ResourceBundle.getBundle(String, Locale) fails inside Groovy constructor (MissingResourceException) (see https://issues.apache.org/jira/browse/GROOVY-7959)

console.log

$ java -version && groovy -v
java version "1.8.0_102"
Java(TM) SE Runtime Environment (build 1.8.0_102-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.102-b14, mixed mode)
Groovy Version: 2.4.7 JVM: 1.8.0_102 Vendor: Oracle Corporation OS: Mac OS X

$ javac JavaTextProvider.java 

$ groovy main.groovy
--- ResourceBundle initialized in Groovy Script
Hallo
--- ResourceBundle initialized in Java Constructor
Hallo
--- ResourceBundle initialized in Groovy Constructor
Caught: java.util.MissingResourceException: Can't find bundle for base name text_test, locale de
java.util.MissingResourceException: Can't find bundle for base name text_test, locale de
	at GroovyTextProvider.<init>(GroovyTextProvider.groovy:5)
	at main.run(main.groovy:10)

GroovyTextProvider.groovy

class GroovyTextProvider {
  private final ResourceBundle bundle

  GroovyTextProvider(String name) {
    bundle = ResourceBundle.getBundle("text_${name}", Locale.GERMAN)
  }

  String get(String key) {
    bundle.getString(key)
  }
}

JavaTextProvider.java

import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;

public class JavaTextProvider {
    private final ResourceBundle bundle;

    public JavaTextProvider(String name) {
        bundle = ResourceBundle.getBundle("text_" + name, Locale.GERMAN);
    }

    public String get(String key) {
          return bundle.getString(key);
    }
}

main.groovy

println '--- ResourceBundle initialized in Groovy Script'
String name = "test"
ResourceBundle bundle = ResourceBundle.getBundle("text_${name}", Locale.GERMAN)
println bundle.getString('hello')

println '--- ResourceBundle initialized in Java Constructor'
println new JavaTextProvider('test').get('hello')

println '--- ResourceBundle initialized in Groovy Constructor'
println new GroovyTextProvider('test').get('hello')

text_test_de.properties

hello = Hallo