java如何使用类型。是否可以正确识别？

Question

我对来自注释处理API的^{}有问题。我有两个变量：

TypeMirror someType; // with some value
TypeMirror objectType = elementUtils.getTypeElement("java.lang.Object").asType();

当我执行typeUtils.isAssignable(someType, objectType)时，它返回false

为什么会发生这种情况？任何类型都可以分配给Object。我误解了什么

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注意：isAssignable使用此技巧返回预期值：

TypeElement typeElement = (TypeElement) typeUtils.asElement(someType);
String qualifiedName = typeElement.getQualifiedName().toString();
TypeMirror copy = elementUtils.getTypeElement(qualifiedName).asType();
typeUtils.isAssignable(copy, objectType); // returns true

Answer 1

Types.isAssignable()

Determines if the class or interface represented by this Class object is either the same as, or is a superclass or superinterface of, the class or interface represented by the specified Class parameter. It returns true if so; otherwise it returns false. If this Class object represents a primitive type, this method returns true if the specified Class parameter is exactly this Class object; otherwise it returns false.