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src/jdk.xml.bind/share/classes/com/sun/tools/internal/xjc/Options.java
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@@ -30,22 +30,22 @@
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.StringWriter;
-import java.lang.reflect.Array;
-import java.lang.reflect.InvocationTargetException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
-import java.util.Arrays;
import java.util.Date;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.List;
+import java.util.ServiceLoader;
import java.util.Set;
import com.sun.codemodel.internal.CodeWriter;
import com.sun.codemodel.internal.JPackage;
import com.sun.codemodel.internal.JResourceFile;
@@ -352,13 +352,11 @@
* by taking {@link #classpaths} into account. That means
* "-cp plugin.jar" has to come before you specify options to enable it.
*/
public List<Plugin> getAllPlugins() {
if(allPlugins==null) {
- allPlugins = new ArrayList<Plugin>();
- ClassLoader ucl = getUserClassLoader(SecureLoader.getClassClassLoader(getClass()));
- allPlugins.addAll(Arrays.asList(findServices(Plugin.class,ucl)));
+ allPlugins = findServices(Plugin.class);
}
return allPlugins;
}
@@ -922,122 +920,48 @@
}
/**
* If a plugin failed to load, report.
*/
- private static String pluginLoadFailure;
+ private String pluginLoadFailure;
/**
* Looks for all "META-INF/services/[className]" files and
* create one instance for each class name found inside this file.
*/
- private static <T> T[] findServices( Class<T> clazz, ClassLoader classLoader ) {
- // if true, print debug output
- final boolean debug = com.sun.tools.internal.xjc.util.Util.getSystemProperty(Options.class,"findServices")!=null;
-
- // if we are running on Mustang or Dolphin, use ServiceLoader
- // so that we can take advantage of JSR-277 module system.
- try {
- Class<?> serviceLoader = Class.forName("java.util.ServiceLoader");
- if(debug)
- System.out.println("Using java.util.ServiceLoader");
- Iterable<T> itr = (Iterable<T>)serviceLoader.getMethod("load",Class.class,ClassLoader.class).invoke(null,clazz,classLoader);
- List<T> r = new ArrayList<T>();
- for (T t : itr)
- r.add(t);
- return r.toArray((T[])Array.newInstance(clazz,r.size()));
- } catch (ClassNotFoundException e) {
- // fall through
- } catch (IllegalAccessException e) {
- Error x = new IllegalAccessError();
- x.initCause(e);
- throw x;
- } catch (InvocationTargetException e) {
- Throwable x = e.getTargetException();
- if (x instanceof RuntimeException)
- throw (RuntimeException) x;
- if (x instanceof Error)
- throw (Error) x;
- throw new Error(x);
- } catch (NoSuchMethodException e) {
- Error x = new NoSuchMethodError();
- x.initCause(e);
- throw x;
- }
-
- String serviceId = "META-INF/services/" + clazz.getName();
-
- // used to avoid creating the same instance twice
- Set<String> classNames = new HashSet<String>();
-
- if(debug) {
- System.out.println("Looking for "+serviceId+" for add-ons");
- }
-
- // try to find services in CLASSPATH
- try {
- Enumeration<URL> e = classLoader.getResources(serviceId);
- if(e==null) return (T[])Array.newInstance(clazz,0);
-
- ArrayList<T> a = new ArrayList<T>();
- while(e.hasMoreElements()) {
- URL url = e.nextElement();
- BufferedReader reader=null;
-
- if(debug) {
- System.out.println("Checking "+url+" for an add-on");
- }
-
- try {
- reader = new BufferedReader(new InputStreamReader(url.openStream()));
- String impl;
- while((impl = reader.readLine())!=null ) {
- // try to instanciate the object
- impl = impl.trim();
- if(classNames.add(impl)) {
- Class implClass = classLoader.loadClass(impl);
- if(!clazz.isAssignableFrom(implClass)) {
- pluginLoadFailure = impl+" is not a subclass of "+clazz+". Skipping";
- if(debug)
- System.out.println(pluginLoadFailure);
- continue;
- }
- if(debug) {
- System.out.println("Attempting to instanciate "+impl);
- }
- a.add(clazz.cast(implClass.newInstance()));
- }
- }
- reader.close();
- } catch( Exception ex ) {
- // let it go.
- StringWriter w = new StringWriter();
- ex.printStackTrace(new PrintWriter(w));
- pluginLoadFailure = w.toString();
- if(debug) {
- System.out.println(pluginLoadFailure);
- }
- if( reader!=null ) {
- try {
- reader.close();
- } catch( IOException ex2 ) {
- // ignore
- }
- }
- }
- }
-
- return a.toArray((T[])Array.newInstance(clazz,a.size()));
+ private <T> List<T> findServices( Class<T> clazz) {
+ final List<T> result = new ArrayList<T>();
+ final boolean debug = getDebugPropertyValue();
+ try {
+ // TCCL allows user plugins to be loaded even if xjc is in jdk
+ // We have to use our SecureLoader to obtain it because we are trying to avoid SecurityException
+ final ClassLoader tccl = SecureLoader.getContextClassLoader();
+ final ServiceLoader<T> sl = ServiceLoader.load(clazz, tccl);
+ for (T t : sl)
+ result.add(t);
} catch( Throwable e ) {
// ignore any error
StringWriter w = new StringWriter();
e.printStackTrace(new PrintWriter(w));
pluginLoadFailure = w.toString();
- if(debug) {
+ if(debug)
System.out.println(pluginLoadFailure);
}
- return (T[])Array.newInstance(clazz,0);
+ return result;
+ }
+
+ private static boolean getDebugPropertyValue() {
+ final String debugPropertyName = Options.class.getName() + ".findServices";
+ if (System.getSecurityManager() != null) {
+ return AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
+ @Override
+ public Boolean run() {
+ return Boolean.getBoolean(debugPropertyName);
+ }
+ });
+ } else {
+ return Boolean.getBoolean(debugPropertyName);
}
}
// this is a convenient place to expose the build version to xjc plugins
public static String getBuildID() {
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