面试官：你说你懂动态代理，那你知道为什么面试官：你说你懂动态代理，那你知道为什么JDK中的代理类中的代理类
都要继承都要继承Proxy吗？吗？
之前我已经写过了关于动态代理的两篇文章，本来以为这块应该没啥问题，没想到今天又被难住了…
太难了！！！
之前文章的链接：
动态代理学习（一）自己动手模拟JDK动态代理、
动态代理学习（二）JDK动态代理源码分析
在动态代理学习（二）JDK动态代理源码分析中我已经讲JDK底层生成的字节码文件反编译成了java代码，如下：
public final class proxy extends Proxy implements MyService {
private static Method m1;
private static Method m4;
private static Method m2;
private static Method m3;
private static Method m0;
public proxy(InvocationHandler var1) throws {
super(var1);
}
public final boolean equals(Object var1) throws {
try {
return (Boolean)super.h.invoke(this, m1, new Object[]{var1});
} catch (RuntimeException | Error var3) {
throw var3;
} catch (Throwable var4) {
throw new UndeclaredThrowableException(var4);
}
}
public final void test01() throws {
try {
super.h.invoke(this, m4, (Object[])null);
} catch (RuntimeException | Error var2) {
throw var2;
} catch (Throwable var3) {
throw new UndeclaredThrowableException(var3);
}
}
public final String toString() throws {
try {
return (String)super.h.invoke(this, m2, (Object[])null);
} catch (RuntimeException | Error var2) {
throw var2;
} catch (Throwable var3) {
throw new UndeclaredThrowableException(var3);
}
}
public final void test02(String var1) throws {
try {
super.h.invoke(this, m3, new Object[]{var1});
} catch (RuntimeException | Error var3) {
throw var3;
} catch (Throwable var4) {
throw new UndeclaredThrowableException(var4);
}
}
public final int hashCode() throws {
try {
return (Integer)super.h.invoke(this, m0, (Object[])null);
} catch (RuntimeException | Error var2) {
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