@Override
  public boolean isWrapperFor(Class iface) throws SQLException {
    return true;
  }
Place holder for abstract method isWrapperFor(java.lang.Class) in java.sql.Wrapper required by
jdk 1.6

@param iface - a Class defining an interface.
geode-core/src/main/java/org/apache/geode/internal/datasource/GemFireConnPooledDataSource.java