core/src/main/java/org/apache/commons/jelly/impl/DynamicBeanTag.java [98:126]:
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            throw new JellyTagException("Could not instantiate dynabean", e);
        }

        setAttributesSet.clear();
    }

    // Tag interface
    //-------------------------------------------------------------------------
    @Override
    public void doTag(XMLOutput output) throws JellyTagException {

        // lets find any attributes that are not set and
        for ( Iterator iter = attributes.values().iterator(); iter.hasNext(); ) {
            Attribute attribute = (Attribute) iter.next();
            String name = attribute.getName();
            if ( ! setAttributesSet.contains( name ) ) {
                if ( attribute.isRequired() ) {
                    throw new MissingAttributeException(name);
                }
                // lets get the default value
                Object value = null;
                Expression expression = attribute.getDefaultValue();
                if ( expression != null ) {
                    value = expression.evaluate(context);
                }

                // only set non-null values?
                if ( value != null ) {
                    super.setAttribute(name, value);
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core/src/main/java/org/apache/commons/jelly/impl/DynamicDynaBeanTag.java [71:99]:
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            throw new JellyTagException("Could not instantiate dynabean", e);
        }

        setAttributesSet.clear();
    }

    // Tag interface
    //-------------------------------------------------------------------------
    @Override
    public void doTag(XMLOutput output) throws JellyTagException {

        // lets find any attributes that are not set and
        for ( Iterator iter = attributes.values().iterator(); iter.hasNext(); ) {
            Attribute attribute = (Attribute) iter.next();
            String name = attribute.getName();
            if ( ! setAttributesSet.contains( name ) ) {
                if ( attribute.isRequired() ) {
                    throw new MissingAttributeException(name);
                }
                // lets get the default value
                Object value = null;
                Expression expression = attribute.getDefaultValue();
                if ( expression != null ) {
                    value = expression.evaluate(context);
                }

                // only set non-null values?
                if ( value != null ) {
                    super.setAttribute(name, value);
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