Class unsafeClass = Class.forName("sun.misc.Unsafe"); Field field = unsafeClass.getDeclaredField("theUnsafe"); field.setAccessible(true); // if we get here, the class and field exist; construct our Unsafe impl // that calls it directly unsafe = (Unsafe)Class.forName("org.jruby.util.unsafe.SunUnsafeWrapper").newInstance();
Class unsafeClass = Class.forName("sun.misc.Unsafe"); Field field = unsafeClass.getDeclaredField("theUnsafe"); field.setAccessible(true); this.sunUnsafe = (sun.misc.Unsafe)field.get(null);
Clone fragments detected by clone detection tool
File path: /jruby-1.4.0/src/org/jruby/util/unsafe/UnsafeFactory.java File path: /jruby-1.4.0/src/org/jruby/util/unsafe/SunUnsafeWrapper.java
Method name: Unsafe loadUnsafe() Method name: void SunUnsafeWrapper()
Number of AST nodes: 4 Number of AST nodes: 4
1
Class unsafeClass = Class.forName("sun.misc.Unsafe");
1
Class unsafeClass = Class.forName("sun.misc.Unsafe");
2
            Field field = unsafeClass.getDeclaredField("theUnsafe");
2
            Field field = unsafeClass.getDeclaredField("theUnsafe");
3
            field.setAccessible(true);
3
            field.setAccessible(true);
4
            // if we get here, the class and field exist; construct our Unsafe impl
4
            
5
            // that calls it directly
6
            unsafe = (Unsafe)Class.forName("org.jruby.util.unsafe.SunUnsafeWrapper").newInstance();
5
this.sunUnsafe = (sun.misc.Unsafe)field.get(null);
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)0.0
Clones locationClones are in different classes
Number of node comparisons10
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements3
    Number of unmapped statements in the first code fragment1
    Number of unmapped statements in the second code fragment1
    Time elapsed for statement mapping (ms)0.0
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    6
    Class unsafeClass = Class.forName("sun.misc.Unsafe");
    2
    Class unsafeClass = Class.forName("sun.misc.Unsafe");
    7
    Field field = unsafeClass.getDeclaredField("theUnsafe");
    3
    Field field = unsafeClass.getDeclaredField("theUnsafe");
    8
    field.setAccessible(true);
    4
    field.setAccessible(true);
    Precondition Violations (1)
    Row Violation
    1Clone fragment #1 returns variables , while Clone fragment #2 returns variables field