java/5943: incorrect "Can't reassign a value to the final variable" error

shroff@transeda.com shroff@transeda.com
Wed Mar 13 11:56:00 GMT 2002


>Number:         5943
>Category:       java
>Synopsis:       incorrect "Can't reassign a value to the final variable" error
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Mar 13 11:56:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Saurin Shroff
>Release:        GNU Java version 3.0.1 (sparc-sun-solaris2.8)
>Organization:
>Environment:
Sun/Solaris
>Description:
I get incorrect "Can't reassign a value to the final variable"
error for following core. Sun Java 1.1, 1.2 and 1.3 allows it.

//file: bug1.java
public abstract class bug1 {
    public static final String m_os_name = System.getProperty("os.name");
    public static final boolean m_unix_os;

    static {
	String ntos = "Windows NT";
	if (m_os_name.equals(ntos)) {
	    m_unix_os = false;
	} else {
	    m_unix_os = true;
	}
    }
}


Here is the log:
shroff@bert> gcj -v -C bug1.java
Reading specs from /usr/local/lib/gcc-lib/sparc-sun-solaris2.8/3.0.1/specs
Configured with: ../configure --with-as=/usr/local/bin/as --with-ld=/usr/local/bin/ld --enable-libgcj
Thread model: posix
gcc version 3.0.1
 /usr/local/lib/gcc-lib/sparc-sun-solaris2.8/3.0.1/jc1 bug1.java -quiet -dumpbase bug1.java -g1 -version -fencoding=UTF-8 -fsyntax-only -femit-class-files -o /dev/null
GNU Java version 3.0.1 (sparc-sun-solaris2.8)
        compiled by GNU C version 3.0.1.
bug1.java: In class `bug1':
bug1.java: In method `<clinit>()':
bug1.java:10: Can't reassign a value to the final variable `m_unix_os'.
            m_unix_os = true;
               ^
1 error


>How-To-Repeat:
See the example in the report.
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:



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