HHH-19975 validate LoadEvent when it is reused

hibernate-core/src/main/java/org/hibernate/event/spi/LoadEvent.java

@@ -4,6 +4,7 @@
  */
 package org.hibernate.event.spi;
 
+import org.hibernate.Internal;
 import org.hibernate.LockMode;
 import org.hibernate.LockOptions;
 import org.hibernate.Locking;
@@ -66,32 +67,36 @@ private LoadEvent(
 			boolean isAssociationFetch,
 			EventSource source,
 			Boolean readOnly) {
-
 		super( source );
+		this.entityId = entityId;
+		this.entityClassName = entityClassName;
+		this.instanceToLoad = instanceToLoad;
+		this.lockOptions = lockOptions;
+		this.isAssociationFetch = isAssociationFetch;
+		this.readOnly = readOnly;
+		validate();
+	}
 
+	@Internal
+	public void validate() {
 		if ( entityId == null ) {
-			throw new IllegalArgumentException( "id to load is required for loading" );
+			throw new IllegalArgumentException( "Identifier may not be null" );
 		}
 
-		if ( lockOptions.getLockMode() == LockMode.WRITE ) {
-			throw new IllegalArgumentException("Invalid lock mode for loading");
+		final var lockMode = lockOptions.getLockMode();
+		if ( lockMode == LockMode.WRITE ) {
+			throw new IllegalArgumentException( "Invalid lock mode: " + LockMode.WRITE );
 		}
-		else if ( lockOptions.getLockMode() == null ) {
+		else if ( lockMode == null ) {
 			lockOptions.setLockMode( LockMode.NONE );
 		}
-
-		this.entityId = entityId;
-		this.entityClassName = entityClassName;
-		this.instanceToLoad = instanceToLoad;
-		this.lockOptions = lockOptions;
-		this.isAssociationFetch = isAssociationFetch;
-		this.readOnly = readOnly;
 	}
 
 	public Object getEntityId() {
 		return entityId;
 	}
 
+	@Internal
 	public void setEntityId(Object entityId) {
 		this.entityId = entityId;
 	}
@@ -100,6 +105,7 @@ public String getEntityClassName() {
 		return entityClassName;
 	}
 
+	@Internal
 	public void setEntityClassName(String entityClassName) {
 		this.entityClassName = entityClassName;
 	}
@@ -108,6 +114,7 @@ public boolean isAssociationFetch() {
 		return isAssociationFetch;
 	}
 
+	@Internal
 	public void setAssociationFetch(boolean associationFetch) {
 		isAssociationFetch = associationFetch;
 	}
@@ -116,6 +123,7 @@ public Object getInstanceToLoad() {
 		return instanceToLoad;
 	}
 
+	@Internal
 	public void setInstanceToLoad(Object instanceToLoad) {
 		this.instanceToLoad = instanceToLoad;
 	}
@@ -124,6 +132,7 @@ public LockOptions getLockOptions() {
 		return lockOptions;
 	}
 
+	@Internal
 	public void setLockOptions(LockOptions lockOptions) {
 		this.lockOptions = lockOptions;
 	}
@@ -140,12 +149,11 @@ public Boolean getReadOnly() {
 		return readOnly;
 	}
 
+	@Internal
 	public void setReadOnly(Boolean readOnly) {
 		this.readOnly = readOnly;
 	}
 
-
-
 	/**
 	 * @deprecated Use {@linkplain #getLockOptions()} instead.
 	 */

hibernate-core/src/main/java/org/hibernate/internal/SessionImpl.java

@@ -1128,6 +1128,7 @@ protected LoadEvent makeLoadEvent(String entityName, Object id, Boolean readOnly
 			event.setReadOnly( readOnly );
 			event.setLockOptions( lockOptions );
 			event.setAssociationFetch( false );
+			event.validate();
 			return event;
 		}
 	}