Hi! I am using xalan2.7.1 and Java1.7I wrote xsl to transform the inputxml to output xml.In my application, when I do the Transformation for eachtime the input xml is increasing. Becoz everytime results are adding to my input xml.For ex ..first time its 13MB.second time its 19MB.. when I reached to 27MB , I am getting the following error. org.apache.xml.dtm.DTMException: No more DTM IDs are available I tried with INCREMENTAL and NOOPTIMIMIZE , but no use. Any one has any idea reagarding the same. Please let me know. ThanksSwapna