Tommy Tynjä created BEANUTILS-470:
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Summary: Precision lost when converting BigDecimal
Key: BEANUTILS-470
URL: https://issues.apache.org/jira/browse/BEANUTILS-470
Project: Commons BeanUtils
Issue Type: Bug
Components: ConvertUtils & Converters
Affects Versions: 1.9.2
Environment: java version "1.7.0_51"
Java(TM) SE Runtime Environment (build 1.7.0_51-b13)
Java HotSpot(TM) Client VM (build 24.51-b03, mixed mode, sharing)
Reporter: Tommy Tynjä
When converting a domain specific object which extends BigDecimal to a regular
java.math.BigDecimal, precision is lost at time of conversion. A BigDecimal of
e.g. value 3200.11 will be converted to a BigDecimal with value 3200. This
happens due to org.apache.commons.beanutils.converters.NumberConverter does a
BigDecimal.valueOf(value.longValue()) at line 375 (in the current trunk). I've
created a reproducing test case which demonstrates the behavior (please see
attached patch file).
Adding the following code to NumberConverter where targetType equals BigDecimal
seems to fix this issue (and all project test cases pass):
else if (value instanceof BigDecimal) { return targetType.cast(new
BigDecimal(value.toString())); }
Adding an attachment containing a patch for the propsed solution.
Filing this bug after receiving feedback on user mailing list:
http://mail-archives.apache.org/mod_mbox/commons-user/201409.mbox/raw/%3C542B059C.40901%40oliver-heger.de%3E/
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