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From "Marco Dissel (JIRA)" <j...@apache.org>
Subject [jira] Created: (LUCENENET-26) ArgumentOutOfRangeException in FieldInfo(int fieldNumber) constructor
Date Thu, 02 Nov 2006 21:47:16 GMT
ArgumentOutOfRangeException in FieldInfo(int fieldNumber) constructor
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                 Key: LUCENENET-26
                 URL: http://issues.apache.org/jira/browse/LUCENENET-26
             Project: Lucene.Net
          Issue Type: Improvement
            Reporter: Marco Dissel
            Priority: Trivial


Another exception is raised that can be avoided.. In this case the fieldNumber = -1 resulting
in the ArgumentOutOfRangeException

This can be easily solved by checking (fieldNumber > -1 && fieldNumber < byNumber.Count)

ps. the java version has the same problem..

		/// <summary> Return the fieldinfo object referenced by the fieldNumber.</summary>
		/// <param name="fieldNumber">
		/// </param>
		/// <returns> the FieldInfo object or null when the given fieldNumber
		/// doesn't exist.
		/// </returns>
		public FieldInfo FieldInfo(int fieldNumber)
		{
			try
			{
				return (FieldInfo) byNumber[fieldNumber];
			}
			catch (System.ArgumentOutOfRangeException) // (System.IndexOutOfRangeException)
			{
				return null;
			}
		}

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