NullPointerException in SimplexTableau.initialize
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Key: MATH-290
URL: https://issues.apache.org/jira/browse/MATH-290
Project: Commons Math
Issue Type: Bug
Affects Versions: 2.0
Environment: Java 1.6.0_13 on Windows XP 32-bit
Reporter: Andrea
SimplexTableau throws a NullPointerException when no solution can be found
instead of a NoFeasibleSolutionException
Here is the code that causes the NullPointerException:
LinearObjectiveFunction f = new LinearObjectiveFunction(new double[] { 1, 5 },
0 );
Collection<LinearConstraint> constraints = new ArrayList<LinearConstraint>();
constraints.add(new LinearConstraint(new double[] { 2, 0 }, Relationship.GEQ,
-1.0));
RealPointValuePair solution = new SimplexSolver().optimize(f, constraints,
GoalType.MINIMIZE, true);
Note: Tested both with Apache Commons Math 2.0 release and SVN trunk
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