无法运行简单的常规程序

Question

这是我的groovy程序，当我尝试使用spring-CLI运行它时，我收到错误。我的groovy安装正确。

    @RestController
    class Hello{
        @RequestMapping("/")
        String home(){
             return "Hello World"
         }
     }

  

错误：

java.lang.reflect.InvocationTargetException
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:488)
        at org.springframework.boot.cli.app.SpringApplicationLauncher.launch(SpringApplicationLauncher.java:65)
        at org.springframework.boot.cli.command.run.SpringApplicationRunner$RunThread.run(SpringApplicationRunner.java:173)
Caused by: java.lang.IllegalArgumentException: Cannot instantiate interface org.springframework.context.ApplicationContextInitializer : org.springframework.boot.context.ConfigurationWarningsApplicationContextInitializer
        at org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:413)
        at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:392)
        at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:383)
        at org.springframework.boot.SpringApplication.initialize(SpringApplication.java:249)
        at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:225)
        ... 6 more
Caused by: java.lang.NoClassDefFoundError: java/sql/SQLException
        at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:141)
        at org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:409)
        ... 10 more
Caused by: java.lang.ClassNotFoundException: java.sql.SQLException
        at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:466)
        at org.springframework.boot.cli.compiler.ExtendedGroovyClassLoader.findClass(ExtendedGroovyClassLoader.java:84)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:563)
        at groovy.lang.GroovyClassLoader.loadClass(GroovyClassLoader.java:677)
        at groovy.lang.GroovyClassLoader.loadClass(GroovyClassLoader.java:787)
        at groovy.lang.GroovyClassLoader.loadClass(GroovyClassLoader.java:775)
        ... 12 more

Error shown after running spring-cli