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Gilles updated MATH-1116: ------------------------- Priority: Minor (was: Major) Fix Version/s: 3.3 Labels: javadoc (was: ) Summary: NullPointerException not advertized in Javadoc (was: NullPointerException in MultivariateVectorOptimizer.getWeight()) I don't think that it'necessary to open a new report if adding "@throws" tag would fix the issue. > NullPointerException not advertized in Javadoc > ---------------------------------------------- > > Key: MATH-1116 > URL: https://issues.apache.org/jira/browse/MATH-1116 > Project: Commons Math > Issue Type: Bug > Affects Versions: 3.2 > Environment: Mac OS 10.9, Java 6, 7 > Reporter: Cyrille Artho > Priority: Minor > Labels: javadoc > Fix For: 3.3 > > Attachments: Report2.java > > > The following statement produces a NullPointerException: > new > org.apache.commons.math3.optim.nonlinear.vector.jacobian.LevenbergMarquardtOptimizer().getWeight(); > The documentation does not seem to indicate that other data must be set > before getWeight is used (at least I could not find that information). In > this case, weightMatrix is still null because it has not been initialized. > This call should probably throw an IllegalStateException, which makes it > clear that this API usage is incorrect. > This test uses LevenbergMarquardtOptimizer but any instantiable subclass of > MultivariateVectorOptimizer probably works the same way. -- This message was sent by Atlassian JIRA (v6.2#6252)