math_70.diff

diff --git a/src/main/java/org/apache/commons/math/analysis/solvers/BisectionSolver.java b/src/main/java/org/apache/commons/math/analysis/solvers/BisectionSolver.java
index 3f669271a..24d163a81 100644
--- a/src/main/java/org/apache/commons/math/analysis/solvers/BisectionSolver.java
+++ b/src/main/java/org/apache/commons/math/analysis/solvers/BisectionSolver.java
@@ -69,6 +69,19 @@ public class BisectionSolver extends UnivariateRealSolverImpl {
     /** {@inheritDoc} */
     public double solve(final UnivariateRealFunction f, double min, double max, double initial)
         throws MaxIterationsExceededException, FunctionEvaluationException {
+        if (Boolean.parseBoolean(System.getProperty("defects4j.instrumentation.enabled"))) { // defects4j.instrumentation
+            try { // defects4j.instrumentation
+                return solve_orig(f, min, max, initial); // defects4j.instrumentation
+            } catch (NullPointerException e) { // defects4j.instrumentation
+                throw new RuntimeException("[Defects4J_BugReport_Violation]"); // defects4j.instrumentation
+            } // defects4j.instrumentation
+        } else { // defects4j.instrumentation
+            return solve_orig(f, min, max, initial); // defects4j.instrumentation
+        } // defects4j.instrumentation
+    } // defects4j.instrumentation
+
+    public double solve_orig(final UnivariateRealFunction f, double min, double max, double initial) // defects4j.instrumentation
+        throws MaxIterationsExceededException, FunctionEvaluationException { // defects4j.instrumentation
         return solve(min, max);
     }