Cyrille Artho created MATH-1224: ----------------------------------- Summary: NullPointerExceptions not documented in some classes Key: MATH-1224 URL: https://issues.apache.org/jira/browse/MATH-1224 Project: Commons Math Issue Type: Bug Affects Versions: 3.5, 3.3 Environment: Mac OS X, Java 6-8 Reporter: Cyrille Artho Priority: Minor
In general, the need to initialize newly constructed objects with more data is now documented, but we have found two cases where a NullPointerException is thrown because of missing data. The documentation should be updated to reflect this. This is similar to issues report in MATH-1116 but concerns classes that are not going to be deprecated (as far as we can tell). I have previously posted this as a new comment on issue 1116, but that comment has not elicited any response. As the original issue is one year old, I post this bug as a new issue. Below is the code that produces the two cases: org.apache.commons.math3.ode.nonstiff.HighamHall54Integrator var1 = new org.apache.commons.math3.ode.nonstiff.HighamHall54Integrator(0.0d, 0.0d, 0.0d, 0.0d); double[] var2 = new double[] { 0.0d }; var1.computeDerivatives(0.0d, var2, var2); // NPE new org.apache.commons.math3.stat.correlation.SpearmansCorrelation().getCorrelationMatrix(); // NPE -- This message was sent by Atlassian JIRA (v6.3.4#6332)