FULL PRODUCT VERSION :
java version "1.5.0_05"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_05-b05)
Java HotSpot(TM) Client VM (build 1.5.0_05-b05, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [Version 5.1.2600]

A DESCRIPTION OF THE PROBLEM :
javac fails to recognize some static final int constants as a valid constant expressions. In the below source code, I have a static final int assigned the int literal 2, which compiles fine. In contrast, the static final int is assigned the constant expression derived from the length of a static final array, and javac complains with the below error message.

Error also tested on 1.5.0_04 with the same results.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Save provided source as ConstantExpressionCompileTimeError.java.
cd to directory where saved.
execute 'javac ConstantExpressionCompileTimeError.java'.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Source is JLS compliant (END_OF_WORDS is a static final int, and thus a valid constant expression for the case label). Code should compile.
ACTUAL -
see below error message.

ERROR MESSAGES/STACK TRACES THAT OCCUR :
ConstantExpressionCompileTimeError.java:8: constant expression required
                        case END_OF_WORDS:
                             ^
1 error

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
public class ConstantExpressionCompileTimeError {
static final String[] words = { "one", "two", "three" };
static final int END_OF_WORDS = words.length+1;
static final int ANOTHER_STATIC_FINAL_INT = 2;

void badSwitch( int id ) {
switch( id ) {
case END_OF_WORDS:
System.out.println( "Can't compile me." );
case ANOTHER_STATIC_FINAL_INT:
System.out.println( "No problems here." );
}
}
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
One case replace the constant expressions assigned to the static final int with a manually computed value, but this requires manual updates as code changes.