[classlib][luni] bug-to-bug compatibility java.util.Formatter.Formatter(Appendable a)
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Key: HARMONY-985
URL: http://issues.apache.org/jira/browse/HARMONY-985
Project: Harmony
Issue Type: Bug
Components: Non-bug differences from RI
Reporter: Richard Liang
For the constructor java.util.Formatter.Formatter(Appendable a):
If we pass a null to j.u.Formatter.Formatter(Appendable a), when we try to get the destination
of the formatter's output by calling formatter.out(), RI will thrown a java.util.FormatterClosedException.
But according to the specification, the destination should be a StringBuilder.
Harmony complies with the specification, but RI breaks the specification.
References:
1) Specification:
public Formatter(Appendable a)
Constructs a new formatter with the specified destination.
The locale used is the default locale for this instance of the Java virtual machine.
Parameters:
a - Destination for the formatted output. If a is null then a StringBuilder will be
created.
2) The following test passes on Harmony, but fails on RI.
public void test_ConstructorLjava_lang_Appendable() {
Formatter formatter = new Formatter((Appendable) null);
Appendable out = formatter.out();
assertTrue(out instanceof StringBuilder);
}
3) Discussion in harmony-dev: http://www.mail-archive.com/harmony-dev@incubator.apache.org/msg09376.html
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