/*
* Copyright (c) 2013, 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.
*/
import java.lang.reflect.Method;
/**
* @test
* @bug 8013900
* @summary More warning compiling jaxp.
* This test only test one of the methods used to implement hashCode()
* in com.sun.org.apache.xerces.internal.impl.dv.xs.PrecisionDecimalDV$XPrecisionDecimal.
* Since that method is private the test unfortunately needs to use reflection
* to invoke the method.
* @run main XPrecisionDecimalToString
* @author Daniel Fuchs
*/
public class XPrecisionDecimalToString {
private static final String className =
"com.sun.org.apache.xerces.internal.impl.dv.xs.PrecisionDecimalDV$XPrecisionDecimal";
private static final String methodName = "canonicalToStringForHashCode";
private static final Class<?>[] signature = { String.class, String.class, int.class, int.class };
private static Method method;
// Invokes XPrecisionDecimal.canonicalToStringForHashCode through reflection,
// because the method is private...
//
// Construct a canonical String representation of this number
// for the purpose of deriving a hashCode value compliant with
// equals.
// The toString representation will be:
// NaN for NaN, INF for +infinity, -INF for -infinity, 0 for zero,
// and [1-9]\.[0-9]*[1-9]?(E[1-9][0-9]*)? for other numbers.
private static String canonicalToStringForHashCode(String ivalue, String fvalue, int sign, int pvalue) {
try {
if (method == null) {
Class<?> type = Class.forName(className);
method = type.getDeclaredMethod(methodName, signature);
method.setAccessible(true);
}
} catch (Exception x) {
throw new Error("Impossible to find '"+className+"."+methodName+"': "+ x, x);
}
try {
return (String) method.invoke(null, new Object[] {ivalue, fvalue, sign, pvalue} );
} catch(Exception x) {
throw new Error("Failed to invoke "+className+"."+methodName+"(\""+
ivalue+"\", \""+fvalue+"\", "+sign+", "+pvalue+"): " +x, x);
}
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
test("123","7890",-1,0,"-1.23789E2");
test("0","007890",-1,0,"-7.89E-3");
test("123","7890",1,0,"1.23789E2");
test("0","007890",1,0,"7.89E-3");
test("123","7890",1,10,"1.23789E12");
test("0","007890",1,33,"7.89E30");
test("INF","",1,0,"INF");
test("INF","",-1,0,"-INF");
test("NaN","",0,0,"NaN");
test("0","",1,0,"0");
test("00000","00000",1,10,"0");
test("00000","00000",-1,10,"0");
test("00000","000001",-1,-10,"-1E-16");
}
private static void test(String ival, String fval, int sign, int pvalue, String expected) {
final String canonical = canonicalToStringForHashCode(ival, fval, sign, pvalue);
System.out.println((sign == -1 ? "-" : "") + ival +
("INF".equals(ival) || "NaN".equals(ival) ? ""
: ( "." + fval + "E" + pvalue))
+ " => "+ canonical);
if (!expected.equals(canonical)) {
throw new Error("expected: "+expected+" got: "+ canonical);
}
}
}