| /* |
| * Copyright (c) 2017, 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 8174694 8181033 |
| * @summary improve error message shown when main class can't be loaded |
| * @compile MainClassCantBeLoadedTest.java |
| * @run main MainClassCantBeLoadedTest |
| */ |
| |
| import java.io.*; |
| import java.util.*; |
| |
| public class MainClassCantBeLoadedTest extends TestHelper { |
| private MainClassCantBeLoadedTest(){} |
| |
| @Test |
| void testLoadingClassWithMissingSuper() throws Exception { |
| if (!isEnglishLocale()) { |
| return; |
| } |
| |
| File cwd = new File("."); |
| File srcDir = new File(cwd, "src"); |
| if (srcDir.exists()) { |
| recursiveDelete(srcDir); |
| } |
| srcDir.mkdirs(); |
| |
| /* we want to generate two classes A and B, where B is the superclass of A |
| * class A has a main method |
| */ |
| ArrayList<String> scratchpad = new ArrayList<>(); |
| scratchpad.add("public class A extends B {"); |
| scratchpad.add(" public static void main(String... args) {}"); |
| scratchpad.add("}"); |
| createFile(new File(srcDir, "A.java"), scratchpad); |
| |
| scratchpad.clear(); |
| scratchpad.add("class B {}"); |
| createFile(new File(srcDir, "B.java"), scratchpad); |
| |
| // let's compile both |
| TestResult trCompilation = doExec(javacCmd, |
| "-d", "out", |
| new File(srcDir, "A.java").toString(), |
| new File(srcDir, "B.java").toString()); |
| if (!trCompilation.isOK()) { |
| System.err.println(trCompilation); |
| throw new RuntimeException("Error: compiling"); |
| } |
| |
| // and now B is removed |
| File outDir = new File(cwd, "out"); |
| File bClass = new File(outDir, "B.class"); |
| bClass.delete(); |
| |
| // if A is executed |
| TestResult trExecution = doExec(javaCmd, "-cp", "out", "A"); |
| // then this error message should be generated |
| trExecution.contains("Error: Could not find or load main class A"); |
| trExecution.contains("Caused by: java.lang.NoClassDefFoundError: B"); |
| if (!trExecution.testStatus) |
| System.err.println(trExecution); |
| } |
| |
| @Test |
| void testFailToInitializeMainClass() throws Exception { |
| if (!isEnglishLocale()) { |
| return; |
| } |
| |
| File cwd = new File("."); |
| File srcDir = new File(cwd, "src"); |
| if (srcDir.exists()) { |
| recursiveDelete(srcDir); |
| } |
| srcDir.mkdirs(); |
| |
| /* we want to generate class C that will resolve additional class |
| */ |
| ArrayList<String> scratchpad = new ArrayList<>(); |
| scratchpad.add("public class C {"); |
| scratchpad.add(" public static void main(String... args) {"); |
| scratchpad.add(" try {"); |
| scratchpad.add(" System.out.println(\"loading of restricted class\");"); |
| scratchpad.add(" } catch (Exception e) {"); |
| scratchpad.add(" java.security.Provider p = new com.sun.crypto.provider.SunJCE();"); |
| scratchpad.add(" p.toString();"); |
| scratchpad.add(" }"); |
| scratchpad.add(" }"); |
| scratchpad.add("}"); |
| createFile(new File(srcDir, "C.java"), scratchpad); |
| |
| |
| // Compile and execute C should succeed |
| TestResult trCompilation = doExec(javacCmd, |
| "--add-exports", "java.base/com.sun.crypto.provider=ALL-UNNAMED", |
| "-d", "out", |
| new File(srcDir, "C.java").toString()); |
| if (!trCompilation.isOK()) { |
| System.err.println(trCompilation); |
| throw new RuntimeException("Error: compiling"); |
| } |
| |
| TestResult trExecution = doExec(javaCmd, |
| "--add-exports", "java.base/com.sun.crypto.provider=ALL-UNNAMED", |
| "-cp", "out", "C"); |
| if (!trExecution.isOK()) { |
| System.err.println(trExecution); |
| throw new RuntimeException("Error: executing"); |
| } |
| |
| // Execute C with security manager will fail with AccessControlException |
| trExecution = doExec(javaCmd, |
| "-Djava.security.manager", |
| "--add-exports", "java.base/com.sun.crypto.provider=ALL-UNNAMED", |
| "-cp", "out", "C"); |
| |
| // then this error message should be generated |
| trExecution.contains("Error: Unable to initialize main class C"); |
| trExecution.contains("Caused by: java.security.AccessControlException: " + |
| "access denied (\"java.lang.RuntimePermission\"" + |
| " \"accessClassInPackage.com.sun.crypto.provider\")"); |
| if (!trExecution.testStatus) |
| System.err.println(trExecution); |
| } |
| |
| public static void main(String[] args) throws Exception { |
| MainClassCantBeLoadedTest a = new MainClassCantBeLoadedTest(); |
| a.run(args); |
| if (testExitValue > 0) { |
| System.out.println("Total of " + testExitValue + " failed"); |
| throw new RuntimeException("Test failed"); |
| } else { |
| System.out.println("Test passed"); |
| } |
| } |
| } |