diff -r 01f18f59ed3d -r 8447cff6323d hotspot/test/runtime/BoolReturn/NativeSmallIntCallsTest.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/hotspot/test/runtime/BoolReturn/NativeSmallIntCallsTest.java Tue Feb 09 15:54:16 2016 -0500 @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2016, 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 8149170 + * @summary Test native functions return booleans as 0/1 but differently than java functions + * @library /testlibrary + * @compile BoolConstructor.java + * @run main/native NativeSmallIntCallsTest + */ + +// This test shows that returns from native calls for boolean truncate to JNI_TRUE if value != 0 +// and JNI_FALSE if value returned is 0. + +import jdk.test.lib.Asserts; + +public class NativeSmallIntCallsTest { + static native boolean nativeCastToBoolCallTrue(); + static native boolean nativeCastToBoolCallFalse(); + static native boolean nativeCallBoolConstructor(int visible, boolean expected); + static { + System.loadLibrary("NativeSmallIntCalls"); + } + + public static void main(java.lang.String[] unused) throws Exception { + // Call through jni + // JNI makes all results != 0 true for compatibility + boolean nativeTrueVal = nativeCastToBoolCallTrue(); + Asserts.assertTrue(nativeTrueVal, "trueval is false!"); + + boolean nativeFalseVal = nativeCastToBoolCallFalse(); + Asserts.assertTrue(nativeFalseVal, "falseval is false in native!"); + + // Call a constructor or method that passes jboolean values into Java from native + nativeCallBoolConstructor(1, true); + nativeCallBoolConstructor(0x10, true); + nativeCallBoolConstructor(0x100, false); + nativeCallBoolConstructor(0x1000, false); + } +}