List list = (List) prefixMapping.get(prefix);
if (list == null || list.size() == 0) {
return; // Should not happen
}
List list = (List) prefixMapping.get(prefix);
if (list == null || list.size() == 0) {
return null;
}
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/helper/AntXMLContext.java
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File path: /apache-ant-1.7.0/src/org/apache/tools/ant/helper/AntXMLContext.java
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Method name: void endPrefixMapping(String)
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Method name: String getPrefixMapping(String)
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Number of AST nodes: 3
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Number of AST nodes: 3
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1 | List list = (List) prefixMapping.get(prefix);↵ | | 1 | List list = (List) prefixMapping.get(prefix);↵
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2 | if (list == null || list.size() == 0) {↵ | | 2 | if (list == null || list.size() == 0) {↵
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3 | return; // Should not happen↵ | | 3 | return null;↵
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4 | } | | 4 | }
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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) | 0.2 |
Clones location | Clones are declared in the same class |
Number of node comparisons | 5 |
-
{Non-refactorable}
Mapping Summary
Number of mapped statements | 2 |
Number of unmapped statements in the first code fragment | 1 |
Number of unmapped statements in the second code fragment | 1 |
Time elapsed for statement mapping (ms) | 0.5 |
Clone type | Type 2 |
Mapped Statements
ID |
Statement |
|
ID |
Statement |
1 | List list = (List)prefixMapping.get(prefix); | | 1 | List list = (List)prefixMapping.get(prefix); |
2 | if (list == null || list.size() == 0) | | 2 | if (list == null || list.size() == 0) |
| | | 3 | |
3 | | | | |
Precondition Violations (2)
Row |
Violation |
1 | Unmatched return null; |
2 | Unmatched return; |