@Override
	public DataType toDataType() throws DuplicateNameException, IOException {
		String name = "CONSTANT_Package_info";
		Structure structure = new StructureDataType(name, 0);
		structure.add(BYTE, "tag", null);
		structure.add(WORD, "name_index", null);
		return structure;
	}
The {@code name_index} must be a valid index into the constant pool. The entry at that index
must be a {@link ConstantPoolUtf8Info} structure representing a valid package name (encoded 
in internal form).
@return the name index
Ghidra/Processors/JVM/src/main/java/ghidra/javaclass/format/constantpool/ConstantPoolPackageInfo.java