Class typeClass = scriptObject.getClass(); String typePathString = p(typeClass); String mname = typeClass.getName() + "BlockCallback$" + method + "xx1"; String mnamePath = typePathString + "BlockCallback$" + method + "xx1"; synchronized (classLoader) { Class c = tryClass(mname); try { if (c == null) { ClassWriter cw = createBlockCtor(mnamePath, typeClass); SkinnyMethodAdapter mv = startBlockCall(cw); mv.aload(0); mv.getfield(mnamePath, "$scriptObject", ci(typeClass)); mv.aload(1); mv.aload(2); mv.aload(3); mv.invokestatic(typePathString, method, sig( RubyKernel.IRUBY_OBJECT, "L" + typePathString + ";", ThreadContext.class, RubyKernel.IRUBY_OBJECT, IRubyObject.class)); mv.areturn(); mv.visitMaxs(2, 3); c = endCall(cw, mv, mname); } CompiledBlockCallback ic = (CompiledBlockCallback) c.getConstructor(Object.class).newInstance(scriptObject); return ic; } catch (IllegalArgumentException e) { throw e; } catch (Exception e) { e.printStackTrace(); throw new IllegalArgumentException(e.getMessage()); } }
Class typeClass = scriptObject.getClass(); String typePathString = p(typeClass); String mname = typeClass.getName() + "BlockCallback$" + method + "xx1"; String mnamePath = typePathString + "BlockCallback$" + method + "xx1"; synchronized (classLoader) { Class c = tryClass(mname); try { if (c == null) { ClassWriter cw = createBlockCtor(mnamePath, typeClass); SkinnyMethodAdapter mv = startBlockCall(cw); mv.aload(0); mv.getfield(mnamePath, "$scriptObject", ci(typeClass)); mv.aload(1); mv.aload(2); mv.aload(3); mv.invokestatic(typePathString, method, sig( RubyKernel.IRUBY_OBJECT, "L" + typePathString + ";", ThreadContext.class, RubyKernel.IRUBY_OBJECT, IRubyObject.class)); mv.areturn(); mv.visitMaxs(2, 3); c = endCall(cw, mv, mname); } CompiledBlockCallback ic = (CompiledBlockCallback) c.getConstructor(Object.class).newInstance(scriptObject); return ic; } catch (IllegalArgumentException e) { throw e; } catch (Exception e) { e.printStackTrace(); throw new IllegalArgumentException(e.getMessage()); } }
Clone fragments detected by clone detection tool
File path: /jruby-1.4.0/src/org/jruby/runtime/callback/InvocationCallbackFactory.java File path: /jruby-1.4.0/src/org/jruby/internal/runtime/methods/InvocationMethodFactory.java
Method name: CompiledBlockCallback getBlockCallback(String, Object) Method name: CompiledBlockCallback getBlockCallback(String, Object)
Number of AST nodes: 21 Number of AST nodes: 21
1
Class typeClass = scriptObject.getClass();
1
Class typeClass = scriptObject.getClass();
2
        String typePathString = p(typeClass);
2
        String typePathString = p(typeClass);
3
        String mname = typeClass.getName() + "BlockCallback$" + method + "xx1";
3
        String mname = typeClass.getName() + "BlockCallback$" + method + "xx1";
4
        String mnamePath = typePathString + "BlockCallback$" + method + "xx1";
4
        String mnamePath = typePathString + "BlockCallback$" + method + "xx1";
5
        synchronized (classLoader) {
5
        synchronized (classLoader) {
6
            Class c = tryClass(mname);
6
            Class c = tryClass(mname);
7
            try {
7
            try {
8
                if (c == null) {
8
                if (c == null) {
9
                    ClassWriter cw = createBlockCtor(mnamePath, typeClass);
9
                    ClassWriter cw = createBlockCtor(mnamePath, typeClass);
10
                    SkinnyMethodAdapter mv = startBlockCall(cw);
10
                    SkinnyMethodAdapter mv = startBlockCall(cw);
11
                    mv.aload(0);
11
                    mv.aload(0);
12
                    mv.getfield(mnamePath, "$scriptObject", ci(typeClass));
12
                    mv.getfield(mnamePath, "$scriptObject", ci(typeClass));
13
                    mv.aload(1);
13
                    mv.aload(1);
14
                    mv.aload(2);
14
                    mv.aload(2);
15
                    mv.aload(3);
15
                    mv.aload(3);
16
                    mv.invokestatic(typePathString, method, sig(
16
                    mv.invokestatic(typePathString, method, sig(
17
                            RubyKernel.IRUBY_OBJECT, "L" + typePathString + ";", ThreadContext.class,
17
                            RubyKernel.IRUBY_OBJECT, "L" + typePathString + ";", ThreadContext.class,
18
                                    RubyKernel.IRUBY_OBJECT, IRubyObject.class));
18
                                    RubyKernel.IRUBY_OBJECT, IRubyObject.class));
19
                    mv.areturn();
