if (observable == null) { observable = ((IMAPRootFolder) getRootFolder()).getObservable(); } return observable;
if (store == null) { store = ((IMAPRootFolder) getRootFolder()).getServer(); } return store;
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/folder/imap/IMAPFolder.java
Method name: IStatusObservable getObservable() Method name: IImapServer getServer()
Number of AST nodes: 3 Number of AST nodes: 3
1
if (observable == null) {
1
if (store == null) {
2
			observable = ((IMAPRootFolder) getRootFolder()).getObservable();
2
			store = ((IMAPRootFolder) getRootFolder()).getServer();
3
		}
3
		}
4
		return observable;
4
		return store;
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 declared in the same class
Number of node comparisons5
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements1
    Number of unmapped statements in the first code fragment2
    Number of unmapped statements in the second code fragment2
    Time elapsed for statement mapping (ms)2.3
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (observable == null)
    1
    if (observable == null)
    1
    if (store == null)
    Differences
    Expression1Expression2Difference
    observablestoreVARIABLE_NAME_MISMATCH
    org.columba.api.command.IStatusObservableorg.columba.mail.imap.IImapServerVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.columba.api.command.IStatusObservable of variable observable does not match with type org.columba.mail.imap.IImapServer of variable store
    • Make classes org.columba.api.command.IStatusObservable and org.columba.mail.imap.IImapServer extend a common superclass
    1
    if (store == null)
                                                                                                                  
    2
    store = ((IMAPRootFolder)getRootFolder()).getServer();
    Preondition Violations
    Unmatched statement store=((IMAPRootFolder)getRootFolder()).getServer(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    2
    store = ((IMAPRootFolder)getRootFolder()).getServer();
    2
    observable = ((IMAPRootFolder)getRootFolder()).getObservable();
    2
    observable = ((IMAPRootFolder)getRootFolder()).getObservable();
    Preondition Violations
    Unmatched statement observable=((IMAPRootFolder)getRootFolder()).getObservable(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
                                                                                                                                    
                                    
    3
    return store;
    Preondition Violations
    Unmatched return store;
    3
    return store;
    3
    return observable;
    3
    return observable;
    Preondition Violations
    Unmatched return observable;
                                              
    Precondition Violations (6)
    Row Violation
    1Type org.columba.api.command.IStatusObservable of variable observable does not match with type org.columba.mail.imap.IImapServer of variable store
    2Unmatched statement store=((IMAPRootFolder)getRootFolder()).getServer(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    3Unmatched statement observable=((IMAPRootFolder)getRootFolder()).getObservable(); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    4Unmatched return store;
    5Unmatched return observable;
    6The refactoring of the clones is infeasible, because the number of macthed statements is equal to zero