Program: 68736
Project: 68736
Buggy source:
/** 
 * INTERNAL: Create a dynamic open content property if no property exists for (name).
 * @param name
 * @param value
 * @return Property
 * @throws UnsupportedOperationException
 * @throws IllegalArgumentException
 */
public Property defineOpenContentProperty(String name,Object value) throws UnsupportedOperationException, IllegalArgumentException {
  DataObject propertyDO=aHelperContext.getDataFactory().create(SDOConstants.SDO_PROPERTY);
  propertyDO.set("String_Node_Str",name);
  Type sdotype=null;
  boolean isMany=false;
  boolean isContainment=false;
  Class valueClass=value.getClass();
  if (value == null) {
    return null;
  }
  if (value instanceof Collection) {
    if (((Collection)value).size() > 0) {
      Object firstObject=((Collection)value).iterator().next();
      if (firstObject != null) {
        valueClass=firstObject.getClass();
        if (firstObject instanceof DataObject) {
          if (((DataObject)firstObject).getContainer() == null) {
            isContainment=true;
          }
          sdotype=((DataObject)firstObject).getType();
        }
 else {
          sdotype=((SDOTypeHelper)aHelperContext.getTypeHelper()).getTypeForSimpleJavaType(valueClass);
        }
      }
 else {
        return null;
      }
    }
 else {
      return null;
    }
    isMany=true;
  }
 else   if (value instanceof DataObject) {
    if (((DataObject)value).getContainer() == null) {
      isContainment=true;
    }
    sdotype=((DataObject)value).getType();
  }
 else {
    sdotype=((SDOTypeHelper)aHelperContext.getTypeHelper()).getTypeForSimpleJavaType(valueClass);
  }
  propertyDO.set("String_Node_Str",sdotype);
  propertyDO.set("String_Node_Str",isMany);
  propertyDO.set("String_Node_Str",isContainment);
  return aHelperContext.getTypeHelper().defineOpenContentProperty(null,propertyDO);
}

Fixed version (ground truth):
public Property defineOpenContentProperty(String name,Object value,Type sdotype) throws UnsupportedOperationException, IllegalArgumentException {
  if (sdotype == null) {
    return defineOpenContentProperty(name,value);
  }
  DataObject propertyDO=aHelperContext.getDataFactory().create(SDOConstants.SDO_PROPERTY);
  propertyDO.set("String_Node_Str",name);
  boolean isMany=false;
  boolean isContainment=false;
  Class valueClass=value.getClass();
  if (value == null) {
    return null;
  }
  if (value instanceof Collection) {
    if (((Collection)value).size() > 0) {
      Object firstObject=((Collection)value).iterator().next();
      if (firstObject != null) {
        valueClass=firstObject.getClass();
        if (firstObject instanceof DataObject) {
          if (((DataObject)firstObject).getContainer() == null) {
            isContainment=true;
          }
          sdotype=((DataObject)firstObject).getType();
        }
 else {
          sdotype=((SDOTypeHelper)aHelperContext.getTypeHelper()).getTypeForSimpleJavaType(valueClass);
        }
      }
    }
    isMany=true;
  }
 else   if (value instanceof DataObject) {
    if (((DataObject)value).getContainer() == null) {
      isContainment=true;
    }
    sdotype=((DataObject)value).getType();
  }
 else {
    sdotype=((SDOTypeHelper)aHelperContext.getTypeHelper()).getTypeForSimpleJavaType(valueClass);
  }
  propertyDO.set("String_Node_Str",sdotype);
  propertyDO.set("String_Node_Str",isMany);
  propertyDO.set("String_Node_Str",isContainment);
  return aHelperContext.getTypeHelper().defineOpenContentProperty(null,propertyDO);
}