if (searchEngine == null) { searchEngine = new DefaultSearchEngine(this); searchEngine.setNonDefaultEngine(new IMAPQueryEngine(this)); } return searchEngine;
if( dataStorage == null ) { dataStorage = new ZippedMHDataStorage(this.getDirectoryFile()); } return dataStorage;
Clone fragments detected by clone detection tool
File path: /columba-1.4-src/mail/src/main/java/org/columba/mail/folder/imap/IMAPFolder.java File path: /columba-1.4-src/plugins/org.columba.mail.ZippedMHFolder/src/org/columba/mail/folder/zippedmh/ZippedMHFolder.java
Method name: DefaultSearchEngine getSearchEngine() Method name: IDataStorage getDataStorageInstance()
Number of AST nodes: 4 Number of AST nodes: 3
1
if (searchEngine == null) {
1
if( dataStorage == null ) {
2
			searchEngine = new DefaultSearchEngine(this);
2
			
3
			searchEngine.setNonDefaultEngine(new IMAPQueryEngine(this));
3
dataStorage = new ZippedMHDataStorage(this.getDirectoryFile());
4
		}
4
		}
5
		return searchEngine;
5
		return dataStorage;
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)0.1
Clones locationClones are in different classes having the same super class
Number of node comparisons7
  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 fragment2
    Time elapsed for statement mapping (ms)0.6
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    1
    if (searchEngine == null)
    1
    if (searchEngine == null)
    1
    if (dataStorage == null)
    Differences
    Expression1Expression2Difference
    searchEnginedataStorageVARIABLE_NAME_MISMATCH
    org.columba.mail.folder.search.DefaultSearchEngineorg.columba.mail.folder.zippedmh.ZippedMHDataStorageVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.columba.mail.folder.search.DefaultSearchEngine of variable searchEngine does not match with type org.columba.mail.folder.zippedmh.ZippedMHDataStorage of variable dataStorage
    • Make classes org.columba.mail.folder.search.DefaultSearchEngine and org.columba.mail.folder.zippedmh.ZippedMHDataStorage extend a common superclass
    1
    if (dataStorage == null)
                                                                                                                                    
    2
    dataStorage = new ZippedMHDataStorage(this.getDirectoryFile());
    2
    searchEngine = new DefaultSearchEngine(this);
                                                                                                
    3
    searchEngine.setNonDefaultEngine(new IMAPQueryEngine(this));
                                                                                                                                  
                                                
    3
    return dataStorage;
    Preondition Violations
    Unmatched return dataStorage;
    3
    return dataStorage;
    4
    return searchEngine;
    4
    return searchEngine;
    Preondition Violations
    Unmatched return searchEngine;
                                                  
    Precondition Violations (3)
    Row Violation
    1Type org.columba.mail.folder.search.DefaultSearchEngine of variable searchEngine does not match with type org.columba.mail.folder.zippedmh.ZippedMHDataStorage of variable dataStorage
    2Unmatched return dataStorage;
    3Unmatched return searchEngine;