GWT, UiBinder : "Attribute height is not allowed here" inside <table> and <tr> tags

GWT, UiBinder : "Attribute height is not allowed here" inside all <table> and <tr> tags.

Code inspection shows these errors in *ui.xml file.

TestHtmlTable.ui.xml:

<ui:UiBinder xmlns:ui='urn:ui:com.google.gwt.uibinder'
xmlns:g='urn:import:com.google.gwt.user.client.ui'>
<g:HTMLPanel width="100%" height="100%">
<table width="100%" height="200px">
<tr height="200px">
<td height="50%"></td>
</tr>
</table>
</g:HTMLPanel>
</ui:UiBinder>

TestHtmlTable.java:

package com.mySampleApplication.client;

import com.google.gwt.core.client.GWT;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.HTMLPanel;

public class TestHtmlTable extends Composite {
    interface TestHtmlTableUiBinder
            extends UiBinder<HTMLPanel, TestHtmlTable> {
    }

    private static TestHtmlTableUiBinder ourUiBinder = GWT.create(TestHtmlTableUiBinder.class);

    public TestHtmlTable() {
        initWidget(ourUiBinder.createAndBindUi(this));
    }
}

GWT 2.8.2

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