[ cobertura-Bugs-2015513 ] Inline appends to StringBuffer throw off coverage

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Bugs item #2015513, was opened at 2008-07-10 23:43
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: Inline appends to StringBuffer throw off coverage

Initial Comment:
I have some code that builds a string in a buffer:

StringBuilder b = new StringBuilder();
b.append(a).append(b).append(c);

My cobertura report was showing 0 coverage in seemingly random places in the file, including in blank lines between methods and in comments.

By trial and error I discovered that unchaining the appends makes the report accurate:

StringBuilder b = new StringBuilder();
b.append(a);
b.append(b);
b.append(c);

This is with Cobertura 1.9 executed via Maven2 plugin

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=720015&aid=2015513&group_id=130558