Add reflection methods for Constructor

common/src/main/java/org/zhdev/util/ReflectionUtils.java

@@ -5,7 +5,9 @@ import org.zhdev.reflection.MethodSearcher;
 
 import java.io.File;
 import java.io.IOException;
+import java.lang.reflect.Constructor;
 import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.util.Enumeration;
 import java.util.function.Consumer;
@@ -25,6 +27,12 @@ public class ReflectionUtils {
         return field;
     }
 
+    private static Constructor<?> getConstructor0(Class<?> type, Class<?>... parameterTypes) throws NoSuchMethodException {
+        Constructor<?> constructor = type.getDeclaredConstructor(parameterTypes);
+        constructor.setAccessible(true);
+        return constructor;
+    }
+
     private static boolean compareParameters(Class<?>[] required, Class<?>... parameters) {
         if (required.length != parameters.length) {
             return false;
@@ -174,6 +182,22 @@ public class ReflectionUtils {
         }
     }
 
+    public static Constructor<?> getConstructor(Class<?> type, Class<?>... parameterTypes) throws NoSuchMethodError {
+        try {
+            return getConstructor0(type, parameterTypes);
+        } catch (NoSuchMethodException e) {
+            throw new NoSuchMethodError(e.getMessage());
+        }
+    }
+
+    public static Object newInstance(Constructor<?> constructor, Object... args) throws NoSuchMethodError {
+        try {
+            return constructor.newInstance(args);
+        } catch (ReflectiveOperationException e) {
+            throw new IllegalStateException(e);
+        }
+    }
+
     public static void forEachClass(ClassLoader loader, JarFile jarFile, String packageName, Consumer<Class<?>> consumer) {
         for (Enumeration<JarEntry> entry = jarFile.entries(); entry.hasMoreElements(); ) {
             JarEntry jarEntry = entry.nextElement();