1 The JSR173 is the XML pull API used at build time for the saxon9 XSLT processor, it has become part of OpenJDK 6.
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2 When using an older JDK, get the API from <https://stax-utils.dev.java.net/source/browse/*checkout*/stax-utils/lib/jars/jsr173_1.0_api.jar>
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3 located at the StAS Java site <https://sjsxp.dev.java.net/> and put it into external/StAX.