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  1. Wink
  2. WINK-187

org.apache.wink.common.internal.utils.FileLoader is not able to open a stream to existing File.

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Details

    • Bug
    • Status: Closed
    • Minor
    • Resolution: Fixed
    • 1.0
    • 1.0
    • Common
    • None

    • IBM Lotus Expeditor's Web Container - LWI. It is loaded in Equinox OSGi framework.

    • Patch Available

    Description

      It seems like the org.apache.wink.common.internal.utils.FileLoader is trying to locate the META-INF/wink-default.properties file using an OSGi class loader.

      This is the exception that is being produced:

      31 [HttpServer : 0] ERROR org.apache.wink.common.internal.utils.FileLoader - No bundle ID found: bundleresource:////300/META-INF/wink-default.properties
      java.io.IOException: No bundle ID found: bundleresource:////300/META-INF/wink-default.properties
      at org.eclipse.osgi.framework.internal.core.BundleResourceHandler.openConnection(BundleResourceHandler.java:137)
      at java.net.URL.openConnection(URL.java:945)
      at java.net.URL.openStream(URL.java:1009)
      at org.apache.wink.common.internal.utils.FileLoader.loadFileAsStream(FileLoader.java:97)
      at org.apache.wink.server.internal.utils.ServletFileLoader.loadFileAsStream(ServletFileLoader.java:50)
      at org.apache.wink.server.internal.servlet.RestServlet.loadProperties(RestServlet.java:166)
      at org.apache.wink.server.internal.servlet.RestServlet.getProperties(RestServlet.java:125)
      at org.apache.wink.server.internal.servlet.RestServlet.getDeploymentConfiguration(RestServlet.java:119)
      at org.apache.wink.server.internal.servlet.RestServlet.createRequestProcessor(RestServlet.java:108)
      at org.apache.wink.server.internal.servlet.RestServlet.init(RestServlet.java:85)
      at com.ibm.di.tp.server.servlet.EntryPointServlet.init(EntryPointServlet.java:110)
      at javax.servlet.GenericServlet.init(GenericServlet.java:211)
      at com.ibm.di.tp.server.servlet.EntryPointServlet.init(EntryPointServlet.java:99)
      at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:185)
      at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:341)
      at com.ibm.pvc.internal.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:86)
      at com.ibm.pvc.internal.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:102)
      at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3124)
      at com.ibm.pvc.internal.webcontainer.webapp.BundleWebApp.handleRequest(BundleWebApp.java:451)
      at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:235)
      at com.ibm.pvc.internal.webcontainer.VirtualHost.handleRequest(VirtualHost.java:96)
      at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:811)
      at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:41)
      at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:464)
      at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:355)
      at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1498)

      46 [HttpServer : 0] ERROR org.apache.wink.server.internal.servlet.RestServlet - META-INF/wink-default.properties
      java.io.FileNotFoundException: META-INF/wink-default.properties
      at org.apache.wink.common.internal.utils.FileLoader.loadFileAsStream(FileLoader.java:100)
      at org.apache.wink.server.internal.utils.ServletFileLoader.loadFileAsStream(ServletFileLoader.java:50)
      at org.apache.wink.server.internal.servlet.RestServlet.loadProperties(RestServlet.java:166)
      at org.apache.wink.server.internal.servlet.RestServlet.getProperties(RestServlet.java:125)
      at org.apache.wink.server.internal.servlet.RestServlet.getDeploymentConfiguration(RestServlet.java:119)
      at org.apache.wink.server.internal.servlet.RestServlet.createRequestProcessor(RestServlet.java:108)
      at org.apache.wink.server.internal.servlet.RestServlet.init(RestServlet.java:85)
      at com.ibm.di.tp.server.servlet.EntryPointServlet.init(EntryPointServlet.java:110)
      at javax.servlet.GenericServlet.init(GenericServlet.java:211)
      at com.ibm.di.tp.server.servlet.EntryPointServlet.init(EntryPointServlet.java:99)
      at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:185)
      at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:341)
      at com.ibm.pvc.internal.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:86)
      at com.ibm.pvc.internal.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:102)
      at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3124)
      at com.ibm.pvc.internal.webcontainer.webapp.BundleWebApp.handleRequest(BundleWebApp.java:451)
      at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:235)
      at com.ibm.pvc.internal.webcontainer.VirtualHost.handleRequest(VirtualHost.java:96)
      at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:811)
      at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:41)
      at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:464)
      at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:355)
      at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1498)

