ClassNotFoundException when running a CLI jar that has 'beans { }' configuration

[felipeg48]

Example:

@Component
class Example implements CommandLineRunner {

@Autowired
MyService myService

void run(String... args) {
    println "Hi There"
}
}

beans{
myService(MyService)
}

class MyService { }

and executing:

$ spring run app.groovy

works as expected. But if I do the jar

$ spring jar myjar.jar app.groovy
$ java -jar myjar.jar

I got:

java.lang.reflect.InvocationTargetException
Caused by: java.lang.NoClassDefFoundError: org/springframework /boot/BeanDefinitionLoader$GroovyBeanDefinitionSource

[wilkinsona]

This problem can be reproduced using the beans CLI sample:

$ ../../spring-boot-cli/target/spring-boot-cli-1.0.0.BUILD-SNAPSHOT-bin/spring-1.0.0.BUILD-SNAPSHOT/bin/spring jar app.jar beans.groovy
$ java -jar app.jar
…
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.BeanDefinitionLoader$GroovyBeanDefinitionSource
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
    ... 25 more

However, it works as expected if you build the sample from a different directory:

$ spring-boot-cli/target/spring-boot-cli-1.0.0.BUILD-SNAPSHOT-bin/spring-1.0.0.BUILD-SNAPSHOT/bin/spring jar app.jar spring-boot-cli/samples/beans.groovy
$ [aw-mb-pro master]: java -jar app.jar

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::  (v1.0.0.BUILD-SNAPSHOT)
…

There's a key difference in the contents of the two jars.

The working case:

$ unzip -l app.jar
…
    6254  03-27-14 15:36   beans.class
    5115  03-27-14 15:36   Application.class
    2595  03-27-14 15:36   beans$_closure1.class
…

The failing case, note the file: prefix on the two beans classes:

$ unzip -l spring-boot-cli/samples/app.jar
…
    6282  03-27-14 15:35   file:beans.class
    5120  03-27-14 15:35   Application.class
    2615  03-27-14 15:35   file:beans$_closure1.class
…

[wilkinsona]

There's a bug in org.codehaus.groovy.ast.ModuleNode.extractClassFromFileDescription(). It doesn't handle a URL with no slashes in it correctly, causing the name to be left with the file: prefix.