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					@ -319,7 +319,7 @@ public class DataResultServiceImpl implements DataResultService {
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					                        try { | 
				
			
			
		
	
		
			
				
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					                            Date date1 = sdf.parse(o1.getTime()); | 
				
			
			
		
	
		
			
				
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					                            Date date2 = sdf.parse(o2.getTime()); | 
				
			
			
		
	
		
			
				
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					                            return date1.compareTo(date2); | 
				
			
			
		
	
		
			
				
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					                            return date2.compareTo(date1); | 
				
			
			
		
	
		
			
				
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					                        } catch (ParseException e) { | 
				
			
			
		
	
		
			
				
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					                            throw new IllegalArgumentException("Invalid date format", e); | 
				
			
			
		
	
		
			
				
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					                        } | 
				
			
			
		
	
	
		
			
				
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