if (_queries == null) { return 0; } return _queries.size();
if (_diffs == null) { return 0; } return _diffs.size();
Clone fragments detected by clone detection tool
File path: /sql12/fw/src/net/sourceforge/squirrel_sql/fw/sql/QueryTokenizer.java File path: /sql12/plugins/dbdiff/src/net/sourceforge/squirrel_sql/plugins/dbdiff/gui/ColumnDiffDialog.java
Method name: int getQueryCount() Method name: int getRowCount()
Number of AST nodes: 3 Number of AST nodes: 3
1
if (_queries == null) {
1
if (_diffs == null) {
2
            return 0;
3
        }
4
        
2
 return 0; }
5
return _queries.size();
3
			return _diffs.size();
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)0.4
Clones locationClones are in different classes
Number of node comparisons5
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements3
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)0.8
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (_queries == null)
    1
    if (_queries == null)
    1
    if (_diffs == null)
    Differences
    Expression1Expression2Difference
    _queries_diffsVARIABLE_NAME_MISMATCH
    java.util.ArrayListjava.util.ListVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.util.ArrayList<java.lang.String> of variable _queries does not match with type java.util.List<net.sourceforge.squirrel_sql.plugins.dbdiff.ColumnDifference> of variable _diffs
    • Make classes java.util.ArrayList and java.util.List extend a common superclass
    1
    if (_diffs == null)
    2
    return 0;
    2
    return 0;
    3
    return _queries.size();
    3
    return _queries.size();
    3
    return _diffs.size();
    Differences
    Expression1Expression2Difference
    _queries_diffsVARIABLE_NAME_MISMATCH
    java.util.ArrayListjava.util.ListVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.util.ArrayList<java.lang.String> of variable _queries does not match with type java.util.List<net.sourceforge.squirrel_sql.plugins.dbdiff.ColumnDifference> of variable _diffs
    • Make classes java.util.ArrayList and java.util.List extend a common superclass
    3
    return _diffs.size();
    Precondition Violations (3)
    Row Violation
    1Type java.util.ArrayList<java.lang.String> of variable _queries does not match with type java.util.List<net.sourceforge.squirrel_sql.plugins.dbdiff.ColumnDifference> of variable _diffs
    2Type java.util.ArrayList<java.lang.String> of variable _queries does not match with type java.util.List<net.sourceforge.squirrel_sql.plugins.dbdiff.ColumnDifference> of variable _diffs
    3The refactoring of the clones is infeasible, because classes net.sourceforge.squirrel_sql.fw.sql.QueryTokenizer and net.sourceforge.squirrel_sql.plugins.dbdiff.gui.ColumnDiffDialog.RowHeaderTableModel do not have a common superclass