[PATCH] java.math/4428022 Float/Double.toString trailing zeros

[Keith Seitz]

Hi,

I believe the attached patch fixes the trailing zero problem mentioned
in several bugs (in addition to $SUBJECT), including 4511638, 6575880,
and 4191279.

The problem arises because sun.misc.FloatingDecimal.getChars and 
sun.misc.FloatingDecimal.dtoa disagree about when numbers are 
represented in E-form and when they are not. As a result, dtoa stuffs 
one too many numbers (a '0' in this case) into digits[], and getChars 
blindly returns them to FloatingDecimal.toJavaFormatString.

I have also attached a jtreg test for this, based on various testcases 
given in several bug requests.

Keith
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