do so: 19 class SpecificationLikeTests { @Nested @DisplayName("a calculator") inner class Calculator { val calculator = SampleCalculator() @Test fun `should return the result of of adding the first number to the second number`() { val sum = calculator.sum(2, 4) assertEquals(6, sum) } @Test fun `should return the result of subtracting the second number number from the first number`() { val subtract = calculator.subtract(4, 2) assertEquals(2, subtract) } } } WebTestClient Type Inference Issue in Kotlin Due to a type inference issue

do so: 19 class SpecificationLikeTests { @Nested @DisplayName("a calculator") inner class Calculator { val calculator = SampleCalculator() @Test fun `should return the result of of adding the first number to the second number`() { val sum = calculator.sum(2, 4) assertEquals(6, sum) } @Test fun `should return the result of subtracting the second number number from the first number`() { val subtract = calculator.subtract(4, 2) assertEquals(2, subtract) } } } WebTestClient Type Inference Issue in Kotlin Due to a type inference issue

Framework (2.0.8) 427 public interface Calculator { int add(int x, int y); } Here is an implementation of the Calculator interface in Groovy. // from the file 'calculator.groovy' package org.springframework GroovyCalculator implements Calculator { int add(int x, int y) { x + y } } <-- from the file 'beans.xml' --> Lastly ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml"); Calculator calc = (Calculator) ctx.getBean("calculator"); System.out.println(calc.add(2, 8)); } } The resulting output from running

springframework.scripting; public interface Calculator { int add(int x, int y); } Here is an implementation of the Calculator interface in Groovy. // from the file 'calculator.groovy' package org.springframework GroovyCalculator implements Calculator { int add(int x, int y) { x + y } } <-- from the file 'beans.xml' --> Lastly ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml"); Calculator calc = (Calculator) ctx.getBean("calculator"); System.out.println(calc.add(2, 8)); } } The resulting output from running

springframework.scripting; public interface Calculator { int add(int x, int y); } Here is an implementation of the Calculator interface in Groovy. // from the file 'calculator.groovy' package org.springframework GroovyCalculator implements Calculator { int add(int x, int y) { x + y } } <-- from the file 'beans.xml' --> Lastly ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml"); Calculator calc = (Calculator) ctx.getBean("calculator"); System.out.println(calc.add(2, 8)); } } The resulting output from running

Framework (2.0.7) 427 public interface Calculator { int add(int x, int y); } Here is an implementation of the Calculator interface in Groovy. // from the file 'calculator.groovy' package org.springframework GroovyCalculator implements Calculator { int add(int x, int y) { x + y } } <-- from the file 'beans.xml' --> Lastly ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml"); Calculator calc = (Calculator) ctx.getBean("calculator"); System.out.println(calc.add(2, 8)); } } The resulting output from running

Framework (2.0.5) 424 public interface Calculator { int add(int x, int y); } Here is an implementation of the Calculator interface in Groovy. // from the file 'calculator.groovy' package org.springframework GroovyCalculator implements Calculator { int add(int x, int y) { x + y } } <-- from the file 'beans.xml' --> Lastly ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml"); Calculator calc = (Calculator) ctx.getBean("calculator"); System.out.println(calc.add(2, 8)); } } The resulting output from running

Framework (2.0.6) 424 public interface Calculator { int add(int x, int y); } Here is an implementation of the Calculator interface in Groovy. // from the file 'calculator.groovy' package org.springframework GroovyCalculator implements Calculator { int add(int x, int y) { x + y } } <-- from the file 'beans.xml' --> Lastly ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml"); Calculator calc = (Calculator) ctx.getBean("calculator"); System.out.println(calc.add(2, 8)); } } The resulting output from running

springframework.scripting; public interface Calculator { int add(int x, int y); } Here is an implementation of the Calculator interface in Groovy. // from the file 'calculator.groovy' package org.springframework GroovyCalculator implements Calculator { int add(int x, int y) { x + y } } <-- from the file 'beans.xml' --> Lastly ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml"); Calculator calc = (Calculator) ctx.getBean("calculator"); System.out.println(calc.add(2, 8)); } } The resulting output from running

springframework.scripting; public interface Calculator { int add(int x, int y); } Here is an implementation of the Calculator interface in Groovy. // from the file 'calculator.groovy' package org.springframework GroovyCalculator implements Calculator { int add(int x, int y) { x + y } Dynamic language support Spring Framework (2.5.6) 513 } <-- from the file 'beans.xml' --> Lastly, here is a small application to exercise the above configuration. package org.springframework.scripting; import org.springframework.context.ApplicationContext;