add integration test profile

spring-mvc-java/src/main/java/com/baeldung/circulardependency/CircularDependencyB.java

@@ -0,0 +1,22 @@
+package com.baeldung.circulardependency;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+@Component
+public class CircularDependencyB {
+
+	private CircularDependencyA circA;
+
+	private String message = "Hi!";
+
+	@Autowired
+	public void setCircA(final CircularDependencyA circA) {
+		this.circA = circA;
+	}
+
+	public String getMessage() {
+		return message;
+	}
+
+}