This directory contains sample XSL transformation templates that demonstrate features of org.objectweb.asm.xml package. copy.xsl Copying source document into target without changes. strip.xsl Strips all attribute values from the target XML. Result document can't be used to generate bytecode. annotate.xsl Adds comments for labels and variable instructions to the target XML document. linenumbers.xsl Adds code to dump source line numbers for the executing code to System.err profile.xsl Adds code to dump execution time for each method to System.err You can use the following command to transform java -jar asm-xml-.jar [-in ] [-out ] [-xslt ] where and is one of code, xml or singlexml when -in or -out is omitted sysin and sysout would be used