### Question:
Transform implements Cloneable, Savable, Externalizable, ReadOnlyTransform, Poolable { @Override public Vector3 applyInverseVector(final Vector3 vector) { MathUtils.checkArgumentNotNull(vector, "vector"); if (_identity) { return vector; } if (_rotationMatrix) { _matrix.applyPre(vector, vector); if (_uniformScale) { vector.divideLocal(_scale.getX()); } else { vector.setX(vector.getX() / _scale.getX()); vector.setY(vector.getY() / _scale.getY()); vector.setZ(vector.getZ() / _scale.getZ()); } } else { final Matrix3 invertedMatrix = _matrix.invert(Matrix3.fetchTempInstance()); invertedMatrix.applyPost(vector, vector); Matrix3.releaseTempInstance(invertedMatrix); } return vector; } Transform();  Transform(final ReadOnlyTransform source); protected  Transform(final ReadOnlyMatrix3 matrix, final ReadOnlyVector3 scale, final ReadOnlyVector3 translation,
    final boolean identity, final boolean rotationMatrix, final boolean uniformScale); @Override ReadOnlyMatrix3 getMatrix(); @Override ReadOnlyVector3 getTranslation(); @Override ReadOnlyVector3 getScale(); @Override boolean isIdentity(); @Override boolean isRotationMatrix(); @Override boolean isUniformScale(); Transform setIdentity(); Transform setRotation(final ReadOnlyMatrix3 rotation); Transform setRotation(final ReadOnlyQuaternion rotation); Transform setTranslation(final ReadOnlyVector3 translation); Transform setTranslation(final double x, final double y, final double z); Transform setScale(final ReadOnlyVector3 scale); Transform setScale(final double x, final double y, final double z); Transform setScale(final double uniformScale); Transform set(final ReadOnlyTransform source); Transform translate(final double x, final double y, final double z); Transform translate(final ReadOnlyVector3 vec); @Override Vector3 applyForward(final Vector3 point); @Override Vector3 applyForward(final ReadOnlyVector3 point, final Vector3 store); @Override Vector3 applyInverse(final Vector3 point); @Override Vector3 applyInverse(final ReadOnlyVector3 point, final Vector3 store); @Override Vector3 applyForwardVector(final Vector3 vector); @Override Vector3 applyForwardVector(final ReadOnlyVector3 vector, final Vector3 store); @Override Vector3 applyInverseVector(final Vector3 vector); @Override Vector3 applyInverseVector(final ReadOnlyVector3 vector, final Vector3 store); @Override Transform multiply(final ReadOnlyTransform transformBy, final Transform store); @Override Transform invert(final Transform store); @Override Matrix4 getHomogeneousMatrix(final Matrix4 store); @Override void getGLApplyMatrix(final DoubleBuffer store); @Override void getGLApplyMatrix(final FloatBuffer store); Transform fromHomogeneousMatrix(final ReadOnlyMatrix4 matrix); static boolean isValid(final ReadOnlyTransform transform); @Override String toString(); @Override int hashCode(); @Override boolean equals(final Object o); @Override boolean strictEquals(final Object o); @Override Transform clone(); @Override Class<? extends Transform> getClassTag(); @Override void write(final OutputCapsule capsule); @Override void read(final InputCapsule capsule); @Override void readExternal(final ObjectInput in); @Override void writeExternal(final ObjectOutput out); final static Transform fetchTempInstance(); final static void releaseTempInstance(final Transform trans); static final double ALLOWED_DEVIANCE; static final ReadOnlyTransform IDENTITY; }### Answer:
@Test(expected = IllegalArgumentException.class) public void testApplyFail4() { final Transform trans = new Transform(); trans.applyInverseVector(null); }