{"record":{"id":"231e2d83558708b6","repo":"hibernate/hibernate-orm","slug":"entity-may-not-be-null-231e2d","errorCode":null,"errorMessage":"Entity may not be null","messagePattern":"Entity may not be null","errorType":"exception","errorClass":"IllegalArgumentException","httpStatus":null,"severity":"error","filePath":"hibernate-core/src/main/java/org/hibernate/event/spi/RefreshEvent.java","lineNumber":37,"sourceCode":" *\n * @see org.hibernate.Session#refresh\n */\npublic class RefreshEvent extends AbstractSessionEvent {\n\n\tprivate final Object object;\n\tprivate String entityName;\n\n\tprivate LockOptions lockOptions = new LockOptions(\n\t\t\tLockMode.READ,\n\t\t\tTimeouts.WAIT_FOREVER_MILLI,\n\t\t\tPessimisticLockScope.NORMAL,\n\t\t\tLocking.FollowOn.ALLOW\n\t);\n\n\tpublic RefreshEvent(@Nonnull Object object, @Nonnull EventSource source) {\n\t\tsuper(source);\n\t\tif (object == null) {\n\t\t\tthrow new IllegalArgumentException(\"Entity may not be null\");\n\t\t}\n\t\tthis.object = object;\n\t}\n\n\tpublic RefreshEvent(@Nullable String entityName, @Nonnull Object object, @Nonnull EventSource source){\n\t\tthis(object, source);\n\t\tthis.entityName = entityName;\n\t}\n\n\tpublic RefreshEvent(@Nonnull Object object, @Nonnull LockMode lockMode, @Nonnull EventSource source) {\n\t\tthis(object, source);\n\t\tif (lockMode == null) {\n\t\t\tthrow new IllegalArgumentException(\"LockMode may not be null\");\n\t\t}\n\t\tthis.lockOptions.setLockMode(lockMode);\n\t}\n\n\tpublic RefreshEvent(@Nonnull Object object, @Nonnull LockOptions lockOptions, @Nonnull EventSource source) {","sourceCodeStart":19,"sourceCodeEnd":55,"githubUrl":"https://github.com/hibernate/hibernate-orm/blob/fad1729dce015f908198d57a8d80274a30f905a5/hibernate-core/src/main/java/org/hibernate/event/spi/RefreshEvent.java#L19-L55","documentation":"Error \"Entity may not be null\" thrown in hibernate/hibernate-orm.","triggerScenarios":"Thrown when a caller passes a null Entity to the API guarded in RefreshEvent.java:37.","commonSituations":"Typical situations: calling the method with an uninitialized variable; a lookup that returned null being passed straight through; missing null-checks in application code before invoking Hibernate.","solutions":["Check the entity argument for null before calling refresh()."],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"fad1729dce015f908198d57a8d80274a30f905a5","analyzedAt":"2026-08-22T04:13:57.527Z","schemaVersion":2},"datasetVersion":"2026-08-22T09:17:25.309Z"}