[LANG-116] Enum's outer class may not be loaded for EnumUtils

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0
• Fix Version/s: 2.1

Environment

Operating System: other
Platform: Other

• Bugzilla Id: 23374
• Assignee: Unassigned
• Reporter: david
• Created: 24/Sep/03 05:27
• Updated: 16/May/06 12:34
• Resolved: 16/May/06 12:34

Description

I have a class with an Enum inner class, and I call MyClass.MyEnum.getEnumList()
in a JSP page (with Tomcat 3.3.1). I'm using enums pretty much exactly as
described in Enum's javadoc. It returns an empty Collection, even though I have
defined several enums. At any point in the JSP page after I reference a
specific Enum, the list shows up properly populated.

What's happening is presumably a classloader issue, where
MyClass.MyEnum.getEnumList() can be called without loading this class. Perhaps
Tomcat's multiple classloaders make this possible. In any case, the workaround
is easy. I changed:

public static List getEnumList()

{ return getEnumList(MyEnum.class); }

to:

public static List getEnumList()

{ new MyParentClass(); return getEnumList(MyEnum.class); }

for all the methods that need to access the enums.