langtools/test/tools/javac/processing/model/testgetallmembers/Main.java
changeset 10 06bc494ca11e
child 1989 a891da9d8db1
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/processing/model/testgetallmembers/Main.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,126 @@
+/*
+ * Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/**
+ * @test
+ * @bug     6374357 6308351
+ * @summary PackageElement.getEnclosedElements() throws ClassReader$BadClassFileException
+ * @author  Peter von der Ah\u00e9
+ * @run main/othervm -Xmx256m Main
+ */
+
+import java.io.File;
+import java.util.*;
+import javax.lang.model.SourceVersion;
+import javax.lang.model.element.Element;
+import javax.lang.model.element.ElementKind;
+import javax.lang.model.element.PackageElement;
+import javax.lang.model.element.TypeElement;
+import javax.lang.model.util.Elements;
+import javax.tools.*;
+import com.sun.source.util.JavacTask;
+
+import static javax.tools.StandardLocation.CLASS_PATH;
+import static javax.tools.StandardLocation.PLATFORM_CLASS_PATH;
+import static javax.tools.JavaFileObject.Kind.CLASS;
+
+
+public class Main {
+
+    public static PackageElement getPackage(TypeElement type) {
+        Element owner = type;
+        while (owner.getKind() != ElementKind.PACKAGE)
+            owner = owner.getEnclosingElement();
+        return (PackageElement)owner;
+    }
+
+    static int progress = 0;
+    static JavaCompiler tool;
+    static JavacTask javac;
+    static Elements elements;
+
+    public static void main(String[] args) throws Exception {
+
+        JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
+        StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);
+        fm.setLocation(CLASS_PATH, Collections.<File>emptyList());
+        JavacTask javac = (JavacTask)tool.getTask(null, fm, null, null, null, null);
+        Elements elements = javac.getElements();
+
+        final Set<String> packages = new LinkedHashSet<String>();
+
+        int nestedClasses = 0;
+        int classes = 0;
+
+        for (JavaFileObject file : fm.list(PLATFORM_CLASS_PATH, "", EnumSet.of(CLASS), true)) {
+            String type = fm.inferBinaryName(PLATFORM_CLASS_PATH, file);
+            if (type.endsWith("package-info"))
+                continue;
+            try {
+                TypeElement elem = elements.getTypeElement(type);
+                if (elem == null && type.indexOf('$') > 0) {
+                    nestedClasses++;
+                    type = null;
+                    continue;
+                }
+                classes++;
+                packages.add(getPackage(elem).getQualifiedName().toString());
+                elements.getTypeElement(type).getKind(); // force completion
+                type = null;
+            } finally {
+                if (type != null)
+                    System.err.println("Looking at " + type);
+            }
+        }
+        javac = null;
+        elements = null;
+
+        javac = (JavacTask)tool.getTask(null, null, null, null, null, null);
+        elements = javac.getElements();
+
+        for (String name : packages) {
+            PackageElement pe = elements.getPackageElement(name);
+            for (Element e : pe.getEnclosedElements()) {
+                e.getSimpleName().getClass();
+            }
+        }
+        /*
+         * A few sanity checks based on current values:
+         *
+         * packages: 775, classes: 12429 + 5917
+         *
+         * As the platform evolves the numbers are likely to grow
+         * monotonically but in case somebody gets a clever idea for
+         * limiting the number of packages exposed, this number might
+         * drop.  So we test low values.
+         */
+        System.out.format("packages: %s, classes: %s + %s%n",
+                          packages.size(), classes, nestedClasses);
+        if (classes < 9000)
+            throw new AssertionError("Too few classes in PLATFORM_CLASS_PATH ;-)");
+        if (packages.size() < 545)
+            throw new AssertionError("Too few packages in PLATFORM_CLASS_PATH ;-)");
+        if (nestedClasses < 3000)
+            throw new AssertionError("Too few nested classes in PLATFORM_CLASS_PATH ;-)");
+    }
+}