if (searchEngine == null) { searchEngine = new DefaultSearchEngine(this); searchEngine.setNonDefaultEngine(new IMAPQueryEngine(this)); } return searchEngine;
if (charset == null) { charset = Charset.forName(System.getProperty("file.encoding")); } return charset;
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/mail/src/main/java/org/columba/mail/gui/composer/ComposerModel.java
Method name: DefaultSearchEngine getSearchEngine() Method name: Charset getCharset()
Number of AST nodes: 4 Number of AST nodes: 3
1
if (searchEngine == null) {
1
if (charset == null) {
2
			searchEngine = new DefaultSearchEngine(this);
2
			
3
			searchEngine.setNonDefaultEngine(new IMAPQueryEngine(this));
3
charset = Charset.forName(System.getProperty("file.encoding"));
4
		}
4
		}
5
		return searchEngine;
5
		return charset;
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 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)30.3
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    1
    if (searchEngine == null)
    1
    if (searchEngine == null)
    1
    if (charset == null)
    Differences
    Expression1Expression2Difference
    searchEnginecharsetVARIABLE_NAME_MISMATCH
    org.columba.mail.folder.search.DefaultSearchEnginejava.nio.charset.CharsetVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.columba.mail.folder.search.DefaultSearchEngine of variable searchEngine does not match with type java.nio.charset.Charset of variable charset
    • Make classes org.columba.mail.folder.search.DefaultSearchEngine and java.nio.charset.Charset extend a common superclass
    1
    if (charset == null)
                                                                                                                                    
    2
    charset = Charset.forName(System.getProperty("file.encoding"));
    Preondition Violations
    Unmatched statement charset=Charset.forName(System.getProperty("file.encoding")); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    2
    charset = Charset.forName(System.getProperty("file.encoding"));
    2
    searchEngine = new DefaultSearchEngine(this);
    2
    searchEngine = new DefaultSearchEngine(this);
    Preondition Violations
    Unmatched statement searchEngine=new DefaultSearchEngine(this); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
                                                                                                
    3
    searchEngine.setNonDefaultEngine(new IMAPQueryEngine(this));
    3
    searchEngine.setNonDefaultEngine(new IMAPQueryEngine(this));
    Preondition Violations
    Unmatched statement searchEngine.setNonDefaultEngine(new IMAPQueryEngine(this)); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
                                                                                                                                  
                                        
    3
    return charset;
    Preondition Violations
    Unmatched return charset;
    3
    return charset;
    4
    return searchEngine;
    4
    return searchEngine;
    Preondition Violations
    Unmatched return searchEngine;
                                                  
    Precondition Violations (7)
    Row Violation
    1Type org.columba.mail.folder.search.DefaultSearchEngine of variable searchEngine does not match with type java.nio.charset.Charset of variable charset
    2Unmatched statement charset=Charset.forName(System.getProperty("file.encoding")); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    3Unmatched statement searchEngine=new DefaultSearchEngine(this); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    4Unmatched statement searchEngine.setNonDefaultEngine(new IMAPQueryEngine(this)); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    5Unmatched return charset;
    6Unmatched return searchEngine;
    7The refactoring of the clones is infeasible, because the number of macthed statements is equal to zero