if (id == null) throw new IllegalArgumentException("id == null"); if (map.containsKey(id)) return (IExtension) map.get(id); return null;
if (id == null) throw new IllegalArgumentException("id == null"); if (handlerMap.containsKey(id)) return (IExtensionHandler) handlerMap.get(id); else throw new PluginHandlerNotFoundException(id);
Clone fragments detected by clone detection tool
File path: /columba-1.4-src/core/src/main/java/org/columba/core/plugin/ExtensionHandler.java File path: /columba-1.4-src/core/src/main/java/org/columba/core/plugin/PluginManager.java
Method name: IExtension getExtension(String) Method name: IExtensionHandler getExtensionHandler(String)
Number of AST nodes: 5 Number of AST nodes: 5
1
if (id == null)
1
if (id == null)
2
			throw new IllegalArgumentException("id == null");
2
			throw new IllegalArgumentException("id == null");
3
		if (map.containsKey(id))
3
		if (handlerMap.containsKey(id))
4
			return (IExtension) map.get(id);
4
			return (IExtension
5
		return null
5
Handler) handlerMap.get(id);
6
		else
6
;
7
			throw new PluginHandlerNotFoundException(id);
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)0.2
Clones locationClones are in different classes
Number of node comparisons17
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements3
    Number of unmapped statements in the first code fragment2
    Number of unmapped statements in the second code fragment2
    Time elapsed for statement mapping (ms)0.6
    Clone typeType 3
    Mapped Statements
    ID Statement ID Statement
    1
    if (id == null)
    1
    if (id == null)
    2
    throw new IllegalArgumentException("id == null");
    2
    throw new IllegalArgumentException("id == null");
    3
    if (map.containsKey(id))
    3
    if (map.containsKey(id))
    3
    if (handlerMap.containsKey(id))
    Differences
    Expression1Expression2Difference
    maphandlerMapVARIABLE_NAME_MISMATCH
    java.util.Hashtablejava.util.HashtableVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.util.Hashtable of variable map does not match with type java.util.Hashtable<java.lang.String,org.columba.api.plugin.IExtensionHandler> of variable handlerMap
    • Make classes java.util.Hashtable and java.util.Hashtable extend a common superclass
    3
    if (handlerMap.containsKey(id))
                                                                                                    
    4
    return (IExtensionHandler)handlerMap.get(id);
    Preondition Violations
    Unmatched return (IExtensionHandler)handlerMap.get(id);
    4
    return (IExtensionHandler)handlerMap.get(id);
    4
    return (IExtension)map.get(id);
    4
    return (IExtension)map.get(id);
    Preondition Violations
    Unmatched return (IExtension)map.get(id);
                                                                        
            
    else
                                                                                                    
    5
    throw new PluginHandlerNotFoundException(id);
    Preondition Violations
    Unmatched throw new PluginHandlerNotFoundException(id);
    5
    throw new PluginHandlerNotFoundException(id);
    5
    return null;
    5
    return null;
    Preondition Violations
    Unmatched return null;
                                  
    Precondition Violations (5)
    Row Violation
    1Type java.util.Hashtable of variable map does not match with type java.util.Hashtable<java.lang.String,org.columba.api.plugin.IExtensionHandler> of variable handlerMap
    2Unmatched return (IExtensionHandler)handlerMap.get(id);
    3Unmatched return (IExtension)map.get(id);
    4Unmatched throw new PluginHandlerNotFoundException(id);
    5Unmatched return null;