if (runner == null) { runner = new Runner(); } return runner;
if (fixnum == null) { return fixnum = RubyFixnum.newFixnum(runtime, value); } return fixnum;
Clone fragments detected by clone detection tool
File path: /jruby-1.4.0/test/org/jruby/test/Runner.java File path: /jruby-1.4.0/src/org/jruby/ast/FixnumNode.java
Method name: Runner getRunner() Method name: RubyFixnum getFixnum(Ruby)
Number of AST nodes: 3 Number of AST nodes: 3
1
if (runner == null) { runner = new Runner(); }
1
if (fixnum == null) {
2
            return fixnum = RubyFixnum.newFixnum(runtime, value);
3
        }
2
    return runner;
4
        return fixnum;
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)0.4
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (runner == null)
    1
    if (runner == null)
    1
    if (fixnum == null)
    Differences
    Expression1Expression2Difference
    runnerfixnumVARIABLE_NAME_MISMATCH
    org.jruby.test.Runnerorg.jruby.RubyFixnumVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jruby.test.Runner of variable runner does not match with type org.jruby.RubyFixnum of variable fixnum
    • Make classes org.jruby.test.Runner and org.jruby.RubyFixnum extend a common superclass
    1
    if (fixnum == null)
                                                                                                              
    2
    return fixnum = RubyFixnum.newFixnum(runtime, value);
    2
    runner = new Runner();
                                                  
                                      
    3
    return fixnum;
    Preondition Violations
    Unmatched return fixnum;
    3
    return fixnum;
    3
    return runner;
    3
    return runner;
    Preondition Violations
    Unmatched return runner;
                                      
    Precondition Violations (3)
    Row Violation
    1Type org.jruby.test.Runner of variable runner does not match with type org.jruby.RubyFixnum of variable fixnum
    2Unmatched return fixnum;
    3Unmatched return runner;