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A java question, please help if you have the time

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OGroeger:
Btw, there a lot of useful classes which can be very helpful. What i use very much is the Apache commons project, in particular the lang project (JavaDoc) which contains "Utils" packages, e.g. ArrayUtils which has a toObject() method that converts an int[] to Integer[].
 
The package that i use on every Project (when possible) is StringUtils. I coundn't live without StringUtils.defaultString() and StringUtils.isBlank().

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