      Exception occured in com.ibm.ws.webcontainer.servlet.ServletInstance.service
      javax.servlet.UnavailableException: META-INF/wink-default.properties
      at org.apache.wink.server.internal.servlet.RestServlet.init(RestServlet.java:95)
      at com.ibm.di.tp.server.servlet.EntryPointServlet.init(EntryPointServlet.java:110)
      at javax.servlet.GenericServlet.init(GenericServlet.java:211)
      at com.ibm.di.tp.server.servlet.EntryPointServlet.init(EntryPointServlet.java:99)
      at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:185)
      at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:341)
      at com.ibm.pvc.internal.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:86)
      at com.ibm.pvc.internal.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:102)
      at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3124)
      at com.ibm.pvc.internal.webcontainer.webapp.BundleWebApp.handleRequest(BundleWebApp.java:451)
      at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:235)
      at com.ibm.pvc.internal.webcontainer.VirtualHost.handleRequest(VirtualHost.java:96)
      at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:811)
      at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:41)
      at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:464)
      at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:355)
      at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1498)

      Exception occured in com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest()
      javax.servlet.UnavailableException: META-INF/wink-default.properties
      at org.apache.wink.server.internal.servlet.RestServlet.init(RestServlet.java:95)
      at com.ibm.di.tp.server.servlet.EntryPointServlet.init(EntryPointServlet.java:110)
      at javax.servlet.GenericServlet.init(GenericServlet.java:211)
      at com.ibm.di.tp.server.servlet.EntryPointServlet.init(EntryPointServlet.java:99)
      at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:185)
      at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:341)
      at com.ibm.pvc.internal.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:86)
      at com.ibm.pvc.internal.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:102)
      at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3124)
      at com.ibm.pvc.internal.webcontainer.webapp.BundleWebApp.handleRequest(BundleWebApp.java:451)
      at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:235)
      at com.ibm.pvc.internal.webcontainer.VirtualHost.handleRequest(VirtualHost.java:96)
      at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:811)
      at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:41)
      at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:464)
      at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:355)
      at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1498)

      Here is a possible fix you might want to consider for the org.apache.wink.common.internal.utils.FileLoader class:

      /**
 * <p>
 * loads file
 * <p>
 * first searches for file in file system
 * <p>
 * if not found, searchs for file using classloaders
 * 
 * @param fileName
 * @return
 * @throws FileNotFoundException
 * @throws URISyntaxException
 */
public static InputStream loadFileAsStream(String fileName) throws FileNotFoundException {

	if (fileName == null || fileName.trim().equals("")) {
		throw new NullPointerException("fileName");
	}

	logger.debug("Searching for {} in file system.", fileName);

	File file = new File(fileName);
	if (file.isFile()) {
		// since file is a normal file, return it
		logger.debug("File {} found in file system.", fileName);
		return new FileInputStream(file);
	}

	// before using URLs try to open it as stream provided by the
	// classloaders first.
	InputStream result = openResourceUsingClassLoaders(fileName);

	if (result == null) {
		// file is not a normal file, try to find it using classloaders
		URL url = loadFileUsingClassLoaders(fileName);
		try {
			// decode any escaped sequences such as <space> which is %20 in
			// URL
			URI uri = url.toURI();
			String path = uri.getSchemeSpecificPart();
			url = new URL(url.getProtocol(), null, path);
		} catch (IOException e) {
			logger.error(e.getMessage(), e);
			throw new FileNotFoundException(fileName);
		} catch (URISyntaxException e) {
			// do nothing, but return the real (!) url
		}

		try {
			result = url.openStream();
		} catch (IOException e) {
			logger.error(e.getMessage(), e);
			throw new FileNotFoundException(fileName);
		}
	}

	return result;
}

/**
 * open the specified resource using class loaders
 * 
 * @param filename
 *            the name of the resource
 * @return the resource as {@link InputStream} if found
 * @throws FileNotFoundException
 *             if the resource was not found
 */
private static InputStream openResourceUsingClassLoaders(String filename) throws FileNotFoundException {
	logger.debug("Searching for {} using thread context classloader.", filename);
	ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
	InputStream is = openResourceUsingClassLoader(classLoader, filename);

	if (is == null) {
		logger.debug("Searching for {} using current classloader.", filename);

		classLoader = FileLoader.class.getClassLoader();
		is = openResourceUsingClassLoader(classLoader, filename);

		if (is == null) {
			logger.debug("Searching for {} using system classloader.", filename);
			is = ClassLoader.getSystemResourceAsStream(filename);
			if (is == null) {
				// well, the last attempt has failed! throw
				// FileNotFoundException
				logger.error("Failed to open resource using classloaders");
				throw new FileNotFoundException(filename);
			}
		}
	}

	return is;
}

private static InputStream openResourceUsingClassLoader(ClassLoader classLoader, String filename) {
	InputStream is = null;
	if (classLoader != null) {
		is = classLoader.getResourceAsStream(filename);
	}
	return is;
}

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            Dates

              Created:
              Updated:
              Resolved: