Log exceptions thrown from events. (#1187)

Closes #1075.

Author: mikereiche

src/main/java/org/springframework/data/couchbase/core/CouchbaseTemplateSupport.java

@@ -182,7 +182,7 @@ public void maybeEmitEvent(CouchbaseMappingEvent<?> event) {
 			try {
 				this.applicationContext.publishEvent(event);
 			} catch (Exception e) {
-				e.printStackTrace();
+				LOG.error("exception emitting event "+event, e);
 			}
 		} else {
 			LOG.info("maybeEmitEvent called, but CouchbaseTemplate not initialized with applicationContext");
@@ -196,11 +196,7 @@ private boolean canPublishEvent() {
 
 	protected <T> T maybeCallBeforeConvert(T object, String collection) {
 		if (entityCallbacks != null) {
-			try {
-				return entityCallbacks.callback(BeforeConvertCallback.class, object, collection);
-			} catch (Exception e) {
-				e.printStackTrace();
-			}
+			return entityCallbacks.callback(BeforeConvertCallback.class, object, collection);
 		} else {
 			LOG.info("maybeCallBeforeConvert called, but CouchbaseTemplate not initialized with applicationContext");
 		}

src/main/java/org/springframework/data/couchbase/core/ReactiveCouchbaseTemplateSupport.java

@@ -189,7 +189,7 @@ public void maybeEmitEvent(CouchbaseMappingEvent<?> event) {
 			try {
 				this.applicationContext.publishEvent(event);
 			} catch (Exception e) {
-				e.printStackTrace();
+				LOG.error("exception emitting event "+event, e);
 			}
 		} else {
 			LOG.info("maybeEmitEvent called, but ReactiveCouchbaseTemplate not initialized with applicationContext");
@@ -203,11 +203,7 @@ private boolean canPublishEvent() {
 
 	protected <T> Mono<T> maybeCallBeforeConvert(T object, String collection) {
 		if (reactiveEntityCallbacks != null) {
-			try {
-				return reactiveEntityCallbacks.callback(ReactiveBeforeConvertCallback.class, object, collection);
-			} catch (Exception e) {
-				e.printStackTrace();
-			}
+			return reactiveEntityCallbacks.callback(ReactiveBeforeConvertCallback.class, object, collection);
 		} else {
 			LOG.info("maybeCallBeforeConvert called, but ReactiveCouchbaseTemplate not initialized with applicationContext");
 		}