Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: src/share/classes/com/sun/tools/javac/file/JavacFileManager.java
src/share/classes/com/sun/tools/javac/file/JavacFileManager.java
- changeset 372
- 7dbb79875a63
- parent 333
- 7c2d6da61646
- child 400
- 35e29f51a7c3
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| 371:71680973d8ec | 372:7dbb79875a63 |
|---|---|
| 31 import java.io.FileNotFoundException; | 31 import java.io.FileNotFoundException; |
| 32 import java.io.IOException; | 32 import java.io.IOException; |
| 33 import java.io.InputStream; | 33 import java.io.InputStream; |
| 34 import java.io.OutputStreamWriter; | 34 import java.io.OutputStreamWriter; |
| 35 import java.lang.ref.SoftReference; | 35 import java.lang.ref.SoftReference; |
| 36 import java.lang.reflect.Constructor; | |
| 36 import java.net.MalformedURLException; | 37 import java.net.MalformedURLException; |
| 37 import java.net.URI; | 38 import java.net.URI; |
| 38 import java.net.URL; | 39 import java.net.URL; |
| 39 import java.net.URLClassLoader; | 40 import java.net.URLClassLoader; |
| 40 import java.nio.ByteBuffer; | 41 import java.nio.ByteBuffer; |
| 74 import com.sun.tools.javac.util.List; | 75 import com.sun.tools.javac.util.List; |
| 75 import com.sun.tools.javac.util.ListBuffer; | 76 import com.sun.tools.javac.util.ListBuffer; |
| 76 import com.sun.tools.javac.util.Log; | 77 import com.sun.tools.javac.util.Log; |
| 77 import com.sun.tools.javac.util.Options; | 78 import com.sun.tools.javac.util.Options; |
| 78 | 79 |
| 80 import java.io.Closeable; | |
| 79 import static javax.tools.StandardLocation.*; | 81 import static javax.tools.StandardLocation.*; |
| 80 import static com.sun.tools.javac.main.OptionName.*; | 82 import static com.sun.tools.javac.main.OptionName.*; |
| 81 | 83 |
| 82 /** | 84 /** |
| 83 * This class provides access to the source, class and other files | 85 * This class provides access to the source, class and other files |
| 129 */ | 131 */ |
| 130 private File sourceOutDir = uninited; | 132 private File sourceOutDir = uninited; |
| 131 | 133 |
| 132 protected boolean mmappedIO; | 134 protected boolean mmappedIO; |
| 133 protected boolean ignoreSymbolFile; | 135 protected boolean ignoreSymbolFile; |
| 136 protected String classLoaderClass; | |
| 134 | 137 |
| 135 /** | 138 /** |
| 136 * User provided charset (through javax.tools). | 139 * User provided charset (through javax.tools). |
| 137 */ | 140 */ |
| 138 protected Charset charset; | 141 protected Charset charset; |
| 178 | 181 |
| 179 useZipFileIndex = System.getProperty("useJavaUtilZip") == null;// TODO: options.get("useJavaUtilZip") == null; | 182 useZipFileIndex = System.getProperty("useJavaUtilZip") == null;// TODO: options.get("useJavaUtilZip") == null; |
| 180 | 183 |
| 181 mmappedIO = options.get("mmappedIO") != null; | 184 mmappedIO = options.get("mmappedIO") != null; |
| 182 ignoreSymbolFile = options.get("ignore.symbol.file") != null; | 185 ignoreSymbolFile = options.get("ignore.symbol.file") != null; |
| 186 classLoaderClass = options.get("procloader"); | |
| 183 } | 187 } |
| 184 | 188 |
| 185 public JavaFileObject getFileForInput(String name) { | 189 public JavaFileObject getFileForInput(String name) { |
| 186 return getRegularFile(new File(name)); | 190 return getRegularFile(new File(name)); |
| 187 } | 191 } |
| 745 lb.append(f.toURI().toURL()); | 749 lb.append(f.toURI().toURL()); |
| 746 } catch (MalformedURLException e) { | 750 } catch (MalformedURLException e) { |
| 747 throw new AssertionError(e); | 751 throw new AssertionError(e); |
| 748 } | 752 } |
| 749 } | 753 } |
| 750 return new URLClassLoader(lb.toArray(new URL[lb.size()]), | 754 |
| 751 getClass().getClassLoader()); | 755 URL[] urls = lb.toArray(new URL[lb.size()]); |
| 756 ClassLoader thisClassLoader = getClass().getClassLoader(); | |
| 757 | |
| 758 // Bug: 6558476 | |
| 759 // Ideally, ClassLoader should be Closeable, but before JDK7 it is not. | |
| 760 // On older versions, try the following, to get a closeable classloader. | |
| 761 | |
| 762 // 1: Allow client to specify the class to use via hidden option | |
| 763 if (classLoaderClass != null) { | |
| 764 try { | |
| 765 Class<? extends ClassLoader> loader = | |
| 766 Class.forName(classLoaderClass).asSubclass(ClassLoader.class); | |
| 767 Class<?>[] constrArgTypes = { URL[].class, ClassLoader.class }; | |
| 768 Constructor<? extends ClassLoader> constr = loader.getConstructor(constrArgTypes); | |
| 769 return constr.newInstance(new Object[] { urls, thisClassLoader }); | |
| 770 } catch (Throwable t) { | |
| 771 // ignore errors loading user-provided class loader, fall through | |
| 772 } | |
| 773 } | |
| 774 | |
| 775 // 2: If URLClassLoader implements Closeable, use that. | |
| 776 if (Closeable.class.isAssignableFrom(URLClassLoader.class)) | |
| 777 return new URLClassLoader(urls, thisClassLoader); | |
| 778 | |
| 779 // 3: Try using private reflection-based CloseableURLClassLoader | |
| 780 try { | |
| 781 return new CloseableURLClassLoader(urls, thisClassLoader); | |
| 782 } catch (Throwable t) { | |
| 783 // ignore errors loading workaround class loader, fall through | |
| 784 } | |
| 785 | |
| 786 // 4: If all else fails, use plain old standard URLClassLoader | |
| 787 return new URLClassLoader(urls, thisClassLoader); | |
| 752 } | 788 } |
| 753 | 789 |
| 754 public Iterable<JavaFileObject> list(Location location, | 790 public Iterable<JavaFileObject> list(Location location, |
| 755 String packageName, | 791 String packageName, |
| 756 Set<JavaFileObject.Kind> kinds, | 792 Set<JavaFileObject.Kind> kinds, |
