aoqi@0: /*
aoqi@0:  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: /*
aoqi@0: @test
aoqi@0: @bug 8009742
aoqi@0: @summary Bad method name: Serialized lambda in a constructor or class init
aoqi@0: */
aoqi@0: 
aoqi@0: import java.io.*;
aoqi@0: import java.lang.reflect.Method;
aoqi@0: 
aoqi@0: public class SerializedLambdaInInit {
aoqi@0:     static int assertionCount = 0;
aoqi@0: 
aoqi@0:     static void assertTrue(boolean cond) {
aoqi@0:         assertionCount++;
aoqi@0:         if (!cond)
aoqi@0:             throw new AssertionError();
aoqi@0:     }
aoqi@0: 
aoqi@0:     static LSI cvisi = z -> "[" + z + "]";
aoqi@0:     static LSI cisi;
aoqi@0: 
aoqi@0:     static {
aoqi@0:         cisi = z -> z + z;
aoqi@0:     }
aoqi@0: 
aoqi@0:     LSI ivsi = z -> "blah";
aoqi@0:     LSI iisi;
aoqi@0: 
aoqi@0:     SerializedLambdaInInit() {
aoqi@0:         iisi = z -> "*" + z;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public static void main(String[] args) throws Exception {
aoqi@0:         try {
aoqi@0:             // Write lambdas out
aoqi@0:             ByteArrayOutputStream baos = new ByteArrayOutputStream();
aoqi@0:             ObjectOutput out = new ObjectOutputStream(baos);
aoqi@0:             SerializedLambdaInInit slii = new SerializedLambdaInInit();
aoqi@0: 
aoqi@0:             write(out, cvisi );
aoqi@0:             write(out, cisi );
aoqi@0:             write(out, slii.ivsi );
aoqi@0:             write(out, slii.iisi );
aoqi@0:             out.flush();
aoqi@0:             out.close();
aoqi@0: 
aoqi@0:             // Read them back
aoqi@0:             ByteArrayInputStream bais =
aoqi@0:                 new ByteArrayInputStream(baos.toByteArray());
aoqi@0:             ObjectInputStream in = new ObjectInputStream(bais);
aoqi@0:             readAssert(in, "[X]");
aoqi@0:             readAssert(in, "XX");
aoqi@0:             readAssert(in, "blah");
aoqi@0:             readAssert(in, "*X");
aoqi@0:             in.close();
aoqi@0: 
aoqi@0:             // Reflectively test for valid method names
aoqi@0:             for (Method meth : slii.getClass().getDeclaredMethods()) {
aoqi@0:                 checkIdentifier(meth.getName());
aoqi@0:             }
aoqi@0:         } catch (IOException e) {
aoqi@0:             e.printStackTrace();
aoqi@0:             throw e;
aoqi@0:         }
aoqi@0:         assertTrue(assertionCount == 4);
aoqi@0:     }
aoqi@0: 
aoqi@0:     static void write(ObjectOutput out, LSI lamb) throws IOException {
aoqi@0:         out.writeObject(lamb);
aoqi@0:     }
aoqi@0: 
aoqi@0:     static void readAssert(ObjectInputStream in, String expected)  throws IOException, ClassNotFoundException {
aoqi@0:         LSI ls = (LSI) in.readObject();
aoqi@0:         String result = ls.convert("X");
aoqi@0:         System.out.printf("Result: %s\n", result);
aoqi@0:         assertTrue(result.equals(expected));
aoqi@0:     }
aoqi@0: 
aoqi@0:     public static void checkIdentifier(String str) throws Exception {
aoqi@0:         // null and zero length identifers will throw their own exceptions
aoqi@0:         char[] chars = str.toCharArray();
aoqi@0:         if (!Character.isJavaIdentifierStart(chars[0])) {
aoqi@0:             throw new IllegalArgumentException(str + ": bad identifier start character: '" + chars[0] + "'");
aoqi@0:         }
aoqi@0:         for (char ch : chars) {
aoqi@0:             if (!Character.isJavaIdentifierPart(ch)) {
aoqi@0:                 throw new IllegalArgumentException(str + ": bad identifier character: '" + ch + "'");
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: }
aoqi@0: 
aoqi@0: interface LSI extends Serializable {
aoqi@0:     String convert(String x);
aoqi@0: }