Fixed #SWS-55: NullPointException thrown when validating nonce without expiration

security/src/test/java/org/springframework/ws/soap/security/xwss/callback/DefaultTimestampValidatorTest.java

@@ -0,0 +1,25 @@
+package org.springframework.ws.soap.security.xwss.callback;
+
+import com.sun.xml.wss.impl.callback.TimestampValidationCallback;
+import junit.framework.TestCase;
+
+public class DefaultTimestampValidatorTest extends TestCase {
+
+    private DefaultTimestampValidator validator;
+
+    protected void setUp() throws Exception {
+        validator = new DefaultTimestampValidator();
+    }
+
+    public void testValidate() throws Exception {
+        TimestampValidationCallback.Request request = new TimestampValidationCallback.UTCTimestampRequest(
+                "2006-09-25T20:42:50Z", "2107-09-25T20:42:50Z", 100, Long.MAX_VALUE);
+        validator.validate(request);
+    }
+
+    public void testValidateNoExpired() throws Exception {
+        TimestampValidationCallback.Request request =
+                new TimestampValidationCallback.UTCTimestampRequest("2006-09-25T20:42:50Z", null, 100, Long.MAX_VALUE);
+        validator.validate(request);
+    }
+}