if (encoding == null) { encoding = Encoding.load(encodingName); } return encoding;
if (classVariables == null) { classVariables = new Hashtable<String, IRubyObject>(4); } return classVariables;
Clone fragments detected by clone detection tool
File path: /jruby-1.4.0/src/org/jruby/util/KCode.java File path: /jruby-1.4.0/src/org/jruby/RubyModule.java
Method name: Encoding getEncoding() Method name: Map getClassVariables()
Number of AST nodes: 3 Number of AST nodes: 3
1
if (encoding == null) {
1
if (classVariables == null) {
2
            encoding = Encoding.load(encodingName);
2
            classVariables = new Hashtable<String, IRubyObject>(4);
3
        }
3
        }
4
        return encoding;
4
        return classVariables;
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 in different classes
Number of node comparisons5
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements1
    Number of unmapped statements in the first code fragment2
    Number of unmapped statements in the second code fragment2
    Time elapsed for statement mapping (ms)0.5
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (encoding == null)
    1
    if (encoding == null)
    1
    if (classVariables == null)
    Differences
    Expression1Expression2Difference
    encodingclassVariablesVARIABLE_NAME_MISMATCH
    org.jcodings.Encodingjava.util.MapVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jcodings.Encoding of variable encoding does not match with type java.util.Map<java.lang.String,org.jruby.runtime.builtin.IRubyObject> of variable classVariables
    • Make classes org.jcodings.Encoding and java.util.Map extend a common superclass
    1
    if (classVariables == null)
                                                                                                                  
    2
    classVariables = new Hashtable<String, IRubyObject>(4);
    2
    encoding = Encoding.load(encodingName);
                                                                                    
                                                      
    3
    return classVariables;
    Preondition Violations
    Unmatched return classVariables;
    3
    return classVariables;
    3
    return encoding;
    3
    return encoding;
    Preondition Violations
    Unmatched return encoding;
                                          
    Precondition Violations (3)
    Row Violation
    1Type org.jcodings.Encoding of variable encoding does not match with type java.util.Map<java.lang.String,org.jruby.runtime.builtin.IRubyObject> of variable classVariables
    2Unmatched return classVariables;
    3Unmatched return encoding;