Groovy动态语言 运行在JVM中的动态语言 可以方便的处理业务逻辑变化大的业务

				package groovy.bugs
				
				class Groovy779_Bug extends GroovyTestCase {
				
				    def boolean exceptionCalled = false
				    def boolean finallyCalled = false
				
				    public static void main(String[] args) {
				        Groovy779_Bug app = new Groovy779_Bug()
				        app.testFieldProperty()
				        app.testBeanProperty()
				        app.testAutoboxingProperty()
				    }
				
				    public void testFieldProperty() {
				
				        try {
				            def p = new Groovy779OnePerson(nameID:"foo-", age:12.2)
				            assert p.age == 12
				            assert p.nameID == "foo-"
				            p = new Groovy779OnePerson(nameID:"foo-", age:"12")
				            println p.age
				            println p.nameID
				        }
				        catch (ClassCastException e) {
				            onException(e)
				        }
				        finally {
				            onFinally()
				        }
				        assert exceptionCalled , "should have invoked the catch clause"
				        assert finallyCalled , "should have invoked the finally clause"
				        // println("Success!")
				    }
				
				    public void testBeanProperty() {
				
				        try {
				            def p2 = new Groovy779AnotherPerson(nameID:1234, age:12.2)
				            assert p2.age == 12
				            assert p2.nameID == "1234"
				            p2 = new Groovy779AnotherPerson(nameID:111, age:"12")
				            println p2.age
				            println p2.nameID
				        }
				        catch (ClassCastException e) {
				            onException(e)
				        }
				        finally {
				            onFinally()
				        }
				        assert exceptionCalled , "should have invoked the catch clause"
				        assert finallyCalled , "should have invoked the finally clause"
				        // println("Success!")
				    }
				
				    public void testAutoboxingProperty() {
				        def p = new Groovy779OneProfit(signal:"bar", rate:15)
				        assert p.signal == "bar"
				        assert p.rate == 15.0
				
				        p = new Groovy779OneProfit(signal:111+22, rate:new java.math.BigDecimal("15"))
				        assert p.signal == "133"
				        assert p.rate == 15.0
				
				        def p2 = new Groovy779AnotherProfit(signal:"bar~", rate:15)
				        assert p2.signal == "bar~"
				        assert p2.rate == 15.0
				
				        p2 = new Groovy779AnotherProfit(signal:111-22, rate:new java.math.BigDecimal("15"))
				        assert p2.signal == "89"
				        assert p2.rate == 15.0
				    }
				
				    void onException(e) {
				        assert e != null
				        exceptionCalled = true
				    }
					
				    void onFinally() {
				        finallyCalled = true
				    }
				
				}
				
				class Groovy779OnePerson {
				   def public String nameID
				   def public int age
				}
				
				class Groovy779AnotherPerson {
				   String nameID
				   int age
				}
				
				class Groovy779OneProfit {
				   public String signal
				   public double rate
				}
				
				class Groovy779AnotherProfit {
				   String signal
				   double rate
				}