Jersey error with multimodule project when using ResourceConfig.packages() and running the executable standalone jar, works otherwise

[wujek-srujek]

I have an Gradle project in which the root project is just a container for the submodules, and provides some common config. The submodules are:

• domain (package: xxx.domain)
• service (depends on domain, package: xxx.service)
• rest (depends on service, package xxx.rest) - the project using spring boot, with spring-boot-starter-jersey; the @SpringApplication annotation is on xxx.Application, and all endpoints are in xxx.rest.

Jersey config is defined the following way:

@Bean
public ResourceConfig endpointConfig() {
    ResourceConfig config = new ResourceConfig();
    config.packages(true, Application.class.getPackage().getName()); // 'xxx', recursive
    return config;
}

This works fine when running from the IDE (IDEA 14.1) and with 'gradle bootRun', but fails when using 'java -jar' on the repackaged jar with the following error (Indentation from me to make it a bit more readable):

Caused by: java.lang.RuntimeException: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.autoconfigure.jersey.JerseyAutoConfiguration': Injection of autowired dependencies failed; nested exception is
org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.glassfish.jersey.server.ResourceConfig org.springframework.boot.autoconfigure.jersey.JerseyAutoConfiguration.config; nested exception is
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'endpointConfig' defined in xxx.Application: Bean instantiation via factory method failed; nested exception is
        org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.glassfish.jersey.server.ResourceConfig]: Factory method 'endpointConfig' threw exception; nested exception is
            org.glassfish.jersey.server.internal.scanning.ResourceFinderException: java.io.FileNotFoundException: /Users/wujek/Development/IdeaProjects/xxx/rest/build/libs/xxx.rest-0.1.jar!/lib/xxx.service-0.1.jar (No such file or directory)

Apparently, it attempts to scan the packages from the contained jars but it fails to do so.

I'm not sure whether this is a Jersey issue or a limitation of the executable jar format, which I somehow violate, or a combination of both. I guess it works from the IDE and with bootRun as the run is performed on exploded resources, not packed in jars.

[dsyer]

Looks like a limitation of Jersey to me. You can configure the packager to unpack those jars that cannot be scanned (http://docs.spring.io/spring-boot/docs/1.3.0.BUILD-SNAPSHOT/maven-plugin/repackage-mojo.html#requiresUnpack). I suggest you do that.

[wuqunfei]

but using unpack are not working in fact.

[dsyer]

This issue is closed. It doesn't help to append comments to closed issues. If you still have a problem, please open a new issue and include some detailed descriptions and preferably a project to reproduce the problem you are seeing.

[marco-lobo]

I have the same issue, is there another question about this already?

[dsyer]

The question is answered above: use the "unpack" feature of the launcher, or use a different jar layout.