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Date: Mon, 14 Apr 2014 06:13:15 +0000 (UTC)
From: "Cyrille Artho (JIRA)" <jira@apache.org>
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Subject: [jira] [Updated] (MATH-1117) twod.PolygonsSet.getSize produces
 NullPointerException if BSPTree has no nodes
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     [ https://issues.apache.org/jira/browse/MATH-1117?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Cyrille Artho updated MATH-1117:
--------------------------------

    Attachment: Report3_1.java

Just calling the constructor with the right numbers produces the same effect, for example this one-liner:

new org.apache.commons.math3.geometry.euclidean.twod.PolygonsSet(0.0d, 0.0d, 0.0d, 10.3206397147574d);

> twod.PolygonsSet.getSize produces NullPointerException if BSPTree has no nodes
> ------------------------------------------------------------------------------
>
>                 Key: MATH-1117
>                 URL: https://issues.apache.org/jira/browse/MATH-1117
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 3.2
>         Environment: Mac OS 10.9, Java 6, 7
>            Reporter: Cyrille Artho
>         Attachments: Report3.java, Report3_1.java
>
>
> org.apache.commons.math3.geometry.euclidean.twod.PolygonsSet.getSize() uses a tree internally:
> final BSPTree<Euclidean2D> tree = getTree(false);
> However, if that tree contains no data, it seems that the reference returned is null, which causes a subsequent NullPointerException.
> Probably an exception with a message ("tree has no data") would clarify that this is an API usage error.



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