Description Darin Wright 2006-08-31 15:14:08 EDT

I20060830

There have been 3 consistent test failures in the nightly and integration builds on linux for Java 5.0. The 3 failing tests are all attempting to hit a breakpoint in a finally block, but the breakpoint is never hit. The same thing happens when debugging the following code with project compiler settings set to 5.0.


------------------------
import java.util.Vector;


public class Finally {
	
	public static void main(String[] args) {
		Vector v = new Vector();
		try {
			v.get(24);
		} catch (ArrayIndexOutOfBoundsException e) {
			
		} finally {
			System.out.println("finally 1"); // BREAKPOINT
		}
	}

}
--------------------------

Notes:

* It appears that the breakpoint gets installed properly: the line numbers from javap show to locations for line 13 (println above). We install breakpoint requests for each location.
* When I compile the same class with Sun's javac, I get different line number mappings, but then the brealpoint *is* hit. It is expected that different compilers will have different line mappings, but since the breakpoint is hit using the javac result, I wonder if this is a compiler bug.

-------------------------------------------
The line mappings when using the Eclispe compiler are:

Compiled from "Finally.java"
public class Finally extends java.lang.Object{
public Finally();
  LineNumberTable:
   line 4: 0
  LocalVariableTable:
   Start  Length  Slot  Name   Signature
   0      5      0    this       LFinally;

public static void main(java.lang.String[]);
  LineNumberTable:
   line 7: 0
   line 9: 8
   line 10: 18
   line 12: 22
   line 13: 23
   line 14: 31
   line 13: 33
   line 12: 44
   line 15: 52
  LocalVariableTable:
   Start  Length  Slot  Name   Signature
   0      53      0    args       [Ljava/lang/String;
   8      45      1    v       Ljava/util/Vector;

}



------------------------------------------
The line mappings when using javac are:

sh-3.00$ ~/jdk1.5.0_08/bin/javap -classpath . -l  Finally
Compiled from "Finally.java"
public class Finally extends java.lang.Object{
public Finally();
  LineNumberTable:
   line 4: 0

public static void main(java.lang.String[]);
  LineNumberTable:
   line 7: 0
   line 9: 8
   line 13: 15
   line 14: 23
   line 10: 26
   line 13: 27
   line 14: 35
   line 13: 38
   line 14: 47
   line 15: 49

}