Groovy and the OSGI R6 Annotations

["gary_gandy@trendmicro.com" <ga...@trendmicro.com>]

Hello,

I've been creating an OSGI bundle using Groovy, and I've run into the following issue using one of the OSGI R6 metadata annotations. When creating a configuration for an OSGI service, you define a custom annotation in Java as the following:

- - - - - JSONServiceConfig.java - - - - -
package com.company.core.service

import org.osgi.service.metatype.annotations.AttributeDefinition;
import org.osgi.service.metatype.annotations.ObjectClassDefinition;

@ObjectClassDefinition(
                        name = "JSONService configuration",
                        description = "This configures the outgoing proxy setup options for the JSONService"
)
public @interface JSONServiceConfig {
            @AttributeDefinition(  name="Proxy Address", description = "IP address for the proxy" )
            String proxyAddress();

            @AttributeDefinition( name="Proxy Port", description = "Port number of the proxy" )
            int proxyPort();
}
- - - - -

The equivalent code in Groovy is hardly changed at all:

- - - - - JSONServiceConfig.groovy - - - - -
package com.company.core.service

import org.osgi.service.metatype.annotations.AttributeDefinition
import org.osgi.service.metatype.annotations.ObjectClassDefinition

@ObjectClassDefinition(
                        name = "JSONService configuration",
                        description = "This configures the outgoing proxy setup options for the JSONService"
)
public @interface JSONServiceConfig {
            @AttributeDefinition(  name="Proxy Address", description = "IP address for the proxy" )
            String proxyAddress()

            @AttributeDefinition( name="Proxy Port", description = "Port number of the proxy" )
            int proxyPort()
}
- - - - -

However, when compiling the Groovy code, the compiler stops at the following error:

JSONServiceConfig.groovy: 6: Annotation @org.osgi.service.metatype.annotations.ObjectClassDefinition is not allowed on element ANNOTATION
@ line 6, column 1.
   @ObjectClassDefinition(
   ^

1 error

Is there some reason that the previous code will compile in Java but not in Groovy, and are there any alterations to be made on the Groovy code to allow compilation?

Regards,
Gary

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