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Groups > comp.lang.java.programmer > #37443

Re: Are Outer Classes Loaded Lazily?

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Original question was for
getEnclosingClass(), but:

     public Class<?> getEnclosingClass() throws SecurityException {
         Class.EnclosingMethodInfo var1 = this.getEnclosingMethodInfo();
         Class var2;
         if(var1 == null) {
             var2 = this.getDeclaringClass();
         [...]
     }

     public native Class<?> getDeclaringClass();

The above is OpenJDK 1.6, in OpenJDK 1.8, there is native
getDeclaringClass0() and some extra package checks.

j4n bur53 schrieb:
> But not all class properties. For example the super class
> is loaded before the class. So this API method of Class:
>
>      getSuperclass()
>
> is not lazy. Now question is whether for named nested
> classes, that are static (or non-static without references
> to the outer class), whether this method, is lazy or not:
>
>      getDeclaringClass()
>
> lewbloch@gmail.com schrieb:
>> Pretty much all classes in Java are lazily loaded and lazily initialized.
>>
>> Since an inner class by definition in Java is non-static, I don't know
>> how you could get the inner class without initializing the outer, but
>> I have yet to peruse the JLS to explore that.
>>
>> For static nested classes it makes sense that getting the enclosing
>> class would load the class, but since that's not one of the actions
>> that initializes a class it would be improper for that to initialize
>> the outer class.
>>
>

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Thread

Are Outer Classes Loaded Lazily? j4n bur53 <janburse@fastmail.fm> - 2017-09-20 19:23 +0200
  Re: Are Outer Classes Loaded Lazily? Eric Sosman <esosman@comcast-dot-net.invalid> - 2017-09-20 17:45 -0400
    Re: Are Outer Classes Loaded Lazily? j4n bur53 <janburse@fastmail.fm> - 2017-09-21 01:18 +0200
      Re: Are Outer Classes Loaded Lazily? lewbloch@gmail.com - 2017-09-20 17:28 -0700
        Re: Are Outer Classes Loaded Lazily? j4n bur53 <janburse@fastmail.fm> - 2017-09-21 09:29 +0200
          Re: Are Outer Classes Loaded Lazily? j4n bur53 <janburse@fastmail.fm> - 2017-09-21 09:40 +0200
          Re: Are Outer Classes Loaded Lazily? lewbloch@gmail.com - 2017-09-21 11:44 -0700
  Re: Are Outer Classes Loaded Lazily? Marcel Mueller <news.5.maazl@spamgourmet.org> - 2017-09-21 21:18 +0200
    Re: Are Outer Classes Loaded Lazily? Eric Sosman <esosman@comcast-dot-net.invalid> - 2017-09-21 16:20 -0400
      Re: Are Outer Classes Loaded Lazily? j4n bur53 <janburse@fastmail.fm> - 2017-09-22 11:12 +0200
        Re: Are Outer Classes Loaded Lazily? Joshua Cranmer 🐧 <Pidgeot18@verizon.invalid> - 2017-09-22 15:55 -0400
          Re: Are Outer Classes Loaded Lazily? j4n bur53 <janburse@fastmail.fm> - 2017-09-23 18:33 +0200
    Re: Are Outer Classes Loaded Lazily? lewbloch@gmail.com - 2017-09-22 13:48 -0700
      Re: Are Outer Classes Loaded Lazily? Joshua Cranmer 🐧 <Pidgeot18@verizon.invalid> - 2017-09-22 23:46 -0400
        Re: Are Outer Classes Loaded Lazily? lewbloch@gmail.com - 2017-09-25 13:23 -0700
      Re: Are Outer Classes Loaded Lazily? j4n bur53 <janburse@fastmail.fm> - 2017-09-24 17:39 +0200
        Re: Are Outer Classes Loaded Lazily? Eric Sosman <esosman@comcast-dot-net.invalid> - 2017-09-25 07:38 -0400
        Re: Are Outer Classes Loaded Lazily? lewbloch@gmail.com - 2017-09-25 13:25 -0700

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