Warnings for "possible this escape" similar to javac

[datho7561]

Consider the following class:

public class HelloWorld {

	public static void main(String... args) {
		System.out.println(new Rectangle(4, 3));
	}

	public static class Rectangle {
		int width, height;
		transient int area = -1;
		public Rectangle (int width, int height) {
			this.width = width;
			this.height = height;
			this.precalculateArea();
		}
		public void precalculateArea() {
			this.area = width * height;
		}
		@Override
		public String toString() {
			return "area: " + area;
		}
	}
}

When compiling with javac -Xlint:all HelloWorld.java, javac produces the following warning:

HelloWorld.java:13: warning: [this-escape] possible 'this' escape before subclass is fully initialized
                        this.precalculateArea();
                                             ^
1 warning

My understanding is that this check is important for the upcoming value classes JEP. I think it would be nice if JDT also reported this warning.