if (jabberId == null) throw new IllegalArgumentException("jabberId == null"); if (map.containsKey(jabberId)) return (BuddyStatus) map.get(jabberId); return null;
if (id == null) throw new IllegalArgumentException("id == null"); if (map.containsKey(id)) return (IExtension) map.get(id); return null;
Clone fragments detected by clone detection tool
File path: /columba-1.4-src/plugins/org.columba.chat.altura/src/org/columba/chat/model/BuddyList.java File path: /columba-1.4-src/core/src/main/java/org/columba/core/plugin/ExtensionHandler.java
Method name: BuddyStatus getBuddy(String) Method name: IExtension getExtension(String)
Number of AST nodes: 5 Number of AST nodes: 5
1
if (jabberId == null)
1
if (id == null)
2
			throw new IllegalArgumentException("jabberId == null");
2
			throw new IllegalArgumentException("id == null");
3
		if (map.containsKey(jabberId))
3
		if (map.containsKey(id))
4
			return (BuddyStatus) map.get(jabberId);
4
			return (IExtension) map.get(id);
5
		return null;
5
		return null;
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)0.3
Clones locationClones are in different classes
Number of node comparisons14
  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)0.7
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (jabberId == null)
    1
    if (jabberId == null)
    1
    if (id == null)
    Differences
    Expression1Expression2Difference
    jabberIdidVARIABLE_NAME_MISMATCH
    1
    if (id == null)
    2
    throw new IllegalArgumentException("jabberId == null");
    2
    throw new IllegalArgumentException("jabberId == null");
    2
    throw new IllegalArgumentException("id == null");
    Differences
    Expression1Expression2Difference
    "jabberId == null""id == null"LITERAL_VALUE_MISMATCH
    2
    throw new IllegalArgumentException("id == null");
    3
    if (map.containsKey(jabberId))
    3
    if (map.containsKey(jabberId))
    3
    if (map.containsKey(id))
    Differences
    Expression1Expression2Difference
    jabberIdidVARIABLE_NAME_MISMATCH
    java.util.Mapjava.util.HashtableVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.util.Map of variable map does not match with type java.util.Hashtable of variable map
    • Make classes java.util.Map and java.util.Hashtable extend a common superclass
    3
    if (map.containsKey(id))
                                                                        
    4
    return (IExtension)map.get(id);
    Preondition Violations
    Unmatched return (IExtension)map.get(id);
    4
    return (IExtension)map.get(id);
    4
    return (BuddyStatus)map.get(jabberId);
                                                                                      
    5
    return null;
    5
    return null;
    Precondition Violations (2)
    Row Violation
    1Type java.util.Map of variable map does not match with type java.util.Hashtable of variable map
    2Unmatched return (IExtension)map.get(id);