geronimo-stax-api_1.2_spec/src/main/java/javax/xml/stream/FactoryLocator.java [60:108]:
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	static Object locate(String factoryId, String altClassName,
			ClassLoader classLoader) throws FactoryConfigurationError {
        // NOTE:  The stax spec uses the following lookup order, which is the reverse from what is specified
        // most of the APIs:
        // 1. Use the javax.xml.stream.XMLInputFactory system property.
        // 2. Use the properties file lib/xml.stream.properties in the JRE directory. This configuration
        // file is in standard java.util.Properties format and contains the fully qualified name of the
        // implementation class with the key being the system property defined in step 1.
        // 3. Use the Services API (as detailed in the JAR specification), if available, to determine the
        // classname. The Services API looks for a classname in the file META-INF/services/
        // javax.xml.stream.XMLInputFactory in jars available to the runtime.
        // 4. Platform default XMLInputFactory instance.


        // Use the system property first
        try {
            String systemProp = System.getProperty(factoryId);
            if (systemProp != null) {
                return newInstance(systemProp, classLoader);
            }
        } catch (SecurityException se) {
        }

        try {
            // NOTE:  The StAX spec gives this property file name as xml.stream.properties, but the javadoc and the maintenance release
            // state this is stax.properties.
            String factoryClassName =  ProviderLocator.lookupByJREPropertyFile("lib" + File.separator + "stax.properties", factoryId);
            if (factoryClassName != null) {
                return newInstance(factoryClassName, classLoader);
            }
        } catch (Exception ex) {
        }

        try {
            // check the META-INF/services definitions, and return it if
            // we find something.
            Object service = ProviderLocator.getService(factoryId, FactoryLocator.class, classLoader);
            if (service != null) {
                return service;
            }
        } catch (Exception ex) {
        }

		if (altClassName == null) {
			throw new FactoryConfigurationError("Unable to locate factory for "
					+ factoryId + ".", null);
		}
		return newInstance(altClassName, classLoader);
	}
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geronimo-stax-api_1.0_spec/src/main/java/javax/xml/stream/FactoryLocator.java [60:108]:
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	static Object locate(String factoryId, String altClassName,
			ClassLoader classLoader) throws FactoryConfigurationError {
        // NOTE:  The stax spec uses the following lookup order, which is the reverse from what is specified
        // most of the APIs:
        // 1. Use the javax.xml.stream.XMLInputFactory system property.
        // 2. Use the properties file lib/xml.stream.properties in the JRE directory. This configuration
        // file is in standard java.util.Properties format and contains the fully qualified name of the
        // implementation class with the key being the system property defined in step 1.
        // 3. Use the Services API (as detailed in the JAR specification), if available, to determine the
        // classname. The Services API looks for a classname in the file META-INF/services/
        // javax.xml.stream.XMLInputFactory in jars available to the runtime.
        // 4. Platform default XMLInputFactory instance.


        // Use the system property first
        try {
            String systemProp = System.getProperty(factoryId);
            if (systemProp != null) {
                return newInstance(systemProp, classLoader);
            }
        } catch (SecurityException se) {
        }

        try {
            // NOTE:  The StAX spec gives this property file name as xml.stream.properties, but the javadoc and the maintenance release
            // state this is stax.properties.
            String factoryClassName =  ProviderLocator.lookupByJREPropertyFile("lib" + File.separator + "stax.properties", factoryId);
            if (factoryClassName != null) {
                return newInstance(factoryClassName, classLoader);
            }
        } catch (Exception ex) {
        }

        try {
            // check the META-INF/services definitions, and return it if
            // we find something.
            Object service = ProviderLocator.getService(factoryId, FactoryLocator.class, classLoader);
            if (service != null) {
                return service;
            }
        } catch (Exception ex) {
        }

		if (altClassName == null) {
			throw new FactoryConfigurationError("Unable to locate factory for "
					+ factoryId + ".", null);
		}
		return newInstance(altClassName, classLoader);
	}
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