if (dataStorage == null) {
dataStorage = new XmlDataStorage(this);
}
return dataStorage;
if (instance == null) {
instance = new HeaderItemDNDManager();
}
return instance;
Clone fragments detected by clone detection tool
File path: /columba-1.4-src/contact/src/main/java/org/columba/addressbook/folder/AddressbookFolder.java
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File path: /columba-1.4-src/contact/src/main/java/org/columba/addressbook/gui/list/HeaderItemDNDManager.java
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Method name: DataStorage getDataStorageInstance()
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Method name: HeaderItemDNDManager getInstance()
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Number of AST nodes: 3
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Number of AST nodes: 3
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1 | if (dataStorage == null) {↵ | | 1 | if (instance == null) {
↵
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2 | dataStorage = new XmlDataStorage(this);↵ | | 2 | instance = new HeaderItemDNDManager();
↵
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3 | }↵ | | 3 | }↵
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| | | 4 |
↵
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4 | return dataStorage; | | 5 | return instance;
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See real code fragment |
|
See real code fragment |
Summary
Number of common nesting structure subtrees | 1 |
Number of refactorable cases | 0 |
Number of non-refactorable cases | 1 |
Time elapsed for finding largest common nesting structure subtrees (ms) | 0.1 |
Clones location | Clones are in different classes |
Number of node comparisons | 5 |
-
{Non-refactorable}
Mapping Summary
Number of mapped statements | 1 |
Number of unmapped statements in the first code fragment | 2 |
Number of unmapped statements in the second code fragment | 2 |
Time elapsed for statement mapping (ms) | 0.4 |
Clone type | Type 2 |
Mapped Statements
ID |
Statement |
|
ID |
Statement |
1 | if (dataStorage == null) | | 1 | if (instance == null) |
| | | 2 | instance = new HeaderItemDNDManager(); |
2 | dataStorage = new XmlDataStorage(this); | | | |
| | | 3 | return instance; |
3 | return dataStorage; | | | |
Precondition Violations (3)
Row |
Violation |
1 | Type org.columba.addressbook.folder.DataStorage of variable dataStorage does not match with type org.columba.addressbook.gui.list.HeaderItemDNDManager of variable instance |
2 | Unmatched return instance; |
3 | Unmatched return dataStorage; |