synchronized (this) { HashMap temp = (HashMap) map.clone(); Object result = temp.remove(key); map = temp; return (result); }
synchronized (this) { HashMap temp = (HashMap) map.clone(); Object result = temp.put(key, value); map = temp; return (result); }
Clone fragments detected by clone detection tool
File path: /hibernate-distribution-3.3.2.GA/project/core/src/main/java/org/hibernate/util/FastHashMap.java File path: /hibernate-distribution-3.3.2.GA/project/core/src/main/java/org/hibernate/util/FastHashMap.java
Method name: Object remove(Object) Method name: Object put(Object, Object)
Number of AST nodes: 5 Number of AST nodes: 5
1
synchronized (this) {
1
synchronized (this) {
2
			HashMap temp = (HashMap) map.clone();
2
			HashMap temp = (HashMap) map.clone();
3
			Object result = temp.remove(key);
3
			Object result = temp.put(key, value);
4
			map = temp;
4
			map = temp;
5
			return (result);
5
			return (result);
6
		}
6
		}
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)0.1
Clones locationClones are declared in the same class
Number of node comparisons25
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements5
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)1.1
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    synchronized (this)
    1
    synchronized (this)
    2
    HashMap temp = (HashMap)map.clone();
    2
    HashMap temp = (HashMap)map.clone();
    3
    Object result = temp.remove(key);
    3
    Object result = temp.remove(key);
    3
    Object result = temp.put(key, value);
    Differences
    Expression1Expression2Difference
    removeputMETHOD_INVOCATION_NAME_MISMATCH
    temp.remove(key)temp.put(key,value)ARGUMENT_NUMBER_MISMATCH
    Preondition Violations
    Expression temp.remove(key) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression temp.put(key,value) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression temp.remove(key) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    Expression temp.put(key,value) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    3
    Object result = temp.put(key, value);
    4
    map = temp;
    4
    map = temp;
    5
    return (result);
    5
    return (result);
    Precondition Violations (4)
    Row Violation
    1Expression temp.remove(key) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    2Expression temp.put(key,value) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    3Expression temp.remove(key) cannot be parameterized, because it has dependencies to/from statements that will be extracted
    4Expression temp.put(key,value) cannot be parameterized, because it has dependencies to/from statements that will be extracted