8197439: Crash with -XDfind=lambda for anonymous class in anonymous class

Ensuring unresolvable anonymous classes are attributed.

Reviewed-by: mcimadamore, sadayapalam

test/langtools/tools/javac/resolve/BrokenAnonymous.java

@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2018, 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 8197439
+ * @summary Ensuring that unresolvable anonymous class is still attributed.
+ * @modules jdk.compiler
+ */
+
+import java.io.*;
+import java.net.*;
+import java.util.*;
+
+import javax.tools.*;
+
+import com.sun.source.tree.CompilationUnitTree;
+import com.sun.source.tree.IdentifierTree;
+import com.sun.source.tree.MethodTree;
+import com.sun.source.tree.VariableTree;
+import com.sun.source.util.*;
+
+public class BrokenAnonymous {
+
+    static class JavaSource extends SimpleJavaFileObject {
+
+        final static String source =
+                        "class C {\n" +
+                        "    Object o1 = new Undef1() {" +
+                        "        int i = 0;\n" +
+                        "        int m(int j) { return i + j; }\n" +
+                        "    }\n" +
+                        "    Object o2 = new Undef2<>() {" +
+                        "        int i = 0;\n" +
+                        "        int m(int j) { return i + j; }\n" +
+                        "    }\n" +
+                        "}";
+
+        JavaSource() {
+            super(URI.create("myfo:/C.java"), JavaFileObject.Kind.SOURCE);
+        }
+
+        @Override
+        public CharSequence getCharContent(boolean ignoreEncodingErrors) {
+            return source;
+        }
+    }
+
+    public static void main(String... args) throws IOException {
+        new BrokenAnonymous().run();
+    }
+
+    void run() throws IOException {
+        File destDir = new File("classes"); destDir.mkdir();
+        final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
+        JavaSource source = new JavaSource();
+        JavacTask ct = (JavacTask)tool.getTask(null, null, null,
+                Arrays.asList("-d", destDir.getPath()),
+                null,
+                Arrays.asList(source));
+        CompilationUnitTree cut = ct.parse().iterator().next();
+        Trees trees = Trees.instance(ct);
+        ct.analyze();
+        new TreePathScanner<Void, Void>() {
+            @Override
+            public Void visitVariable(VariableTree node, Void p) {
+                verifyElementType();
+                return super.visitVariable(node, p);
+            }
+            @Override
+            public Void visitMethod(MethodTree node, Void p) {
+                verifyElementType();
+                return super.visitMethod(node, p);
+            }
+            @Override
+            public Void visitIdentifier(IdentifierTree node, Void p) {
+                verifyElementType();
+                return super.visitIdentifier(node, p);
+            }
+            private void verifyElementType() {
+                TreePath tp = getCurrentPath();
+                assertNotNull(trees.getElement(tp));
+                assertNotNull(trees.getTypeMirror(tp));
+            }
+        }.scan(cut, null);
+    }
+
+    private void assertNotNull(Object obj) {
+        if (obj == null) {
+            throw new AssertionError("Unexpected null value.");
+        }
+    }
+}