if (value == null) { return warnMultiReturnNil(ruby); } return value;
if (threadGroup == null) { return getRuntime().getNil(); } return threadGroup;
Clone fragments detected by clone detection tool
File path: /jruby-1.4.0/src/org/jruby/runtime/CompiledBlock.java File path: /jruby-1.4.0/src/org/jruby/RubyThread.java
Method name: IRubyObject defaultArgLogic(Ruby, IRubyObject) Method name: IRubyObject group()
Number of AST nodes: 3 Number of AST nodes: 3
1
if (value == null) {
1
if (threadGroup == null) {
2
            return warnMultiReturnNil(ruby);
2
        	return getRuntime().getNil();
3
        }
3
        }
4
        return value
4
        
5
;
5
        return threadGroup;
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 statements2
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment1
    Time elapsed for statement mapping (ms)1.0
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    if (value == null)
    1
    if (value == null)
    1
    if (threadGroup == null)
    Differences
    Expression1Expression2Difference
    valuethreadGroupVARIABLE_NAME_MISMATCH
    org.jruby.runtime.builtin.IRubyObjectorg.jruby.RubyThreadGroupVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.jruby.runtime.builtin.IRubyObject of variable value does not match with type org.jruby.RubyThreadGroup of variable threadGroup
    • Make classes org.jruby.runtime.builtin.IRubyObject and org.jruby.RubyThreadGroup extend a common superclass
    1
    if (threadGroup == null)
    2
    return warnMultiReturnNil(ruby);
    2
    return warnMultiReturnNil(ruby);
    2
    return getRuntime().getNil();
    Differences
    Expression1Expression2Difference
    warnMultiReturnNilgetNilMETHOD_INVOCATION_NAME_MISMATCH
    warnMultiReturnNil(ruby)getRuntime().getNil()ARGUMENT_NUMBER_MISMATCH
    getRuntime()MISSING_METHOD_INVOCATION_EXPRESSION
    2
    return getRuntime().getNil();
                                                
    3
    return threadGroup;
    Preondition Violations
    Unmatched return threadGroup;
    3
    return threadGroup;
    3
    return value;
    3
    return value;
    Preondition Violations
    Unmatched return value;
                                    
    Precondition Violations (3)
    Row Violation
    1Type org.jruby.runtime.builtin.IRubyObject of variable value does not match with type org.jruby.RubyThreadGroup of variable threadGroup
    2Unmatched return threadGroup;
    3Unmatched return value;