Ivan Kuznetsov created GROOVY-8698:
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Summary: Double class initialization using
groovy.lang.GroovyClassLoader
Key: GROOVY-8698
URL: https://issues.apache.org/jira/browse/GROOVY-8698
Project: Groovy
Issue Type: Bug
Affects Versions: 2.5.0, 2.4.15, 2.3.4
Environment: OS: Windows 7, JVM: OpenJDK 10.0.1, Groovy: 2.5.0
Reporter: Ivan Kuznetsov
Attachments: output.txt, test.zip
I'm integrating Groovy DSL into developing java application, and I'm faced with
this issue when did test runs.
What I'm trying to do:
1. GroovyClassLoader reads and parses all .groovy scripts from file system;
some of these scripts - real scripts (class Script), others - real
classes/enums;
2. instantiates and runs only Script classes, others are left as is in class
loader.
I'm expecting that all scripts will use the same instances (in static fields or
enums) of common classes to which they refer and which located in outer scripts.
But, first created Script instance loads its own class from outer script,
initializes it and uses it, but all other Script instances use loaded classes
and its static instances on step 1. This is reproducible on specified
'affected' versions, so I suppose that it affects all versions.
I've created sample project and attached to this issue to show what's going on.
This application does above steps. Scripts
'model.concrete1.ConcreteModel1.groovy' and
'model.concrete2.ConcreteModel2.groovy' are shared classes, other files are
scripts that refer to these shared classes and print class'es hash code. When
you run application, you will see output in which FirstScript refers to its own
ConcreteModel class and other scripts refer to ConcreteModel class that holds
GroovyClassLoader. If you rename FirstScript.groovy to WFirstScript.groovy,
order will change and, at this moment, MainScript.groovy instead of
FirstScript.groovy will use its own class.
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