Examples of java.lang.Class$MethodKey

java.lang.Class
A Class represents a Java type. There will never be multiple Class objects with identical names and ClassLoaders. Primitive types, array types, and void also have a Class object.
Arrays with identical type and number of dimensions share the same class. The array class ClassLoader is the same as the ClassLoader of the element type of the array (which can be null to indicate the bootstrap classloader). The name of an array class is [<signature format>;.
For example, String[]'s class is [Ljava.lang.String;. boolean, byte, short, char, int, long, float and double have the "type name" of Z,B,S,C,I,J,F,D for the purposes of array classes. If it's a multidimensioned array, the same principle applies: int[][][] == [[[I.
There is no public constructor - Class objects are obtained only through the virtual machine, as defined in ClassLoaders. @serialData Class objects serialize specially:TC_CLASS ClassDescriptor. For more serialization information, see {@link ObjectStreamClass}. @author John Keiser @author Eric Blake (ebb9@email.byu.edu) @author Tom Tromey (tromey@redhat.com) @author Andrew John Hughes (gnu_andrew@member.fsf.org) @since 1.0 @see ClassLoader

    //  return true;                            //BEFORE - BUGFIX - different class loaders (Tomcat)
    //else                                  //BEFORE - BUGFIX - different class loaders (Tomcat)
    //  return false;                            //BEFORE - BUGFIX - different class loaders (Tomcat)


    else {                                  //PLUS - BUGFIX - different class loaders (Tomcat)
      Class actualFormalParameterType = formalParameterType;        //PLUS - BUGFIX
      try {                                //PLUS - BUGFIX
        actualFormalParameterType = actualParameterType.getClassLoader().loadClass(formalParameterType.getName());  //PLUS - BUGFIX
        if (actualFormalParameterType == null) actualFormalParameterType = formalParameterType;            //PLUS - BUGFIX
      } catch(Exception e) { }                                            //PLUS - BUGFIX
      boolean result = (actualFormalParameterType.isAssignableFrom(actualParameterType));                //PLUS - BUGFIX
      //System.err.println("SignaturePattern - isAssignable - Class  => " + formalParameterType + " is assignable from " + actualFormalParameterType + ":" + result);
      return result;                                                  //PLUS - BUGFIX
    }


  }

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  private void initAdviceMethod(Class methodClass,String adviceName,Class hierarchyTop) {
    int      ambigousCnt = 0;
    Method   mObj = null;
    Class    crtClass = methodClass;


    // look up a method with the name 'adviceName'; if such a method is found,
    while (crtClass != null &&
        !crtClass.equals(hierarchyTop) &&          // (e.g., crtClass != MethodCut)
        hierarchyTop.isAssignableFrom(crtClass) && // (e.g., crtClass subclass of MethodCut)
        mObj == null) {


      Method[] methods = crtClass.getDeclaredMethods();
      ambigousCnt = 0;


      // we have to select some method
      // try to match a method with such a name


      for (int i=0; i < methods.length; i++)
        if ( methods[i].getName().equals(adviceName)) {
          mObj = methods[i];
          ambigousCnt++;
        }


      crtClass=crtClass.getSuperclass();
    }


    if (mObj == null)
      throw new MissingInformationException("No advice action specified");
    if (ambigousCnt > 1)

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    */
   public boolean isInstanceOf(Object object, String instanceName)
   {
   try
     {
     Class type = getClass().forName(instanceName);
     return type.isInstance(object);
     }
    catch( ClassNotFoundException ex )
     {
     return false;
     }

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  public Object createInstance( String conceptName )
     throws InstantiationException
  {
   try
     {
     Class type = getClass().forName(conceptName);
     Object res = type.newInstance();
     ownedObjects.add(res);
     return res;
     }
    catch( Exception ex )
     {

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                try {
                    URL[] urls = new URL[1];
                    urls[0] = new URL(factoryJar);
                    ClassLoader loader = new URLClassLoader(urls,
                        BagFactory.class.getClassLoader());
                    Class c = Class.forName(factoryName, true, loader);
                    Object o = c.newInstance();
                    if (!(o instanceof BagFactory)) {
                        throw new RuntimeException("Provided factory " +
                            factoryName + " does not extend BagFactory!");
                    }
                    gSelf = (BagFactory)o;

