public String[] getText() {
        if (!textSet) {
            throw new IllegalStateException(PropertyUtil.getString("PNGEncodeParam20"));
        }
        return text;
    }
Returns the text strings to be stored in uncompressed form with this
image as an array of <code>String</code>s.

<p> If the text strings have not previously been set, or have been
unset, an <code>IllegalStateException</code> will be thrown.

@throws IllegalStateException if the text strings are not set.
plugins/svg-plugin/batik-codec-fix/src/main/java/org/apache/batik/ext/awt/image/codec/png/PNGEncodeParam.java