samples/boot/oauth2resourceserver-multitenancy/src/main/java/org/springframework/boot/env/MockWebServerPropertySource.java
private String getUrl() {
		MockWebServer mockWebServer = getSource();
		if (!this.started) {
			intializeMockWebServer(mockWebServer);
		}
		String url = mockWebServer.url("").url().toExternalForm();
		return url.substring(0, url.length() - 1);
	}
private String getUrl() {
		MockWebServer mockWebServer = getSource();
		if (!this.started) {
			intializeMockWebServer(mockWebServer);
		}
		String url = mockWebServer.url("").url().toExternalForm();
		return url.substring(0, url.length() - 1);
	}
Get's the URL (i.e. "http://localhost:123456")
@return