     }
 
     /**
@@ -128,18 +132,12 @@ public class ConstructorExpression<T> extends FactoryExpressionBase<T> {
     @SuppressWarnings("unchecked")
     public T newInstance(Object... args) {
         try {
-            if (constructor == null) {
-                constructor = getConstructor(getType(), parameterTypes);
-                transformers = getTransformers(constructor);
-            }
             for (Function<Object[], Object[]> transformer : transformers) {
                 args = transformer.apply(args);
             }
             return (T) constructor.newInstance(args);
         } catch (SecurityException e) {
             throw new ExpressionException(e.getMessage(), e);
-        } catch (NoSuchMethodException e) {
-            throw new ExpressionException(e.getMessage(), e);
         } catch (InstantiationException e) {
             throw new ExpressionException(e.getMessage(), e);
         } catch (IllegalAccessException e) {