[DrJava] [ drjava-Bugs-1201699 ] final instance constants not constant

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Bugs item #1201699, was opened at 2005-05-13 17:36
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=438935&aid=1201699&group_id=44253

Category: Interactions
Group: Annoying
Status: Open
Resolution: None
Priority: 5
Submitted By: rlh (rhalterman)
Assigned to: Nobody/Anonymous (nobody)
Summary: final instance constants not constant

Initial Comment:

DrJava 20050519-0024

Windows, Linux, and Mac OS X versions

Create this class and compile it:

public class FinalTest {    
    public final double PI = 3.14159;
}

The following Interactions sequence behaves consistently on all 
the platforms:

> FinalTest f = new FinalTest();
> f.PI = 2.5;
> f.PI
2.5


But, DrJava's compiler correctly disallows the following code:

public class TestFinalTest {
    public static void main(String[] args) {
        FinalTest f = new FinalTest();
        f.PI = 2.5;
    }
}
1 error found:
File: TestFinalTest.java  [line: 4]
Error: cannot assign a value to final variable PI


Note: If the constant is static (which is ordinarily how constants 
are handled), the interactions pane WILL throw an exception about 
the field being final:

public class FinalTest {
    public static final double PI = 3.14159;
}

> FinalTest f = new FinalTest();
> f.PI = 2.5;
IllegalAccessException: Field is final
  at sun.reflect. ... (exception report continues)


  

DrJava 20050519-0024

Linux (Debian Woody) and Windows (XP Professional, SP2):
java version "1.5.0_03"
Java(TM) 2 Runtime Environment, Standard Edition (build 
1.5.0_03-b07)
Java HotSpot(TM) Client VM (build 1.5.0_03-b07, mixed mode, 
sharing)

Mac OS X (Tiger--10.4):
java version "1.5.0_02"
Java(TM) 2 Runtime Environment, Standard Edition (build 
1.5.0_02-56)
Java HotSpot(TM) Client VM (build 1.5.0_02-36, mixed mode, 
sharing)


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https://sourceforge.net/tracker/?func=detail&atid=438935&aid=1201699&group_id=44253