ConnectionChangedEvent e = new ConnectionChangedEvent(this, account, status); // Guaranteed to return a non-null array Object[] listeners = listenerList.getListenerList(); // Process the listeners last to first, notifying // those that are interested in this event for (int i = listeners.length - 2; i >= 0; i -= 2) { if (listeners[i] == IConnectionChangedListener.class) { ((IConnectionChangedListener) listeners[i + 1]) .connectionChanged(e); } }
ITagEvent e = new TagEvent(this, id); // Guaranteed to return a non-null array Object[] listeners = listenerList.getListenerList(); // Process the listeners last to first, notifying // those that are interested in this event for (int i = listeners.length - 2; i >= 0; i -= 2) { if (listeners[i] == ITagListener.class) { ((ITagListener) listeners[i + 1]).tagDeleted(e); } }
Clone fragments detected by clone detection tool
File path: /columba-1.4-src/plugins/org.columba.chat.altura/src/org/columba/chat/Connection.java File path: /columba-1.4-src/core/src/main/java/org/columba/core/tagging/TagManager.java
Method name: void fireSelectionChanged(IAccount, STATUS) Method name: void fireTagDeletedEvent(String)
Number of AST nodes: 5 Number of AST nodes: 5
1
ConnectionChangedEvent e = new ConnectionChangedEvent(this, account, status);
1
ITagEvent e = new TagEvent(this, id);
2

2
		// Guaranteed to return a non-null array
3
		// Guaranteed to return a non-null array
3
		Object[] listeners = listenerList.getListenerList();
4
		Object[] listeners = listenerList.getListenerList();
5

4
		// Process the listeners last to first, notifying
6
		// Process the listeners last to first, notifying
5
		// those that are interested in this event
7
		// those that are interested in this event
6
		for (int i = listeners.length - 2; i >= 0; i -= 2) {
8
		for (int i = listeners.length - 2; i >= 0; i -= 2) {
7
			if (listeners[i] == IConnectionChangedListener.class) {
9
			if (listeners[i] == ITagListener.class) {
8
				((IConnectionChangedListener) listeners[i + 1])
10
				((ITagListener) listeners[i + 1])
9
						.connectionChanged(e);
11
.tagDeleted(e);
10
			}
12
			}
11
		}
13
		}
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)0.5
Clones locationClones are in different classes
Number of node comparisons9
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements4
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment1
    Time elapsed for statement mapping (ms)1.6
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
                                                                              
    1
    ITagEvent e = new TagEvent(this, id);
    Preondition Violations
    Unmatched statement ITagEvent e=new TagEvent(this,id); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    1
    ITagEvent e = new TagEvent(this, id);
    1
    ConnectionChangedEvent e = new ConnectionChangedEvent(this, account, status);
    1
    ConnectionChangedEvent e = new ConnectionChangedEvent(this, account, status);
    Preondition Violations
    Unmatched statement ConnectionChangedEvent e=new ConnectionChangedEvent(this,account,status); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
                                                                                                                                                            
    2
    Object[] listeners = listenerList.getListenerList();
    2
    Object[] listeners = listenerList.getListenerList();
    3
    for (int i = listeners.length - 2; i >= 0; i -= 2)
    3
    for (int i = listeners.length - 2; i >= 0; i -= 2)
    4
    if (listeners[i] == IConnectionChangedListener.class)
    4
    if (listeners[i] == IConnectionChangedListener.class)
    4
    if (listeners[i] == ITagListener.class)
    Differences
    Expression1Expression2Difference
    IConnectionChangedListener.classITagListener.classLITERAL_VALUE_MISMATCH
    4
    if (listeners[i] == ITagListener.class)
    5
    ((IConnectionChangedListener)listeners[i + 1]).connectionChanged(e);
    5
    ((IConnectionChangedListener)listeners[i + 1]).connectionChanged(e);
    5
    ((ITagListener)listeners[i + 1]).tagDeleted(e);
    Differences
    Expression1Expression2Difference
    org.columba.chat.conn.api.ConnectionChangedEventorg.columba.core.tagging.api.ITagEventVARIABLE_TYPE_MISMATCH
    connectionChangedtagDeletedMETHOD_INVOCATION_NAME_MISMATCH
    org.columba.chat.conn.api.IConnectionChangedListenerorg.columba.core.tagging.api.ITagListenerVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.columba.chat.conn.api.ConnectionChangedEvent of variable e does not match with type org.columba.core.tagging.api.ITagEvent of variable e
    • Make classes org.columba.chat.conn.api.ConnectionChangedEvent and org.columba.core.tagging.api.ITagEvent extend a common superclass
    Expression ((IConnectionChangedListener)listeners[i + 1]).connectionChanged(e) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression ((ITagListener)listeners[i + 1]).tagDeleted(e) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression ((IConnectionChangedListener)listeners[i + 1]).connectionChanged(e) is a void method call, and thus it cannot be parameterized
    Expression ((ITagListener)listeners[i + 1]).tagDeleted(e) is a void method call, and thus it cannot be parameterized
    Expression (IConnectionChangedListener)listeners[i + 1] cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression (ITagListener)listeners[i + 1] cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type org.columba.chat.conn.api.IConnectionChangedListener does not match with type org.columba.core.tagging.api.ITagListener
    • Make classes org.columba.chat.conn.api.IConnectionChangedListener and org.columba.core.tagging.api.ITagListener extend a common superclass
    5
    ((ITagListener)listeners[i + 1]).tagDeleted(e);
    Precondition Violations (11)
    Row Violation
    1Unmatched statement ITagEvent e=new TagEvent(this,id); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    2Unmatched statement ConnectionChangedEvent e=new ConnectionChangedEvent(this,account,status); cannot be moved before the extracted code, because it has control dependencies from statements that will be extracted
    3Type org.columba.chat.conn.api.ConnectionChangedEvent of variable e does not match with type org.columba.core.tagging.api.ITagEvent of variable e
    4Expression ((IConnectionChangedListener)listeners[i + 1]).connectionChanged(e) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    5Expression ((ITagListener)listeners[i + 1]).tagDeleted(e) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    6Expression ((IConnectionChangedListener)listeners[i + 1]).connectionChanged(e) is a void method call, and thus it cannot be parameterized
    7Expression ((ITagListener)listeners[i + 1]).tagDeleted(e) is a void method call, and thus it cannot be parameterized
    8Expression (IConnectionChangedListener)listeners[i + 1] cannot be parameterized, because it has dependencies to/from statements that will be extracted
    9Expression (ITagListener)listeners[i + 1] cannot be parameterized, because it has dependencies to/from statements that will be extracted
    10Type org.columba.chat.conn.api.IConnectionChangedListener does not match with type org.columba.core.tagging.api.ITagListener
    11The refactoring of the clones is infeasible, because classes org.columba.chat.Connection and org.columba.core.tagging.TagManager do not have a common superclass