When using the shortened Groovy syntax for class literals as values in Annotations like in the code below

package issue

@Issue(InnerClass)
class IssueMain {

    static class InnerClass {
    }

    static main(args) {
        println 'It works!'
    }
}

@interface Issue {
    Class value()
}

Groovy-Eclipse shows a compilation error in line 3 (InnerClass cannot be resolved or is not a field), despite this being valid Groovy code that compiles and runs fine. When adding a.class suffix to InnerClass, the error disappears.

I used the the following to demonstrate the issue:
Spring Tool Suite

Version: 3.8.3.RELEASE
Build Id: 201612191351
Platform: Eclipse Neon.2 (4.6.2)

Groovy-Eclipse Feature 2.9.2.xx-201701200229-e46