protected String findString(String expr) 
{
        return (String) findValue(expr, String.class);
}

 protected Object findValue(String expr) 
{
    	expr = Component.stripExpressionIfAltSyntax(getStack(), expr);
        return getStack().findValue(expr);
}

 protected Object findValue(String expr,
    Class toType) 
{
        if (Component.altSyntax(getStack()) && toType == String.class) {
        	return TextParseUtil.translateVariables('%', expr, getStack());
            //return translateVariables(expr, getStack());
        } else {
        	expr = Component.stripExpressionIfAltSyntax(getStack(), expr);
            return getStack().findValue(expr, toType);
        }
}

 protected String getBody() 
{
        if (bodyContent == null) {
            return "";
        } else {
            return bodyContent.getString().trim();
        }
}

 protected ValueStack getStack() 
{
        return TagUtils.getStack(pageContext);
}

 protected String toString(Throwable t) 
{
        FastByteArrayOutputStream bout = new FastByteArrayOutputStream();
        PrintWriter wrt = new PrintWriter(bout);
        t.printStackTrace(wrt);
        wrt.close();
        return bout.toString();
}