for (int i = listeners.length - 2; i >= 0; i -= 2) { if (listeners[i] == IFolderListener.class) { ((IFolderListener) listeners[i + 1]).folderRemoved(e); listenerList.remove(IFolderListener.class, (IFolderListener) listeners[i + 1]); } }
for (int i = listeners.length - 2; i >= 0; i -= 2) { if (listeners[i] == IMailCheckingListener.class) { ((IMailCheckingListener) listeners[i + 1]).newMessageArrived(e); } }
Clone fragments detected by clone detection tool
File path: /columba-1.4-src/mail/src/main/java/org/columba/mail/folder/AbstractFolder.java File path: /columba-1.4-src/mail/src/main/java/org/columba/mail/mailchecking/MailCheckingManager.java
Method name: void fireFolderRemoved() Method name: void fireNewMessageArrived(IMailFolderCommandReference)
Number of AST nodes: 4 Number of AST nodes: 3
1
for (int i = listeners.length - 2; i >= 0; i -= 2) {
1
for (int i = listeners.length - 2; i >= 0; i -= 2) {
2
			if (listeners[i] == IFolderListener.class) {
2
			if (listeners[i] == IMailCheckingListener.class) {
3
				((IFolderListener) listeners[i + 1]).folderRemoved(e);
3
				((IMailCheckingListener) listeners[i + 1]).
4
				listenerList.remove(IFolderListener.class,
5
						(IFolderListener) listeners[i + 1]);
4
newMessageArrived(e);
6
			}
5
			}
7
		}
6
		}
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 comparisons7
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements3
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)1.7
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    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] == IFolderListener.class)
    4
    if (listeners[i] == IFolderListener.class)
    4
    if (listeners[i] == IMailCheckingListener.class)
    Differences
    Expression1Expression2Difference
    IFolderListener.classIMailCheckingListener.classLITERAL_VALUE_MISMATCH
    4
    if (listeners[i] == IMailCheckingListener.class)
    5
    ((IFolderListener)listeners[i + 1]).folderRemoved(e);
    5
    ((IFolderListener)listeners[i + 1]).folderRemoved(e);
    5
    ((IMailCheckingListener)listeners[i + 1]).newMessageArrived(e);
    Differences
    Expression1Expression2Difference
    org.columba.mail.folder.event.FolderEventorg.columba.mail.mailchecking.MailCheckingEventSUBCLASS_TYPE_MISMATCH
    folderRemovednewMessageArrivedMETHOD_INVOCATION_NAME_MISMATCH
    org.columba.mail.folder.event.IFolderListenerorg.columba.mail.mailchecking.IMailCheckingListenerVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Expression ((IFolderListener)listeners[i + 1]).folderRemoved(e) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression ((IMailCheckingListener)listeners[i + 1]).newMessageArrived(e) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression ((IFolderListener)listeners[i + 1]).folderRemoved(e) is a void method call, and thus it cannot be parameterized
    Expression ((IMailCheckingListener)listeners[i + 1]).newMessageArrived(e) is a void method call, and thus it cannot be parameterized
    Expression (IFolderListener)listeners[i + 1] cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression (IMailCheckingListener)listeners[i + 1] cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Type org.columba.mail.folder.event.IFolderListener does not match with type org.columba.mail.mailchecking.IMailCheckingListener
    • Make classes org.columba.mail.folder.event.IFolderListener and org.columba.mail.mailchecking.IMailCheckingListener extend a common superclass
    5
    ((IMailCheckingListener)listeners[i + 1]).newMessageArrived(e);
    6
    listenerList.remove(IFolderListener.class, (IFolderListener)listeners[i + 1]);
    6
    listenerList.remove(IFolderListener.class, (IFolderListener)listeners[i + 1]);
    Preondition Violations
    Unmatched statement listenerList.remove(IFolderListener.class,(IFolderListener)listeners[i + 1]); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
                                                                                                                                                                    
    Precondition Violations (10)
    Row Violation
    1Expression ((IFolderListener)listeners[i + 1]).folderRemoved(e) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    2Expression ((IMailCheckingListener)listeners[i + 1]).newMessageArrived(e) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    3Expression ((IFolderListener)listeners[i + 1]).folderRemoved(e) is a void method call, and thus it cannot be parameterized
    4Expression ((IMailCheckingListener)listeners[i + 1]).newMessageArrived(e) is a void method call, and thus it cannot be parameterized
    5Expression (IFolderListener)listeners[i + 1] cannot be parameterized, because it has dependencies to/from statements that will be extracted
    6Expression (IMailCheckingListener)listeners[i + 1] cannot be parameterized, because it has dependencies to/from statements that will be extracted
    7Type org.columba.mail.folder.event.IFolderListener does not match with type org.columba.mail.mailchecking.IMailCheckingListener
    8Unmatched statement listenerList.remove(IFolderListener.class,(IFolderListener)listeners[i + 1]); cannot be moved before or after the extracted code, because it has dependencies to/from statements that will be extracted
    9Clone fragment #1 returns variables i , while Clone fragment #2 returns variables
    10The refactoring of the clones is infeasible, because classes org.columba.mail.folder.AbstractFolder and org.columba.mail.mailchecking.MailCheckingManager do not have a common superclass