[494320] Fix BezierCurve.getScaled() to not recurse.

- Ensured all getScaled() methods in BezierCurve to not call getScaled
recursively, but instead call scale() on the created copy.
- Added as test case that confirms the correct behavior (no stack
overflow occurs).

org.eclipse.gef4.geometry.tests/src/org/eclipse/gef4/geometry/tests/BezierCurveTests.java

@@ -271,6 +271,13 @@ public void test_getParameterAt() {
 		assertTrue(thrown);
 	}
 
+	@Test
+	public void test_getScaled() {
+		BezierCurve c0 = new BezierCurve(1, 1, 1, 10, 10, 1, 10, 10);
+		BezierCurve s0 = c0.getScaled(2, 0, 0);
+		assertEquals(new BezierCurve(2, 2, 2, 20, 20, 2, 20, 20), s0);
+	}
+
 	@Test
 	public void test_getTranslated() {
 		BezierCurve c0 = new BezierCurve(1, 1, 1, 10, 10, 1, 10, 10);

org.eclipse.gef4.geometry/src/org/eclipse/gef4/geometry/planar/BezierCurve.java

@@ -2090,32 +2090,32 @@ public BezierCurve getRotatedCW(Angle angle, Point center) {
 
 	@Override
 	public BezierCurve getScaled(double factor) {
-		return getCopy().getScaled(factor);
+		return getCopy().scale(factor);
 	}
 
 	@Override
 	public BezierCurve getScaled(double fx, double fy) {
-		return getCopy().getScaled(fx, fy);
+		return getCopy().scale(fx, fy);
 	}
 
 	@Override
 	public BezierCurve getScaled(double factor, double cx, double cy) {
-		return getCopy().getScaled(factor, cx, cy);
+		return getCopy().scale(factor, cx, cy);
 	}
 
 	@Override
 	public BezierCurve getScaled(double fx, double fy, double cx, double cy) {
-		return getCopy().getScaled(fx, fy, cx, cy);
+		return getCopy().scale(fx, fy, cx, cy);
 	}
 
 	@Override
 	public BezierCurve getScaled(double fx, double fy, Point center) {
-		return getCopy().getScaled(fx, fy, center);
+		return getCopy().scale(fx, fy, center);
 	}
 
 	@Override
 	public BezierCurve getScaled(double factor, Point center) {
-		return getCopy().getScaled(factor, center);
+		return getCopy().scale(factor, center);
 	}
 
 	/**
@@ -2668,4 +2668,4 @@ public BezierCurve translate(Point d) {
 		return translate(d.x, d.y);
 	}
 
-}
+}