8322027: One XMLStreamException constructor fails to initialize cause

Reviewed-by: joehw, jpai

src/java.xml/share/classes/javax/xml/stream/XMLStreamException.java

@@ -95,7 +95,7 @@ public class XMLStreamException extends Exception {
   public XMLStreamException(String msg, Location location, Throwable th) {
     super("ParseError at [row,col]:["+location.getLineNumber()+","+
           location.getColumnNumber()+"]\n"+
-          "Message: "+msg);
+          "Message: "+msg, th);
     nested = th;
     this.location = location;
   }

test/jaxp/javax/xml/jaxp/unittest/stream/XMLStreamExceptionTest/ExceptionCauseTest.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2023, 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.
+ */
+
+package stream.XMLStreamExceptionTest;
+
+import java.io.IOException;
+
+import javax.xml.stream.Location;
+import javax.xml.stream.XMLStreamException;
+
+import org.testng.Assert;
+import org.testng.annotations.Listeners;
+import org.testng.annotations.Test;
+
+/*
+ * @test
+ * @library /javax/xml/jaxp/libs /javax/xml/jaxp/unittest
+ * @run testng/othervm -DrunSecMngr=true -Djava.security.manager=allow stream.XMLStreamExceptionTest.ExceptionCauseTest
+ * @run testng/othervm stream.XMLStreamExceptionTest.ExceptionCauseTest
+ * @summary Test XMLStreamException constructor initializes chained exception
+ */
+@Listeners({jaxp.library.BasePolicy.class})
+public class ExceptionCauseTest {
+
+    @Test
+    public void testExceptionCause() {
+
+        // Create exception with cause
+        Throwable cause = new Throwable("cause");
+        Location location = new Location() {
+            public int getLineNumber() { return 0; }
+            public int getColumnNumber() { return 0; }
+            public int getCharacterOffset() { return 0; }
+            public String getPublicId() { return null; }
+            public String getSystemId() { return null; }
+        };
+        XMLStreamException e = new XMLStreamException("message", location, cause);
+
+        // Verify cause
+        Assert.assertSame(e.getCause(), cause, "XMLStreamException has the wrong cause");
+    }
+}