java.lang.StringIndexOutOfBoundsException in ComplexFormat.parse(String source,
ParsePosition pos)
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Key: MATH-198
URL: https://issues.apache.org/jira/browse/MATH-198
Project: Commons Math
Issue Type: Bug
Affects Versions: 1.2
Environment: Ubuntu 7.10, JDK 6.0, PC
Reporter: Frederick Salardi
The parse(String source, ParsePosition pos) method in the ComplexFormat class
does not check whether the imaginary character is set or not which produces
StringIndexOutOfBoundsException in the substring method :
(line 375 of ComplexFormat)
...
// parse imaginary character
int n = getImaginaryCharacter().length();
startIndex = pos.getIndex();
int endIndex = startIndex + n;
if (source.substring(startIndex, endIndex).compareTo(
getImaginaryCharacter()) != 0) {
...
I encoutered this exception typing in a JTextFied with ComplexFormat set to
look up an AbstractFormatter.
If only the user types the imaginary part of the complex number first, he gets
this exception.
Solution: Before setting to n length of the imaginary character, check if the
source contains it. My proposal:
...
int n = 0;
if (source.contains(getImaginaryCharacter()))
n = getImaginaryCharacter().length();
...
F.S.
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