Bug 211004 Failed to remove temp db directory after running multiple reports
Description: I use Report Engine API to do runAndrender, run and dataextract tasks on multiple reports. Before the Platform started, I change the temp folder(System.setProperty( "java.io.tmpdir", TEMP_HOME )). Each task is closed after it finished and I shutdown the Platform after all the tasks finished. In log I found "Fail to remove one or more file in temp db directory,but it will be removed when the VM exits: D:\BIRT_NG\temp/BIRTSampleDB_1196129572031_10a6ae2". In temp folder the BIRTSampleDB_XXX is still here but not removed. I think it is the issue when remove the Temp sampleDB. Build number: 2.3.0.v20071127-0630
data/org.eclipse.birt.report.data.oda.jdbc/src/org/eclipse/birt/report/data/oda/jdbc/JDBCDriverManager.java
if ( cachedDriversMap.get( driverClassName ) == null )
			{
				Enumeration enumeration = DriverManager.getDrivers( );
				while ( enumeration.hasMoreElements( ) )
				{
					Driver driver = (Driver) enumeration.nextElement( );
					
					
					
					
					if ( isExpectedDriver( driver, driverClassName ) )
					{
						if ( driver.acceptsURL( connectionString ) )
						{
							cachedDriversMap.put( driverClassName, driver );
							
							
							
							
							
							tryCreateConnection( driverClassName,
									connectionString,
									userId,
									password );
							canConnect = true;
							break;
						}
					}
				}