try {
SysProperties c = (SysProperties) super.clone();
c.variables = (Vector) variables.clone();
c.propertySets = (Vector) propertySets.clone();
return c;
} catch (CloneNotSupportedException e) {
return null;
}
try {
return System.getProperty(USE_SYSTEM_PROXIES);
} catch (SecurityException e) {
//if you cannot read it, you won't be able to write it either
return null;
}
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/types/CommandlineJava.java
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File path: /apache-ant-1.7.0/src/org/apache/tools/ant/util/ProxySetup.java
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Method name: Object clone()
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Method name: String getSystemProxySetting()
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Number of AST nodes: 5
|
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Number of AST nodes: 2
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|
1 | try {↵ | | 1 | try {↵
|
2 | SysProperties c = (SysProperties) super.clone();↵ | | 2 | return System.getProperty(USE_SYSTEM_PROXIES);↵
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3 | c.variables = (Vector) variables.clone();↵ | | 3 | } catch (Sec↵
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4 | c.propertySets = (Vector) propertySets.clone();↵ | | |
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5 | return c;↵ | | |
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6 | } catch (CloneNotSupportedException e) {↵ | | |
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7 | ↵ | | 4 | urityException e) {↵
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| | | 5 | //if you cannot read it, you won't be able to write it either↵
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8 | return null;↵ | | 6 | return null;↵
|
9 | } | | 7 | }
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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 in different classes |
Number of node comparisons | 10 |
-
{Non-refactorable}
Mapping Summary
Number of mapped statements | 1 |
Number of unmapped statements in the first code fragment | 4 |
Number of unmapped statements in the second code fragment | 1 |
Time elapsed for statement mapping (ms) | 0.5 |
Clone type | Type 3 |
Mapped Statements
ID |
Statement |
|
ID |
Statement |
1 | try | | 1 | try |
| | | 2 | return System.getProperty(USE_SYSTEM_PROXIES); |
2 | SysProperties c = (SysProperties)super.clone(); | | | |
3 | c.variables = (Vector)variables.clone(); | | | |
4 | c.propertySets = (Vector)propertySets.clone(); | | | |
5 | | | | |
Precondition Violations (3)
Row |
Violation |
1 | Unmatched return System.getProperty(USE_SYSTEM_PROXIES); |
2 | Unmatched statement SysProperties c=(SysProperties)super.clone(); cannot be moved before or after the extracted code, because it throws exception(s) that should be caught by a try block that will be extracted |
3 | Unmatched return c; |