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  1. Commons Math
  2. MATH-1162

contains(Region<S> region) method of AbstractRegion throws NullPointerException exception

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 3.3
    • 3.4
    • None
    • None
    • tested on windows 8 and heroku

    Description

      the contains call on org.apache.commons.math3.geometry.partitioning.AbstractRegion throws an exception in the sample below:

      import org.apache.commons.math3.geometry.partitioning.Region;
      import org.apache.commons.math3.geometry.euclidean.twod.Vector2D;
      import org.apache.commons.math3.geometry.euclidean.twod.Euclidean2D;
      import org.apache.commons.math3.geometry.euclidean.twod.PolygonsSet;
      
      class Test {
          public static void main(String[] args) {
      	Region<Euclidean2D> p = new PolygonsSet( 1.0e-10, new Vector2D(4.267199999996532, -11.928637756014894),
      	                                                  new Vector2D(4.267200000026445, -14.12360595809307), 
      	                                                  new Vector2D(9.144000000273694, -14.12360595809307), 
      	                                                  new Vector2D(9.144000000233383, -11.928637756020067));
      
      	Region<Euclidean2D> w = new PolygonsSet( 1.0e-10,  new Vector2D(2.56735636510452512E-9, -11.933116461089332),
      	                                                   new Vector2D(2.56735636510452512E-9, -12.393225665247766), 
      	                                                   new Vector2D(2.56735636510452512E-9, -27.785625665247778), 
      	                                                   new Vector2D(4.267200000030211, -27.785625665247778), 
      	                                                   new Vector2D(4.267200000030211, -11.933116461089332));
      
      	p.contains(w);
          }
      }
      

      the exception thrown is:

      Exception in thread "main" java.lang.NullPointerException
              at org.apache.commons.math3.geometry.partitioning.AbstractRegion.isEmpty(AbstractRegion.java:263)
              at org.apache.commons.math3.geometry.partitioning.AbstractRegion.isEmpty(AbstractRegion.java:267)
              at org.apache.commons.math3.geometry.partitioning.AbstractRegion.isEmpty(AbstractRegion.java:267)
              at org.apache.commons.math3.geometry.partitioning.AbstractRegion.isEmpty(AbstractRegion.java:267)
              at org.apache.commons.math3.geometry.partitioning.AbstractRegion.isEmpty(AbstractRegion.java:267)
              at org.apache.commons.math3.geometry.partitioning.AbstractRegion.isEmpty(AbstractRegion.java:267)
              at org.apache.commons.math3.geometry.partitioning.AbstractRegion.isEmpty(AbstractRegion.java:267)
              at org.apache.commons.math3.geometry.partitioning.AbstractRegion.isEmpty(AbstractRegion.java:251)
              at org.apache.commons.math3.geometry.partitioning.AbstractRegion.contains(AbstractRegion.java:295)
              at Test.main(test.java:19)
      

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              Updated:
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