[jbossseam-issues] [JBoss JIRA] Closed: (JBSEAM-4169) Enum converter does not handle inner anonymous enums

Enum converter does not handle inner anonymous enums ---------------------------------------------------- Key: JBSEAM-4169 URL: https://jira.jboss.org/jira/browse/JBSEAM-4169 Project: Seam Issue Type: Bug Affects Versions: 2.1.1.GA Environment: JBoss 5.0.1.GA, JDK 6u13, Seam 2.1.1.GA Reporter: Adam Michalik Assignee: Norman Richards Fix For: 2.1.2 The XHTML: <h:selectManyListbox value="#{testBean.tests}"> <s:selectItems value="#{testLister.tests}" noSelectionLabel="" var="test" label="#{test}"/> <s:convertEnum/> </h:selectManyListbox> testLister returns a Set<Test>, testBean.set/getTests operates on List<Test>. The Test enum: package test; public enum Test { TEST, TEST_ANON { }; } Enum converter fails with: java.lang.IllegalArgumentException with message: "test.Test$1 is not an enum type" java.lang.Class.enumConstantDirectory(Class.java:2965) java.lang.Enum.valueOf(Enum.java:191) org.jboss.seam.ui.converter.EnumConverter.getAsObject(EnumConverter.java:44) org.jboss.seam.ui.converter.PrioritizableConverter.getAsObject(PrioritizableConverter.java:61) org.jboss.seam.ui.converter.ConverterChain.getAsObject(ConverterChain.java:110) This is caused by the converter code: else if (val instanceof Collection) { t = ((Collection) val).iterator().next().getClass(); return Enum.valueOf(t, value); } When t is an anonymous inner enum, the Enum.valueOf cannot be invoked properly. Cf.: package test; public enum Test { TEST, TEST_ANON { }; public static void main(String[] args) { System.out.println(Test.TEST.getClass()); // prints "class test.Test" Class c1 = Test.TEST.getClass(); System.out.println(Enum.valueOf(c1, "TEST")); // prints "TEST" System.out.println(Test.TEST_ANON.getClass()); // prints "class test.Test$1" Class c2 = Test.TEST_ANON.getClass(); System.out.println(Enum.valueOf(c2, "TEST_ANON")); // java.lang.IllegalArgumentException: test.Test$1 is not an enum type } } Solution would be to use Enum's getDeclaringClass().