Fix javadoc parameter names.

Closes: #4179

Author: Ahli

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/aggregation/ScriptOperators.java

@@ -446,7 +446,7 @@ public AccumulatorBuilder init(String function) {
 			/**
 			 * Define the optional {@code initArgs} for the {@link #init(String)} function.
 			 *
-			 * @param function must not be {@literal null}.
+			 * @param args must not be {@literal null}.
 			 * @return this.
 			 */
 			@Override

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/geo/GeoSpatialIndexTests.java

@@ -117,8 +117,8 @@ public void useGeneratedNameShouldGenerateAnIndexName() {
 	/**
 	 * Returns whether an index with the given name exists for the given entity type.
 	 *
-	 * @param indexName
 	 * @param entityType
+	 * @param type
 	 * @return
 	 */
 	private boolean hasIndexOfType(Class<?> entityType, final String type) {

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/messaging/SubscriptionUtils.java

@@ -45,7 +45,7 @@ static void awaitSubscription(Subscription subscription) throws InterruptedExcep
 	 * Wait for all {@link Subscription Subscriptions} to {@link Subscription#isActive() become active} but not longer
 	 * than {@link #DEFAULT_TIMEOUT}.
 	 *
-	 * @param subscription
+	 * @param subscriptions
 	 * @throws InterruptedException
 	 */
 	static void awaitSubscriptions(Subscription... subscriptions) throws InterruptedException {
@@ -131,7 +131,8 @@ static void awaitMessages(CollectingMessageListener listener, int nrMessages, Du
 	/**
 	 * {@link MessageListener} implementation collecting received {@link Message messages}.
 	 *
-	 * @param <M>
+	 * @param <S> source message type.
+	 * @param <T> target message type.
 	 */
 	static class CollectingMessageListener<S, T> implements MessageListener<S, T> {
 

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/test/util/Assertions.java

@@ -32,7 +32,7 @@ private Assertions() {
 	/**
 	 * Create assertion for {@link Document}.
 	 *
-	 * @param actual the actual value.
+	 * @param document the actual value.
 	 * @return the created assertion object.
 	 */
 	public static DocumentAssert assertThat(Document document) {