WiserAssertions.findFirstOrElseThrow() returns the found message

CHANGELOG

@@ -8,6 +8,7 @@ CHANGELOG
 * Bump kemitix-parent from 1.1.0 to 5.1.1
 * Use kemitix-checkstyle-ruleset 4.1.1
 * Don't throw generic exceptions
+* WiserAssertions.findFirstOrElseThrow() returns the found message
 * [testing] Use a free port for test mail server
 * [testing] Bump mockito-core from 1.10.19 to 2.21.0
 * [testing] Bump spring-context-support from 4.2.6.RELEASE to 5.0.8.RELEASE

src/main/java/net/kemitix/wiser/assertions/WiserAssertions.java

@@ -120,11 +120,12 @@ public final class WiserAssertions {
      *
      * @param predicate         the condition a message must match
      * @param exceptionSupplier the supplier of the exception
+     * @return the first WiserMessage
      */
-    private void findFirstOrElseThrow(
+    private WiserMessage findFirstOrElseThrow(
             final Predicate<WiserMessage> predicate,
             final Supplier<AssertionError> exceptionSupplier) {
-        messages.stream()
+        return messages.stream()
                 .filter(predicate)
                 .findFirst()
                 .orElseThrow(exceptionSupplier);