A Weird Exception When Using Java's BigDecimal, java.lang.ArithmeticException: Rounding necessary

A Weird Exception When Using Java’s BigDecimal, java.lang.ArithmeticException: Rounding necessary

I found this weird exception when im trying to convert double values to BigDecimal,

java.lang.ArithmeticException: Rounding necessary
	at java.math.BigDecimal.divideAndRound(BigDecimal.java:1439)
	at java.math.BigDecimal.setScale(BigDecimal.java:2394)
	at java.math.BigDecimal.setScale(BigDecimal.java:2437)

This is my java code

BigDecimal bgAvg = new BigDecimal(0);
bgAvg = bgAvg.add(new BigDecimal(myDoubleValue).setScale(2));

Somehow the error is gone after i changed my code into this

BigDecimal bgAvg = new BigDecimal(0);
bgAvg = bgAvg.add(BigDecimal.valueOf(myDoubleValue).setScale(2));

Hope it helped others, have fun with Java

edwin

Integrating DMN and Business Process on Red Hat Process Automation Manager

Securing Quarkus Metric API

A Simple Load Testing Pipeline on Openshift 4 and Jenkins

2 Comments

Hi, I'm also encountering the java.lang.ArithmeticException: Rounding necessary in one of the webdynpro java applications. The full exception thread is as follows: java.lang.ArithmeticException: Rounding necessary atjava.math.BigDecimal.divideAndRound(BigDecimal.java:1439) at java.math.BigDecimal.setScale(BigDecimal.java:2390) at java.math.BigDecimal.setScale(BigDecimal.java:2323) at com.boots.devc.articlesearchdisplay.wd.comp.articlesearchcomp.ArticleSearchComp.setPurchasingTupleValues(ArticleSearchComp.java:10299) at com.boots.devc.articlesearchdisplay.wd.comp.articlesearchcomp.wdp.InternalArticleSearchComp.setPurchasingTupleValues(InternalArticleSearchComp.java:2363) ... 64 more Please let me know how this issue is resolved. Thanks, Rohit

edwin

about 6 years ago

Hi Rohit, too bad i cant help you too much because i need to see whats your sourcecode is :(