Incorrect arguments is passed to sun.misc.Perf#createLong

[Yasu]

Hi,

I'm trying to create entry from Java program to hsperfdata through 
sun.misc.PerfCounter .
However, I cannot watch the updated value in my entry through the jstat with 
interval option.

I guess this cause is that wrong arguments are passed from PerfCounter#<init> 
to Perf#createLong .

sun.misc.PerfCounter:
---------
    private PerfCounter(String name, int type) {
        this.name = name;
        ByteBuffer bb = perf.createLong(name, U_None, type, 0L);
        bb.order(ByteOrder.nativeOrder());
        this.lb = bb.asLongBuffer();
    }
---------

sun.misc.Perf:
---------
    public native ByteBuffer createLong(String name, int variability,
                                        int units, long value);
---------

"type" in constructor of PerfCounter means "variability".
So "type" should be set to 2nd argument in perf.createLong()

perf.createLong() should be called as following:
---------
        ByteBuffer bb = perf.createLong(name, type, U_None, 0L);
---------


I've applied a patch which is attached in this email, it's works fine.


Thanks,

Yasumasa

diff -r 43da85020921 src/share/classes/sun/misc/PerfCounter.java
--- a/src/share/classes/sun/misc/PerfCounter.java       Thu Apr 04 19:05:32 
2013 -0700
+++ b/src/share/classes/sun/misc/PerfCounter.java       Tue Apr 09 17:45:20 
2013 +0900
@@ -62,7 +62,7 @@
 
     private PerfCounter(String name, int type) {
         this.name = name;
-        ByteBuffer bb = perf.createLong(name, U_None, type, 0L);
+        ByteBuffer bb = perf.createLong(name, type, U_None, 0L);
         bb.order(ByteOrder.nativeOrder());
         this.lb = bb.asLongBuffer();
     }