Bug 163018 An error extension will lead the report contain chart can't be opened and can not new a report.
Details: An error extension will lead the report contain chart can't open In org.eclipse.birt.report.tests.model has an error extension. When run the birt use workbenck, the report contain chart can't be opened and it can not new a report.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/metadata/ObjectDefn.java
name = theName;
	}
	/**
	 * Sets the display ID while creating the element type.
	 * 
	 * @param id
	 *            The display name ID to set.
	 */
	void setDisplayNameKey( String id )
	{
		displayNameKey = id;
	}
	/**
	 * Gets the resource key for the display name.
	 * 
	 * @return The display name resource key.
	 */
	public Object getDisplayNameKey( )
	{
		return displayNameKey;
	}
	/**
	 * Gets the display name.
	 * 
	 * @return Returns the display name.
	 */
	public String getDisplayName( )
	{
		assert displayNameKey != null;
		return ModelMessages.getMessage( this.displayNameKey );