{"record":{"id":"87fe21a850c18cd6","repo":"flowable/flowable-engine","slug":"provided-emaillike-is-null","errorCode":null,"errorMessage":"Provided emailLike is null","messagePattern":"Provided emailLike is null","errorType":"validation","errorClass":"FlowableIllegalArgumentException","httpStatus":null,"severity":"error","filePath":"modules/flowable-idm-engine/src/main/java/org/flowable/idm/engine/impl/UserQueryImpl.java","lineNumber":204,"sourceCode":"            throw new FlowableIllegalArgumentException(\"Provided display name is null\");\n        }\n        this.displayNameLikeIgnoreCase = displayNameLikeIgnoreCase.toLowerCase();\n        return this;\n    }\n\n    @Override\n    public UserQuery userEmail(String email) {\n        if (email == null) {\n            throw new FlowableIllegalArgumentException(\"Provided email is null\");\n        }\n        this.email = email;\n        return this;\n    }\n\n    @Override\n    public UserQuery userEmailLike(String emailLike) {\n        if (emailLike == null) {\n            throw new FlowableIllegalArgumentException(\"Provided emailLike is null\");\n        }\n        this.emailLike = emailLike;\n        return this;\n    }\n\n    @Override\n    public UserQuery memberOfGroup(String groupId) {\n        if (groupId == null) {\n            throw new FlowableIllegalArgumentException(\"Provided groupId is null\");\n        }\n        this.groupId = groupId;\n        return this;\n    }\n\n    @Override\n    public UserQuery memberOfGroups(List<String> groupIds) {\n        if (groupIds == null) {\n            throw new FlowableIllegalArgumentException(\"Provided groupIds is null\");","sourceCodeStart":186,"sourceCodeEnd":222,"githubUrl":"https://github.com/flowable/flowable-engine/blob/d6d39ce1c69ff244f2d9dc6af756a9b95e865586/modules/flowable-idm-engine/src/main/java/org/flowable/idm/engine/impl/UserQueryImpl.java#L186-L222","documentation":"UserQueryImpl.userEmailLike(String) throws FlowableIllegalArgumentException when the emailLike pattern is null. The method builds a SQL LIKE pattern, and a null pattern is meaningless, so the engine rejects it up front. Supply a pattern such as \"%@example.com\" or drop the criterion.","triggerScenarios":"Calling identityService.createUserQuery().userEmailLike(null).","commonSituations":"Building a search screen where the user typed a wildcard search string that is empty/null and the code passes it through unconditionally.","solutions":["Pass a non-null LIKE pattern (e.g. \"%\" + search + \"%\") or omit the userEmailLike() call when null.","Coerce empty input to null at the controller layer and only call userEmailLike() when a search term exists."],"exampleFix":"// before\nList<User> users = identityService.createUserQuery().userEmailLike(request.getTerm()).list();\n// after\nUserQuery q = identityService.createUserQuery();\nString term = request.getTerm();\nif (term != null && !term.isEmpty()) {\n    q = q.userEmailLike(\"%\" + term + \"%\");\n}\nList<User> users = q.list();","handlingStrategy":"validation","validationCode":"if (emailLike != null && !emailLike.isBlank()) { query = query.userEmailLike(emailLike); }","typeGuard":"boolean hasSearchTerm(String s) { return s != null && !s.isBlank(); }","tryCatchPattern":"try { query.userEmailLike(term); } catch (FlowableIllegalArgumentException e) { log.warn(\"Null emailLike pattern ignored\", e); }","preventionTips":["Normalize empty search input to 'no filter' before querying","Build LIKE patterns defensively ('%' + term + '%') only from non-null terms","Add unit tests covering null/empty search inputs"],"tags":["flowable","idm","null-argument","query"],"backgroundTag":"null-argument","analyzedSha":"d6d39ce1c69ff244f2d9dc6af756a9b95e865586","analyzedAt":"2026-09-11T06:41:19.413Z","contentChangedAt":"2026-09-11T06:41:19.413Z","schemaVersion":2},"datasetVersion":"2026-09-14T11:17:12.474Z"}