java.lang.OutOfMemory error in jboss-portal-2.4.0.GA

[samshan03]

Hi,
We are using jboss-portal-2.4.0.GA. Along with each portlet war we are packing tomahawk-1.1.3.jar which we use it for validating user input and for other purpose.
Hot deploying the war for 6 to 7 times causes OutOfMemory error in jboss-portal.
While deploying the war tomahawk gives the following message

09:11:52,605 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.Command rendererType = org.apache.myfaces.Button renderer class = org.apac
he.myfaces.renderkit.html.ext.HtmlButtonRenderer
09:11:52,605 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.Command rendererType = org.apache.myfaces.Link renderer class = org.apache
.myfaces.renderkit.html.ext.HtmlLinkRenderer
09:11:52,605 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.Data rendererType = org.apache.myfaces.Table renderer class = org.apache.m
yfaces.renderkit.html.ext.HtmlTableRenderer
09:11:52,620 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.Panel rendererType = org.apache.myfaces.Grid renderer class = org.apache.m
yfaces.renderkit.html.ext.HtmlGridRenderer
09:11:52,620 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.Panel rendererType = org.apache.myfaces.Group renderer class = org.apache.
myfaces.renderkit.html.ext.HtmlGroupRenderer
09:11:52,620 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.Input rendererType = org.apache.myfaces.Secret renderer class = org.apache
.myfaces.renderkit.html.ext.HtmlSecretRenderer
09:11:52,636 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.Graphic rendererType = org.apache.myfaces.Image renderer class = org.apach
e.myfaces.renderkit.html.ext.HtmlImageRenderer
09:11:52,636 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.Input rendererType = org.apache.myfaces.Text renderer class = org.apache.m
yfaces.renderkit.html.ext.HtmlTextRenderer
09:11:52,636 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.Input rendererType = org.apache.myfaces.TextHelp renderer class = org.apac
he.myfaces.custom.inputTextHelp.HtmlTextHelpRenderer
09:11:52,651 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.Input rendererType = org.apache.myfaces.Textarea renderer class = org.apac
he.myfaces.renderkit.html.ext.HtmlTextareaRenderer
09:11:52,651 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.Message rendererType = org.apache.myfaces.Message renderer class = org.apa
che.myfaces.renderkit.html.ext.HtmlMessageRenderer
09:11:52,651 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.Messages rendererType = org.apache.myfaces.Messages renderer class = org.a
pache.myfaces.renderkit.html.ext.HtmlMessagesRenderer
09:11:52,667 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.Output rendererType = org.apache.myfaces.Text renderer class = org.apache.
myfaces.renderkit.html.ext.HtmlTextRenderer
09:11:52,667 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.SelectBoolean rendererType = org.apache.myfaces.Checkbox renderer class =
org.apache.myfaces.renderkit.html.ext.HtmlCheckboxRenderer
09:11:52,667 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.SelectMany rendererType = org.apache.myfaces.Checkbox renderer class = org
.apache.myfaces.renderkit.html.ext.HtmlCheckboxRenderer
09:11:52,667 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.SelectOne rendererType = org.apache.myfaces.Menu renderer class = org.apac
he.myfaces.renderkit.html.ext.HtmlMenuRenderer
09:11:52,683 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.SelectMany rendererType = org.apache.myfaces.Menu renderer class = org.apa
che.myfaces.renderkit.html.ext.HtmlMenuRenderer
09:11:52,683 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.SelectOne rendererType = org.apache.myfaces.Listbox renderer class = org.a
pache.myfaces.renderkit.html.ext.HtmlListboxRenderer
09:11:52,683 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.SelectMany rendererType = org.apache.myfaces.Listbox renderer class = org.
apache.myfaces.renderkit.html.ext.HtmlListboxRenderer
09:11:52,698 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.SelectOne rendererType = org.apache.myfaces.Radio renderer class = org.apa
che.myfaces.renderkit.html.ext.HtmlRadioRenderer
09:11:52,698 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.Data rendererType = org.apache.myfaces.AliasBean renderer class = org.apac
he.myfaces.custom.aliasbean.AliasBeanRenderer
09:11:52,698 INFO [HtmlRenderKitImpl] Overwriting renderer with family = javax.faces.Data rendererType = org.apache.myfaces.AliasBeansScope renderer class = or
g.apache.myfaces.custom.aliasbean.AliasBeansScopeRenderer

Whether there is any workround to solve the problem like placing the jar in common place and refering to it.
Please help us.

Thanks.