hotspot/test/runtime/classFileParserBug/TestEmptyBootstrapMethodsAttr.java
changeset 24454 19b3c54faec3
child 29678 dd2f3932c21e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/classFileParserBug/TestEmptyBootstrapMethodsAttr.java	Thu May 15 09:25:27 2014 -0400
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2014, 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 TestEmptyBootstrapMethodsAttr
+ * @bug 8041918
+ * @library /testlibrary
+ * @summary Test empty bootstrap_methods table within BootstrapMethods attribute
+ * @compile TestEmptyBootstrapMethodsAttr.java
+ * @run main TestEmptyBootstrapMethodsAttr
+ */
+
+import java.io.File;
+import com.oracle.java.testlibrary.*;
+
+public class TestEmptyBootstrapMethodsAttr {
+
+    public static void main(String args[]) throws Throwable {
+        System.out.println("Regression test for bug 8041918");
+        String jarFile = System.getProperty("test.src") + File.separator + "emptynumbootstrapmethods.jar";
+
+        // ====== extract the test case
+        ProcessBuilder pb = new ProcessBuilder(new String[] { JDKToolFinder.getJDKTool("jar"), "xvf", jarFile } );
+        OutputAnalyzer output = new OutputAnalyzer(pb.start());
+        output.shouldHaveExitValue(0);
+
+        // Test case #1:
+        // Try loading class with empty bootstrap_methods table where no
+        // other attributes are following BootstrapMethods in attribute table.
+        String className = "emptynumbootstrapmethods1";
+
+        // ======= execute test case #1
+        // Expect a lack of main method, this implies that the class loaded correctly
+        // with an empty bootstrap_methods and did not generate a ClassFormatError.
+        pb = ProcessTools.createJavaProcessBuilder("-cp", ".", className);
+        output = new OutputAnalyzer(pb.start());
+        output.shouldNotContain("java.lang.ClassFormatError");
+        output.shouldContain("Main method not found in class " + className);
+        output.shouldHaveExitValue(1);
+
+        // Test case #2:
+        // Try loading class with empty bootstrap_methods table where an
+        // AnnotationDefault attribute follows the BootstrapMethods in the attribute table.
+        className = "emptynumbootstrapmethods2";
+
+        // ======= execute test case #2
+        // Expect a lack of main method, this implies that the class loaded correctly
+        // with an empty bootstrap_methods and did not generate ClassFormatError.
+        pb = ProcessTools.createJavaProcessBuilder("-cp", ".", className);
+        output = new OutputAnalyzer(pb.start());
+        output.shouldNotContain("java.lang.ClassFormatError");
+        output.shouldContain("Main method not found in class " + className);
+        output.shouldHaveExitValue(1);
+    }
+}