Program: 15969
Project: 15969
Buggy source:
public Object invoke(Object self,Method method,Method proceed,Object[] args) throws Exception {
  try {
    final String mname=method.getName();
    if (mname.equals("String_Node_Str")) {
      int a=(_origin != null) ? (Integer)method.invoke(_origin,args) : 0;
      return 37 * 31 + a;
    }
    if (method.getDeclaringClass().isAssignableFrom(FormProxyObject.class)) {
      if ("String_Node_Str".equals(mname)) {
        if (_dirtyFieldNames != null && _origin != null) {
          for (          Map.Entry<String,Object> me : _cache.entrySet()) {
            final Object value=me.getValue();
            if (value instanceof FormProxyObject) {
              ((FormProxyObject)value).submitToOrigin((BindContext)args[0]);
            }
 else             if (_dirtyFieldNames.contains(me.getKey())) {
              final String setter=toSetter(me.getKey());
              try {
                final Method m=Classes.getMethodByObject(_origin.getClass(),setter,new Object[]{value});
                m.invoke(_origin,Classes.coerce(m.getParameterTypes()[0],value));
                BindELContext.addNotifys(m,_origin,me.getKey(),value,(BindContext)args[0]);
              }
 catch (              NoSuchMethodException e) {
                throw UiException.Aide.wrap(e);
              }
            }
          }
          _dirtyFieldNames.clear();
        }
      }
 else       if ("String_Node_Str".equals(mname)) {
        return _origin;
      }
 else       if ("String_Node_Str".equals(mname)) {
        if (_dirtyFieldNames != null)         _dirtyFieldNames.clear();
        if (_cache != null)         _cache.clear();
      }
 else       if ("String_Node_Str".equals(mname)) {
        boolean dirty=false;
        if (_dirtyFieldNames != null && _cache != null) {
          for (          Map.Entry<String,Object> me : _cache.entrySet()) {
            final Object value=me.getValue();
            if (value instanceof FormProxyObject) {
              if (((FormProxyObject)value).isFormDirty()) {
                dirty=true;
                break;
              }
            }
 else             if (_dirtyFieldNames.contains(me.getKey())) {
              dirty=true;
              break;
            }
          }
        }
        return dirty;
      }
 else       if ("String_Node_Str".equals(mname)) {
        return null;
      }
 else {
        throw new IllegalAccessError("String_Node_Str" + mname + "String_Node_Str");
      }
    }
 else {
      if (mname.startsWith("String_Node_Str")) {
        if (_origin == null)         return null;
        final String attr=toAttrName(method);
        if (_cache != null) {
          if (_cache.containsKey(attr)) {
            return _cache.get(attr);
          }
        }
        Object value=method.invoke(_origin,args);
        if (value != null) {
          value=ProxyHelper.createProxyIfAny(value,method.getAnnotations());
          addCache(attr,value);
          if (value instanceof FormProxyObject) {
            addDirtyField(attr);
          }
        }
        return value;
      }
 else       if (mname.startsWith("String_Node_Str")) {
        if (_origin == null)         return false;
        final String attr=toAttrName(method,2);
        if (_cache != null) {
          if (_cache.containsKey(attr)) {
            return _cache.get(attr);
          }
        }
        return method.invoke(_origin,args);
      }
 else {
        final String attrName=toAttrName(method);
        addCache(attrName,args[0]);
        addDirtyField(attrName);
      }
    }
  }
 catch (  Exception e) {
    throw UiException.Aide.wrap(e);
  }
  return null;
}

Fixed version (ground truth):
public Object invoke(Object self,Method method,Method proceed,Object[] args) throws Exception {
  try {
    final String mname=method.getName();
    if (mname.equals("String_Node_Str")) {
      int a=(_origin != null) ? (Integer)method.invoke(_origin,args) : 0;
      return 37 * 31 + a;
    }
    if (method.getDeclaringClass().isAssignableFrom(FormProxyObject.class)) {
      if ("String_Node_Str".equals(mname)) {
        if (_dirtyFieldNames != null && _origin != null) {
          for (          Map.Entry<String,Object> me : _cache.entrySet()) {
            final Object value=me.getValue();
            if (value instanceof FormProxyObject) {
              ((FormProxyObject)value).submitToOrigin((BindContext)args[0]);
            }
 else             if (_dirtyFieldNames.contains(me.getKey())) {
              final String setter=toSetter(me.getKey());
              try {
                final Method m=Classes.getMethodByObject(_origin.getClass(),setter,new Object[]{value});
                m.invoke(_origin,Classes.coerce(m.getParameterTypes()[0],value));
                BindELContext.addNotifys(m,_origin,me.getKey(),value,(BindContext)args[0]);
              }
 catch (              NoSuchMethodException e) {
                throw UiException.Aide.wrap(e);
              }
            }
          }
          _dirtyFieldNames.clear();
        }
      }
 else       if ("String_Node_Str".equals(mname)) {
        return _origin;
      }
 else       if ("String_Node_Str".equals(mname)) {
        if (_dirtyFieldNames != null)         _dirtyFieldNames.clear();
        if (_cache != null)         _cache.clear();
        cloneOneIfAny();
      }
 else       if ("String_Node_Str".equals(mname)) {
        boolean dirty=false;
        if (_dirtyFieldNames != null && _cache != null) {
          for (          Map.Entry<String,Object> me : _cache.entrySet()) {
            final Object value=me.getValue();
            if (value instanceof FormProxyObject) {
              if (((FormProxyObject)value).isFormDirty()) {
                dirty=true;
                break;
              }
            }
 else             if (_dirtyFieldNames.contains(me.getKey())) {
              dirty=true;
              break;
            }
          }
        }
        return dirty;
      }
 else       if ("String_Node_Str".equals(mname)) {
        return null;
      }
 else {
        throw new IllegalAccessError("String_Node_Str" + mname + "String_Node_Str");
      }
    }
 else {
      if (_clone != null) {
        final String attr=mname.startsWith("String_Node_Str") ? toAttrName(method,2) : toAttrName(method);
        Object value=method.invoke(_clone,args);
        if (mname.startsWith("String_Node_Str")) {
          if (value != null) {
            value=ProxyHelper.createProxyIfAny(value,method.getAnnotations());
            addCache(attr,value);
            if (value instanceof FormProxyObject) {
              addDirtyField(attr);
            }
          }
        }
 else         if (mname.startsWith("String_Node_Str")) {
          addCache(attr,args[0]);
          addDirtyField(attr);
        }
        return value;
      }
      if (mname.startsWith("String_Node_Str")) {
        if (_origin == null)         return null;
        final String attr=toAttrName(method);
        if (_cache != null) {
          if (_cache.containsKey(attr)) {
            return _cache.get(attr);
          }
        }
        Object value=method.invoke(_origin,args);
        if (value != null) {
          value=ProxyHelper.createProxyIfAny(value,method.getAnnotations());
          addCache(attr,value);
          if (value instanceof FormProxyObject) {
            addDirtyField(attr);
          }
        }
        return value;
      }
 else       if (mname.startsWith("String_Node_Str")) {
        if (_origin == null)         return false;
        final String attr=toAttrName(method,2);
        if (_cache != null) {
          if (_cache.containsKey(attr)) {
            return _cache.get(attr);
          }
        }
        return method.invoke(_origin,args);
      }
 else {
        final String attrName=toAttrName(method);
        addCache(attrName,args[0]);
        addDirtyField(attrName);
      }
    }
  }
 catch (  Exception e) {
    throw UiException.Aide.wrap(e);
  }
  return null;
}