test/langtools/tools/javac/classreader/T7031108.java
changeset 47216 71c04702a3d5
parent 30730 d3ce7619db2c
child 49197 cc2673fa8c20
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/langtools/tools/javac/classreader/T7031108.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,152 @@
+/*
+ * Copyright (c) 2011, 2015, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 7031108
+ * @summary NPE in javac.jvm.ClassReader.findMethod in PackageElement.enclosedElements from AP in incr build
+ * @library /tools/javac/lib
+ * @modules java.compiler
+ *          jdk.compiler
+ * @build JavacTestingAbstractProcessor T7031108
+ * @run main T7031108
+ */
+
+import java.io.*;
+import java.net.*;
+import java.util.*;
+import javax.annotation.processing.*;
+import javax.lang.model.element.*;
+import javax.tools.*;
+import javax.tools.JavaCompiler.CompilationTask;
+
+public class T7031108 extends JavacTestingAbstractProcessor {
+    public static void main(String... args) throws Exception {
+        new T7031108().run();
+    }
+
+    /* Class containing a local class definition;
+     * compiled class file will have an EnclosedMethod attribute.
+     */
+    static final JavaSource pC =
+            new JavaSource("p/C.java",
+                  "package p;\n"
+                + "class C {\n"
+                + "    void m() {\n"
+                + "        new Runnable() {\n"
+                + "            public void run() {\n"
+                + "                new Runnable() {\n"
+                + "                    public void run() { }\n"
+                + "                };\n"
+                + "            }\n"
+                + "        };\n"
+                + "    }\n"
+                + "}");
+
+    /* Dummy source file to compile while running anno processor. */
+    static final JavaSource dummy =
+            new JavaSource("Dummy.java",
+                "class Dummy { }");
+
+    void run() throws Exception {
+        JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
+        try (StandardJavaFileManager fm = comp.getStandardFileManager(null, null, null)) {
+
+            // step 1: compile test classes
+            File cwd = new File(".");
+            fm.setLocation(StandardLocation.CLASS_OUTPUT, Arrays.asList(cwd));
+            compile(comp, fm, null, null, pC);
+
+            // step 2: verify functioning of processor
+            fm.setLocation(StandardLocation.ANNOTATION_PROCESSOR_PATH,
+                    fm.getLocation(StandardLocation.CLASS_PATH));
+            fm.setLocation(StandardLocation.CLASS_PATH, Arrays.asList(cwd));
+            compile(comp, fm, null, getClass().getName(), dummy);
+
+            File pC_class = new File(new File("p"), "C.class");
+            pC_class.delete();
+
+            DiagnosticCollector<JavaFileObject> dc = new DiagnosticCollector<JavaFileObject>();
+            compile(comp, fm, dc, getClass().getName(), dummy);
+            List<Diagnostic<? extends JavaFileObject>> diags =dc.getDiagnostics();
+
+            System.err.println(diags);
+            switch (diags.size()) {
+                case 0:
+                    throw new Exception("no diagnostics received");
+                case 1:
+                    String code = diags.get(0).getCode();
+                    String expect = "compiler.err.proc.cant.access.1";
+                    if (!expect.equals(code))
+                        throw new Exception("unexpected diag code: " + code
+                                + ", expected: " + expect);
+                    break;
+                default:
+                    throw new Exception("unexpected diags received");
+            }
+        }
+    }
+
+    void compile(JavaCompiler comp, JavaFileManager fm,
+            DiagnosticListener<JavaFileObject> dl,
+            String processor, JavaFileObject... files) throws Exception {
+        System.err.println("compile processor:" + processor + ", files:" + Arrays.asList(files));
+        List<String> opts = new ArrayList<String>();
+        if (processor != null) {
+            // opts.add("-verbose");
+            opts.addAll(Arrays.asList("-processor", processor));
+        }
+        CompilationTask task = comp.getTask(null, fm, dl, opts, null, Arrays.asList(files));
+        boolean ok = task.call();
+        if (dl == null && !ok)
+            throw new Exception("compilation failed");
+    }
+
+    static class JavaSource extends SimpleJavaFileObject {
+        JavaSource(String name, String text) {
+            super(URI.create("js://" + name), JavaFileObject.Kind.SOURCE);
+            this.text = text;
+        }
+        @Override
+        public CharSequence getCharContent(boolean ignoreEncodingErrors) {
+            return text;
+        }
+        final String text;
+    }
+
+    // annotation processor method
+
+    @Override
+    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
+        if (!roundEnv.processingOver()) {
+            PackageElement p = elements.getPackageElement("p");
+            List<? extends Element> elems = p.getEnclosedElements();
+            System.err.println("contents of package p: " + elems);
+            if (elems.size() != 1 || !elems.get(0).getSimpleName().contentEquals("C")) {
+                messager.printMessage(Diagnostic.Kind.ERROR, "unexpected package contents");
+            }
+        }
+        return true;
+    }
+}
+