diff --git a/src/main/java/com/github/stephengold/joltjni/enumerate/EPathRotationConstraintType.java b/src/main/java/com/github/stephengold/joltjni/enumerate/EPathRotationConstraintType.java
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+/*
+Copyright (c) 2024 Stephen Gold
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+ */
+package com.github.stephengold.joltjni.enumerate;
+
+/**
+ * Enumerate options for constraining the rotation of body2 in a
+ * {@code PathConstraint}.
+ *
+ * @author Stephen Gold sgold@sonic.net
+ */
+public enum EPathRotationConstraintType {
+    // *************************************************************************
+    // values - sequence must match "Jolt/Physics/Constaints/PathConstraint.h"
+
+    /**
+     * don't constrain body rotation
+     */
+    Free,
+    /**
+     * allow rotation only around the tangent vector (following the path)
+     */
+    ConstrainAroundTangent,
+    /**
+     * allow rotation only around the normal vector (perpendicular to the path)
+     */
+    ConstrainAroundNormal,
+    /**
+     * allow rotation only around the binormal vector (perpendicular to the
+     * path)
+     */
+    ConstrainAroundBinormal,
+    /**
+     * fully constrain rotation to the path (including its normal and tangent
+     * vectors)
+     */
+    ConstrainToPath,
+    /**
+     * fully constrain rotation to match body1
+     */
+    FullyConstrained
+}