if (classVariables == null) { classVariables = new Hashtable<String, IRubyObject>(4); } return classVariables;
if (value == null) { return warnMultiReturnNil(ruby); } return value;
Clone fragments detected by clone detection tool
File path: /jruby-1.4.0/src/org/jruby/RubyModule.java File path: /jruby-1.4.0/src/org/jruby/runtime/CompiledBlock.java
Method name: Map getClassVariables() Method name: IRubyObject defaultArgLogic(Ruby, IRubyObject)
Number of AST nodes: 3 Number of AST nodes: 3
1
if (classVariables == null) {
1
if (value == null) {
2
            classVariables = new Hashtable<String, IRubyObject>(4);
2
            return warnMultiReturnNil(ruby);
3
        }
3
        }
4
        return classVariables;
4
        return value;
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 (classVariables == null)
    1
    if (classVariables == null)
    1
    if (value == null)
    Differences
    Expression1Expression2Difference
    classVariablesvalueVARIABLE_NAME_MISMATCH
    java.util.Maporg.jruby.runtime.builtin.IRubyObjectVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.util.Map<java.lang.String,org.jruby.runtime.builtin.IRubyObject> of variable classVariables does not match with type org.jruby.runtime.builtin.IRubyObject of variable value
    • Make classes java.util.Map and org.jruby.runtime.builtin.IRubyObject extend a common superclass
    1
    if (value == null)
                                                                          
    2
    return warnMultiReturnNil(ruby);
    Preondition Violations
    Unmatched return warnMultiReturnNil(ruby);
    2
    return warnMultiReturnNil(ruby);
    2
    classVariables = new Hashtable<String, IRubyObject>(4);
                                                                                                                  
                                    
    3
    return value;
    Preondition Violations
    Unmatched return value;
    3
    return value;
    3
    return classVariables;
    3
    return classVariables;
    Preondition Violations
    Unmatched return classVariables;
                                                      
    Precondition Violations (4)
    Row Violation
    1Type java.util.Map<java.lang.String,org.jruby.runtime.builtin.IRubyObject> of variable classVariables does not match with type org.jruby.runtime.builtin.IRubyObject of variable value
    2Unmatched return warnMultiReturnNil(ruby);
    3Unmatched return value;
    4Unmatched return classVariables;