Java 初学者在学习异常时遇到网上一篇博文，里面给的代码的运行结果和我想的不符但又没有解释，来此求教，谢谢

博文传送门：点击我
运行结果和我想的不同的程序的代码如下：

public class TestException {  
    public TestException() {  
    }  
  
    boolean testEx() throws Exception {  
        boolean ret = true;  
        try {  
            ret = testEx1();  
        } catch (Exception e) {  
            System.out.println("testEx, catch exception");  
            ret = false;  
            throw e;  
        } finally {  
            System.out.println("testEx, finally; return value=" + ret);  
            return ret;  
        }  
    }  
  
    boolean testEx1() throws Exception {  
        boolean ret = true;  
        try {  
            ret = testEx2();  
            if (!ret) {  
                return false;  
            }  
            System.out.println("testEx1, at the end of try");  
            return ret;  
        } catch (Exception e) {  
            System.out.println("testEx1, catch exception");  
            ret = false;  
            throw e;  
        } finally {  
            System.out.println("testEx1, finally; return value=" + ret);  
            return ret;  
        }  
    }  
  
    boolean testEx2() throws Exception {  
        boolean ret = true;  
        try {  
            int b = 12;  
            int c;  
            for (int i = 2; i >= -2; i--) {  
                c = b / i;  
                System.out.println("i=" + i);  
            }  
            return true;  
        } catch (Exception e) {  
            System.out.println("testEx2, catch exception");  
            ret = false;  
            throw e;  
        } finally {  
            System.out.println("testEx2, finally; return value=" + ret);  
            return ret;  
        }  
    }  
  
    public static void main(String[] args) {  
        TestException testException1 = new TestException();  
        try {  
            testException1.testEx();  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
    }  
}

eclipose 实际运行的结果：

i=2
i=1
testEx2, catch exception
testEx2, finally; return value=false
testEx1, finally; return value=false
testEx, finally; return value=false

我设想的结果与我为什么会这么想：

i=2
i=1
testEx2, catch exception
testEx2, finally; return value=false //回到 testEX1 中调用 testEx2()处,然后进入 catch 块
testEx1, catch exception //进入 catch 块因此应该输出这句话,但不知道为什么实际并没有输出
testEx1, finally; return value=false
testEx, catch exception
testEx, finally; return value=false

请问我的思考错在哪里呢？为什么不进入 catch 块？谢谢