public static T newInstance()

in kyuubi-relocated-hive-metastore-client/src/main/java/org/apache/kyuubi/shaded/hive/metastore/utils/JavaUtils.java [60:82]

20 lines of code
6 McCabe index (conditional complexity)


  public static <T> T newInstance(Class<T> theClass, Class<?>[] parameterTypes, Object[] initArgs) {
    // Perform some sanity checks on the arguments.
    if (parameterTypes.length != initArgs.length) {
      throw new IllegalArgumentException(
          "Number of constructor parameter types doesn't match number of arguments");
    }
    for (int i = 0; i < parameterTypes.length; i++) {
      // initargs are boxed to Object, so we need to wrapper primitive types here.
      Class<?> clazz = ClassUtils.primitiveToWrapper(parameterTypes[i]);
      if (initArgs[i] != null && !(clazz.isInstance(initArgs[i]))) {
        throw new IllegalArgumentException(
            "Object : " + initArgs[i] + " is not an instance of " + clazz);
      }
    }

    try {
      Constructor<T> meth = theClass.getDeclaredConstructor(parameterTypes);
      meth.setAccessible(true);
      return meth.newInstance(initArgs);
    } catch (Exception e) {
      throw new RuntimeException("Unable to instantiate " + theClass.getName(), e);
    }
  }