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                try {
                    URL[] urls = new URL[1];
                    urls[0] = new URL(factoryJar);
                    ClassLoader loader = new URLClassLoader(urls,
                        TupleFactory.class.getClassLoader());
                    Class c = Class.forName(factoryName, true, loader);
                    Object o = c.newInstance();
                    if (!(o instanceof TupleFactory)) {
                        throw new RuntimeException("Provided factory " +
                            factoryName + " does not extend TupleFactory!");
                    }
                    gSelf = (TupleFactory)o;

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            {
                for( int i = 0; i < field.length; i++)
                {
                    if( ! Modifier.isStatic( field[i].getModifiers()))
                    {
                        Class fieldClass = field[i].getType();
                        if( fieldClass.isArray() || ! fieldClass.isPrimitive())
                            coeff[1]++;
                        else // Is simple primitive
                        {
                            String name = fieldClass.getName();


                            if( name.equals( "int") || name.equals( "I"))
                                coeff[0] += intSize;
                            else if( name.equals( "long") || name.equals( "J"))
                                coeff[0] += longSize;

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    protected void read(ObjectInput in) throws IOException, ClassNotFoundException {
        byte b = in.readByte();
        if (b != CLASS) throw new IOException("Expected 'CLASS' byte " + CLASS + ", got: " + b);


        Class clazz = (Class) in.readObject();


        Object object;
        try {
            object = allocateInstance.invoke(unsafe, clazz);
        } catch (Exception e) {
            throw (IOException) new IOException("Cannot construct " + clazz.getName()).initCause(e);
        }


        while (b != DONE) {
            b = in.readByte();
            switch (b) {
                case FIELD: {
                    String fieldName = in.readUTF();
                    Object value = in.readObject();
                    Field field = null;
                    try {
                        field = clazz.getDeclaredField(fieldName);
                    } catch (NoSuchFieldException e) {
                        throw (IOException) new IOException("Cannot find field " + fieldName).initCause(e);
                    }
                    setValue(field, object, value);
                }

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        this.object = object;
    }


    protected void write(ObjectOutput out) throws IOException {
        List<Class> classes = new ArrayList<Class>();
        Class c = object.getClass();
        while (c != null && !c.equals(Object.class)) {
            classes.add(c);
            c = c.getSuperclass();
        }


        for (Class clazz : classes) {
            out.writeByte(CLASS);
            out.writeObject(clazz);

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            offset = (Long) objectFieldOffset.invoke(unsafe, field);
        } catch (Exception e) {
            throw new IllegalStateException("Failed getting offset for: field=" + field.getName() + "  class=" + field.getDeclaringClass().getName(), e);
        }


        Class type = field.getType();
        try {
            if (type.isPrimitive()) {
                if (type.equals(Integer.TYPE)) {
                    putInt.invoke(unsafe, object, offset, ((Integer) value).intValue());
                } else if (type.equals(Long.TYPE)) {
                    putLong.invoke(unsafe, object, offset, ((Long) value).longValue());
                } else if (type.equals(Short.TYPE)) {
                    putShort.invoke(unsafe, object, offset, ((Short) value).shortValue());
                } else if (type.equals(Character.TYPE)) {
                    putChar.invoke(unsafe, object, offset, ((Character) value).charValue());
                } else if (type.equals(Byte.TYPE)) {
                    putByte.invoke(unsafe, object, offset, ((Byte) value).byteValue());
                } else if (type.equals(Float.TYPE)) {
                    putFloat.invoke(unsafe, object, offset, ((Float) value).floatValue());
                } else if (type.equals(Double.TYPE)) {
                    putDouble.invoke(unsafe, object, offset, ((Double) value).doubleValue());
                } else if (type.equals(Boolean.TYPE)) {
                    putBoolean.invoke(unsafe, object, offset, ((Boolean) value).booleanValue());
                } else {
                    throw new IllegalStateException("Unknown primitive type: " + type.getName());
                }
            } else {
                putObject.invoke(unsafe, object, offset, value);
            }
        } catch (Exception e) {

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