This is a very special issue...

The code:

private static final Long ELEMENT_TYPE = Long.valueOf("0");

looks like there is some misunderstanding - might be triggered by other findings or to workaround the magic number finder.

If you look what this code does, it stores a value as String and then parses it to a Long. Please store this value directly in a long and then wrap it to a Long:

up to JDK1.4.2:

private static final Long ELEMENT_TYPE = new Long(0L);

Starting with JDK1.5:

private static final Long ELEMENT_TYPE = Long.valueOf(0L);