try { op.finish(); } catch (Exception e) { // Must create a ExceptionProcessor e.printStackTrace(); } unregister(); boss.operationFinished(op, this);
if (instance == null) { try { instance = new Config(); } catch (Exception e) { e.printStackTrace(); } }
Clone fragments detected by clone detection tool
File path: /columba-1.4-src/core/src/main/java/org/columba/core/command/Worker.java File path: /columba-1.4-src/calendar/src/main/java/org/columba/calendar/config/Config.java
Method name: void finished() Method name: IConfig getInstance()
Number of AST nodes: 4 Number of AST nodes: 3
1
try {
2
	    op.finish
1
if (instance == null) {
2
			try {
3
();
3
				instance = new Config();
4
	} catch (Exception e) {
4
			} catch (Exception e) {
5
	    // Must create a ExceptionProcessor
5
	
6
	    e.printStackTrace();
6
			e.printStackTrace();
7
	}
7
	
8
	unregister();
9
	boss.operationFinished(op, this);
8
		}
9
		}
Summary
Number of common nesting structure subtrees1
Number of refactorable cases0
Number of non-refactorable cases1
Time elapsed for finding largest common nesting structure subtrees (ms)0.2
Clones locationClones are in different classes
Number of node comparisons4
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements1
    Number of unmapped statements in the first code fragment3
    Number of unmapped statements in the second code fragment1
    Time elapsed for statement mapping (ms)0.6
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    1
    try
    2
    try
    2
    op.finish();
    2
    op.finish();
    Preondition Violations
    Unmatched statement op.finish(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
                                  
                                                      
    3
    instance = new Config();
    Preondition Violations
    Unmatched statement instance=new Config(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    Unmatched statement instance=new Config(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
    3
    instance = new Config();
    3
    unregister();
    3
    unregister();
    Preondition Violations
    Unmatched statement unregister(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
                                    
    4
    boss.operationFinished(op, this);
    4
    boss.operationFinished(op, this);
    Preondition Violations
    Unmatched statement boss.operationFinished(op,this); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
                                                                          
    Precondition Violations (6)
    Row Violation
    1Unmatched statement op.finish(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
    2Unmatched statement instance=new Config(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    3Unmatched statement instance=new Config(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted
    4Unmatched statement unregister(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    5Unmatched statement boss.operationFinished(op,this); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    6The refactoring of the clones is infeasible, because classes org.columba.core.command.Worker and org.columba.calendar.config.Config do not have a common superclass