Bug 138562 Splite extendsexcpetion to seperate sub class
The suggestion is Parent invalid Cycle extends Different type extends Not top level extends
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/ModuleUtil.java
{
	/**
	 * The library type.
	 */
	public final static int LIBRARY = 0;
	/**
	 * The report design type.
	 */
	public final static int REPORT_DESIGN = 1;
	/**
	 * The invalid module.
	 */
	public final static int INVALID_MODULE = 2;
	/**
	 * Parser handler used to parse only the Action part of the design. The
	 * existing action state and property validating is reused.
	 */
	private static class ActionParserHandler extends ModuleParserHandler