if ( synchronizations == null ) { synchronizations = new LinkedList(); } synchronizations.add( synchronization );
if ( childFromClauses == null ) { childFromClauses = new HashSet(); } childFromClauses.add( fromClause );
Clone fragments detected by clone detection tool
File path: /hibernate-distribution-3.3.2.GA/project/testing/src/main/java/org/hibernate/test/tm/SimpleJtaTransactionImpl.java File path: /hibernate-distribution-3.3.2.GA/project/core/src/main/java/org/hibernate/hql/ast/tree/FromClause.java
Method name: void registerSynchronization(Synchronization) Method name: void addChild(FromClause)
Number of AST nodes: 3 Number of AST nodes: 3
1
if ( synchronizations == null ) {
1
if ( childFromClauses == null ) {
2
			synchronizations = new LinkedList();
2
			
3
		}
4
		synchronizations.add( synchronization
3
childFromClauses = new HashSet();
4
		}
5
 );
5
		childFromClauses.add( fromClause );
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)0.5
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (synchronizations == null)
    1
    if (synchronizations == null)
    1
    if (childFromClauses == null)
    Differences
    Expression1Expression2Difference
    synchronizationschildFromClausesVARIABLE_NAME_MISMATCH
    java.util.LinkedListjava.util.SetVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.util.LinkedList of variable synchronizations does not match with type java.util.Set of variable childFromClauses
    • Make classes java.util.LinkedList and java.util.Set extend a common superclass
    1
    if (childFromClauses == null)
                                                                        
    2
    childFromClauses = new HashSet();
    Preondition Violations
    Unmatched statement childFromClauses=new HashSet(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    2
    childFromClauses = new HashSet();
    2
    synchronizations = new LinkedList();
    2
    synchronizations = new LinkedList();
    Preondition Violations
    Unmatched statement synchronizations=new LinkedList(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
                                                                              
    3
    synchronizations.add(synchronization);
    3
    synchronizations.add(synchronization);
    3
    childFromClauses.add(fromClause);
    Differences
    Expression1Expression2Difference
    synchronizationfromClauseVARIABLE_NAME_MISMATCH
    javax.transaction.Synchronizationorg.hibernate.hql.ast.tree.FromClauseVARIABLE_TYPE_MISMATCH
    synchronizationschildFromClausesVARIABLE_NAME_MISMATCH
    java.util.LinkedListjava.util.SetVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type javax.transaction.Synchronization of variable synchronization does not match with type org.hibernate.hql.ast.tree.FromClause of variable fromClause
    • Make classes javax.transaction.Synchronization and org.hibernate.hql.ast.tree.FromClause extend a common superclass
    Type java.util.LinkedList of variable synchronizations does not match with type java.util.Set of variable childFromClauses
    • Make classes java.util.LinkedList and java.util.Set extend a common superclass
    3
    childFromClauses.add(fromClause);
    Precondition Violations (5)
    Row Violation
    1Type java.util.LinkedList of variable synchronizations does not match with type java.util.Set of variable childFromClauses
    2Unmatched statement childFromClauses=new HashSet(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    3Unmatched statement synchronizations=new LinkedList(); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    4Type javax.transaction.Synchronization of variable synchronization does not match with type org.hibernate.hql.ast.tree.FromClause of variable fromClause
    5Type java.util.LinkedList of variable synchronizations does not match with type java.util.Set of variable childFromClauses