Bug 207258 Error exception message in type validation of multi-value parameters
If there is any exception in type validation of multi-value parameter, we will always get following error message: The type of parameter "NewParameter" is expected as "Object[]", not "Array".. This message is incorrect. Please replace the "Array" with the correct value type.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/EngineTask.java
{
		if ( signal == null )
		{
			throw new IllegalArgumentException( "signal can't be null" );
		}
		cancelFlag = true;
		long waitingTime = 0;
		do
		{
			waitingTime += 100;
			try
			{
				Thread.sleep( 100 );
			}
			catch ( Exception ex )
			{
			}
			if ( runningStatus != STATUS_RUNNING )
			{
				return;
			}
		} while ( waitingTime < 5000 );
		return;
	}
	public boolean getCancelFlag( )
	{
		return cancelFlag;
	}
	public void setErrorHandlingOption( int option )
	{