HikariProxyStatement.isWrapperFor doesn't check the delegate

[shalom938]

HikariProxyStatement.isWrapperFor delegates the call to the delegate but does not check if the delegate is or implements the required class

public boolean isWrapperFor(Class var1) throws SQLException {
        try {
            return super.delegate.isWrapperFor(var1);
        } catch (SQLException var3) {
            throw ((ProxyStatement)this).checkException(var3);
        }
    }

on the other hand unwrap works correctly

public final <T> T unwrap(Class<T> iface) throws SQLException
   {
      if (iface.isInstance(delegate)) {
         return (T) delegate;
      }
      else if (delegate != null) {
          return delegate.unwrap(iface);
      }

      throw new SQLException("Wrapped statement is not an instance of " + iface);
   }

[quaff]

Because method isWrapperFor is generated by JavassistProxyFactory base on template method body.

Fixed by GH-2243.