Saxon

Legacy ID: #10758638 Legacy Poster: Ludovic Kuty ()

Hello, When I try to use the service provider mechanism of Java 6 to locate an implementation of [code]javax.xml.xpath.XPathFactory[/code], I get a syntax error (not in my code). Java goes inside the jar saxon9he.jar into the [code]META-INF/services/javax.xml.xpath.XPathFactory[/code] file and then it finds: - on the first line, what it is looking for: [code]net.sf.saxon.xpath.XPathFactoryImpl[/code] - on the remaining lines, unexpected lines with a syntax it does not understand. This is what I think. We have [code]http://java.sun.com/jaxp/xpath/dom: net.sf.saxon.xpath.XPathFactoryImpl[/code] and [code]http://saxon.sf.net/jaxp/xpath/om: net.sf.saxon.xpath.XPathFactoryImpl[/code]. From what I understand of the JAR File specification, those lines are not covered by the same spec. What is it then ? And how can I make it work ? Of course, I can always instantiate [code]net.sf.saxon.xpath.XPathFactoryImpl[/code] manually or tell the [code]newInstance[/code] method of [code]javax.xml.xpath.XPathFactory[/code] to use that specific class. [u][b]TEST[/b][/u] [code] mac:services ludo$ java ServicesTest CLASSPATH = /Users/ludo/Library/Java/iText-5.0.1.jar, /Users/ludo/Library/Java/iText-5.0.5.jar, /Users/ludo/Library/Java/jackson-all-1.6.0.jar, /Users/ludo/Library/Java/jackson-all-1.6.8.jar, /Users/ludo/Library/Java/jackson-all-1.7.7.jar, /Users/ludo/Library/Java/jackson-all-1.8.2.jar, /Users/ludo/Library/Java/jcip-annotations.jar, /Applications/Mathematica.app/SystemFiles/Links/JLink/JLink.jar, /Users/ludo/Library/Java/joda-time-1.6.2.jar, /Users/ludo/Library/Java/JSAP-2.1.jar, /Users/ludo/Library/Java/odfdom-java-0.8.6.jar, /Users/ludo/Library/Java/ojdbc6.jar, /Users/ludo/Library/Java/saxon9he.jar, /Users/ludo/Documents/cours/xml/tests/services/, /Users/ludo/Documents/cours/xml/tests/services/, /Users/ludo/Library/Java/saxon6-5-5/saxon-jdom.jar, /Users/ludo/Library/Java/saxon6-5-5/saxon.jar Service XPathFactory: java.util.ServiceLoader[javax.xml.xpath.XPathFactory] ServiceConfigurationError: javax.xml.xpath.XPathFactory: jar:file:/Users/ludo/Library/Java/saxon9he.jar!/META-INF/services/javax.xml.xpath.XPathFactory:2: Illegal configuration-file syntax [/code] [b][u]PROGRAM CODE[/u][/b] [code] import java.net.URL; import java.net.URLClassLoader; import java.util.Iterator; import java.util.ServiceConfigurationError; import java.util.ServiceLoader; import javax.xml.xpath.XPathFactory; import javax.xml.xpath.XPathFactoryConfigurationException; public class ServicesTest { public static String getClasspathString() { StringBuilder classpath = new StringBuilder(); ClassLoader classLoader = ClassLoader.getSystemClassLoader(); URL[] urls = ((URLClassLoader) classLoader).getURLs(); for (int i = 0; i < urls.length - 2; i++) { classpath.append(urls[i].getFile()).append(", "); } if (urls.length > 0) { classpath.append(urls[urls.length - 1].getFile()); } return classpath.toString(); } public static void availableProviders(ServiceLoader sl) { Iterator it = sl.iterator(); int index = 0; for (;;) { try { if (!it.hasNext()) { break; } index++; Object o = it.next(); System.out.printf("%03d Concrete class name: %s\n", index, o.getClass().getName()); } catch (ServiceConfigurationError e) { System.err.printf("ServiceConfigurationError: %s\n", e.getMessage()); } } } public static void main(String[] args) { System.out.printf("CLASSPATH = %s\n", getClasspathString()); System.out.println(); ServiceLoader slXPathFactory = ServiceLoader.load(XPathFactory.class); System.out.printf("Service XPathFactory: %s\n", slXPathFactory.toString()); availableProviders(slXPathFactory); } } [/code] TIA, Ludovic Kuty