19
                    mv.areturn();
20
                    
21
                    mv.visitMaxs(2, 3);
20
                    mv.visitMaxs(2, 3);
22
                    c = endCall(cw, mv, mname);
21
                    c = endCall(cw, mv, mname);
23
                }
22
                }
24
                CompiledBlockCallback ic = (CompiledBlockCallback) c.getConstructor(Object.class).newInstance(scriptObject);
23
                CompiledBlockCallback ic = (CompiledBlockCallback) c.getConstructor(Object.class).newInstance(scriptObject);
25
                return ic;
24
                return ic;
26
            } catch (IllegalArgumentException e) {
25
            } catch (IllegalArgumentException e) {
27
                throw e;
26
                throw e;
28
            } catch (Exception e) {
27
            } catch (Exception e) {
29
                e.printStackTrace();
28
                e.printStackTrace();
30
                throw new IllegalArgumentException(e.getMessage());
29
                throw new IllegalArgumentException(e.getMessage());
31
            }
30
            }
32
        }
31
        }
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)1.4
Clones locationClones are in different classes
Number of node comparisons167
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements21
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)52.8
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    1
    Class typeClass = scriptObject.getClass();
    1
    Class typeClass = scriptObject.getClass();
    2
    String typePathString = p(typeClass);
    2
    String typePathString = p(typeClass);
    3
    String mname = typeClass.getName() + "BlockCallback$" + method + "xx1";
    3
    String mname = typeClass.getName() + "BlockCallback$" + method + "xx1";
    4
    String mnamePath = typePathString + "BlockCallback$" + method + "xx1";
    4
    String mnamePath = typePathString + "BlockCallback$" + method + "xx1";
    5
    synchronized (classLoader)
    5
    synchronized (classLoader)
    6
    Class c = tryClass(mname);
    6
    Class c = tryClass(mname);
    7
    try
    7
    try
    8
    if (c == null)
    8
    if (c == null)
    9
    ClassWriter cw = createBlockCtor(mnamePath, typeClass);
    9
    ClassWriter cw = createBlockCtor(mnamePath, typeClass);
    10
    SkinnyMethodAdapter mv = startBlockCall(cw);
    10
    SkinnyMethodAdapter mv = startBlockCall(cw);
    11
    mv.aload(0);
    11
    mv.aload(0);
    12
    mv.getfield(mnamePath, "$scriptObject", ci(typeClass));
    12
    mv.getfield(mnamePath, "$scriptObject", ci(typeClass));
    13
    mv.aload(1);
    13
    mv.aload(1);
    14
    mv.aload(2);
    14
    mv.aload(2);
    15
    mv.aload(3);
    15
    mv.aload(3);
    16
    mv.invokestatic(typePathString, method, sig(RubyKernel.IRUBY_OBJECT, "L" + typePathString + ";", ThreadContext.class, RubyKernel.IRUBY_OBJECT, IRubyObject.class));
    16
    mv.invokestatic(typePathString, method, sig(RubyKernel.IRUBY_OBJECT, "L" + typePathString + ";", ThreadContext.class, RubyKernel.IRUBY_OBJECT, IRubyObject.class));
    16
    mv.invokestatic(typePathString, method, sig(RubyKernel.IRUBY_OBJECT, "L" + typePathString + ";", ThreadContext.class, RubyKernel.IRUBY_OBJECT, IRubyObject.class));
    Differences
    Expression1Expression2Difference
    java.lang.Class<>java.lang.Class<>VARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type java.lang.Class<> of variable RubyKernel.IRUBY_OBJECT does not match with type java.lang.Class<> of variable RubyKernel.IRUBY_OBJECT
    • Make classes java.lang.Class<> and java.lang.Class<> extend a common superclass
    16
    mv.invokestatic(typePathString, method, sig(RubyKernel.IRUBY_OBJECT, "L" + typePathString + ";", ThreadContext.class, RubyKernel.IRUBY_OBJECT, IRubyObject.class));
    17
    mv.areturn();
    17
    mv.areturn();
    18
    mv.visitMaxs(2, 3);
    18
    mv.visitMaxs(2, 3);
    19
    c = endCall(cw, mv, mname);
    19
    c = endCall(cw, mv, mname);
    20
    CompiledBlockCallback ic = (CompiledBlockCallback)c.getConstructor(Object.class).newInstance(scriptObject);
    20
    CompiledBlockCallback ic = (CompiledBlockCallback)c.getConstructor(Object.class).newInstance(scriptObject);
    21
    return ic;
    21
    return ic;
    Precondition Violations (1)
    Row Violation
    1Type java.lang.Class<> of variable RubyKernel.IRUBY_OBJECT does not match with type java.lang.Class<> of variable RubyKernel.IRUBY_OBJECT