Illegal reflective access in io.protostuff.runtime.EnumIO

In relation to #239, 1.8.0-SNAPSHOT still has reflective access errors in io.protostuff.runtime.EnumIO:

WARNING: Illegal reflective access by io.protostuff.runtime.EnumIO to field java.util.EnumMap.keyType
WARNING: Illegal reflective access by io.protostuff.runtime.EnumIO to field java.util.EnumSet.elementType

protostuff/protostuff-runtime/src/main/java/io/protostuff/runtime/EnumIO.java

Lines 52 to 64 in c7bef4a

    
           try 
        
           { 
        
               keyTypeFromMap = EnumMap.class.getDeclaredField("keyType"); 
        
               keyTypeFromMap.setAccessible(true); 
        
               valueTypeFromSet = EnumSet.class.getDeclaredField("elementType"); 
        
               valueTypeFromSet.setAccessible(true); 
        
               success = true; 
        
           } 
        
           catch (Exception e) 
        
           { 
        
               // ignore 
        
           }

It looks like it attempts to access those fields, but ignores it if it can't. Can this be fixed the same way b6ad96f does it?

	try
	{
	keyTypeFromMap = EnumMap.class.getDeclaredField("keyType");
	keyTypeFromMap.setAccessible(true);
	valueTypeFromSet = EnumSet.class.getDeclaredField("elementType");
	valueTypeFromSet.setAccessible(true);
	success = true;
	}
	catch (Exception e)
	{
	// ignore
	}