if (subFolder == null) { throw new IllegalArgumentException("Null Folder passed"); } return _subFolders.remove(subFolder);
if (listener == null) { throw new IllegalArgumentException("listener cannot be null"); } listeners.add(listener);
Clone fragments detected by clone detection tool
File path: /sql12/plugins/favs/src/net/sourceforge/squirrel_sql/plugins/favs/Folder.java File path: /sql12/plugins/dbcopy/src/net/sourceforge/squirrel_sql/plugins/dbcopy/CopyExecutor.java
Method name: boolean removeSubFolder(Folder) Method name: void addListener(CopyTableListener)
Number of AST nodes: 3 Number of AST nodes: 3
1
if (subFolder == null) {
1
if (listener == null) {
2
			throw new IllegalArgumentException("Null Folder passed");
2
            throw new IllegalArgumentException("
3
		}
4
		return _subFolders.remove(subFold
3
listener cannot be null");
4
        }
5
er);
5
        listeners.add(listener);
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
Number of node comparisons5
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements2
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment1
    Time elapsed for statement mapping (ms)0.6
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (subFolder == null)
    1
    if (subFolder == null)
    1
    if (listener == null)
    Differences
    Expression1Expression2Difference
    subFolderlistenerVARIABLE_NAME_MISMATCH
    net.sourceforge.squirrel_sql.plugins.favs.Foldernet.sourceforge.squirrel_sql.plugins.dbcopy.event.CopyTableListenerVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type net.sourceforge.squirrel_sql.plugins.favs.Folder of variable subFolder does not match with type net.sourceforge.squirrel_sql.plugins.dbcopy.event.CopyTableListener of variable listener
    • Make classes net.sourceforge.squirrel_sql.plugins.favs.Folder and net.sourceforge.squirrel_sql.plugins.dbcopy.event.CopyTableListener extend a common superclass
    1
    if (listener == null)
    2
    throw new IllegalArgumentException("Null Folder passed");
    2
    throw new IllegalArgumentException("Null Folder passed");
    2
    throw new IllegalArgumentException("listener cannot be null");
    Differences
    Expression1Expression2Difference
    "Null Folder passed""listener cannot be null"LITERAL_VALUE_MISMATCH
    2
    throw new IllegalArgumentException("listener cannot be null");
                                                          
    3
    listeners.add(listener);
    Preondition Violations
    Unmatched statement listeners.add(listener); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    3
    listeners.add(listener);
    3
    return _subFolders.remove(subFolder);
    3
    return _subFolders.remove(subFolder);
    Preondition Violations
    Unmatched statement return _subFolders.remove(subFolder); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    Unmatched return _subFolders.remove(subFolder);
                                                                                    
    Precondition Violations (5)
    Row Violation
    1Type net.sourceforge.squirrel_sql.plugins.favs.Folder of variable subFolder does not match with type net.sourceforge.squirrel_sql.plugins.dbcopy.event.CopyTableListener of variable listener
    2Unmatched statement listeners.add(listener); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    3Unmatched statement return _subFolders.remove(subFolder); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    4Unmatched return _subFolders.remove(subFolder);
    5The refactoring of the clones is infeasible, because classes net.sourceforge.squirrel_sql.plugins.favs.Folder and net.sourceforge.squirrel_sql.plugins.dbcopy.CopyExecutor do not have a common superclass