[GROOVY-4363] @Immutable class, failure when trying to define private static members

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.7.4
• Fix Version/s: 1.7.5, 1.8-beta-2
• Environment: Mac OSX 10.6.3, JVM 1.6.0_20, Groovy 1.7.4
• Assignee: Paul King
• Reporter: Jarno Lamsa
• Created: 12/Aug/10 11:06
• Updated: 02/Feb/23 22:46
• Resolved: 03/Sep/10 16:19

Description

Attempt to add 'private static' field to a class that has been
annotated as @Immutable causes an error.

Groovy Shell (1.7.4, JVM: 1.6.0_20)
Type 'help' or '\h' for help.
------------------------------------------------------------------------------------------------------------------
groovy:000> @Immutable class AClass

{ groovy:001> static final String FOO = 'bar' groovy:002> }

===> true
groovy:000> @Immutable class BClass

{ groovy:001> private static final String FOO = 'bar' groovy:002> }

ERROR org.codehaus.groovy.control.MultipleCompilationErrorsException:
startup failed:
groovysh_evaluate: -1: cannot modify static final field 'FOO' outside
of static initialization block.
@ line -1, column -1.
groovysh_evaluate: -1: cannot modify static final field 'FOO' outside
of static initialization block.
@ line -1, column -1.
2 errors
...

In Groovy 1.7.3 it does not cause an error.
Groovy Shell (1.7.3, JVM: 1.6.0_20)
Type 'help' or '\h' for help.
------------------------------------------------------------------------------------------------------------------
groovy:000> @Immutable class AClass

{ groovy:001> static final String FOO = 'bar' groovy:002> }

===> true
groovy:000> @Immutable class BClass

{ groovy:001> private static final String FOO = 'bar' groovy:002> }

===> true
groovy:000>
...

Issue Links

• relates to: GROOVY-10925 @TupleConstructor namedVariant breaks on setting private final fields in constructor