{"record":{"id":"41c4c19ca6d94e91","repo":"quarkusio/quarkus","slug":"method-s-s-parameter-s-cannot-be-mapped-to-41c4c1","errorCode":null,"errorMessage":"Method '%s#%s' parameter '%s' cannot be mapped to a Permission constructor parameter,\n                            because expression '%s' specified in the '@PermissionsAllowed#params' attribute does not\n                            match any method or field of the class '%s'.","messagePattern":"Method '(.+?)#(.+?)' parameter '(.+?)' cannot be mapped to a Permission constructor parameter,\n                            because expression '(.+?)' specified in the '@PermissionsAllowed#params' attribute does not\n                            match any method or field of the class '(.+?)'\\.","errorType":"exception","errorClass":"java.lang.IllegalArgumentException","httpStatus":null,"severity":"error","filePath":"extensions/security/deployment/src/main/java/io/quarkus/security/deployment/PermissionSecurityChecks.java","lineNumber":1719,"sourceCode":"            var method = outerClass.method(paramExpression);\n            if (method == null) {\n                method = outerClass.method(toFieldGetter(paramExpression));\n            }\n            if (method != null) {\n                if (!Modifier.isPublic(method.flags())) {\n                    throw new IllegalArgumentException(\"\"\"\n                            Method '%s#%s' parameter '%s' cannot be mapped to a Permission constructor parameter,\n                            because expression '%s' specified in the '@PermissionsAllowed#params' attribute is\n                            accessible from method '%s#%s' which is not a public method.\n                            \"\"\".formatted(securedMethod.declaringClass().name(), securedMethod.name(),\n                            securedMethod.parameterName(methodParamIdx), paramExpression, method.declaringClass().name(),\n                            method.name()));\n                }\n                validateNestedParams(nestedParams, nestedParamIdx + 1, method.returnType(), securedMethod, methodParamIdx);\n            } else {\n                var field = outerClass.field(paramExpression);\n                if (field == null) {\n                    throw new IllegalArgumentException(\"\"\"\n                            Method '%s#%s' parameter '%s' cannot be mapped to a Permission constructor parameter,\n                            because expression '%s' specified in the '@PermissionsAllowed#params' attribute does not\n                            match any method or field of the class '%s'.\n                            \"\"\".formatted(securedMethod.declaringClass().name(), securedMethod.name(),\n                            securedMethod.parameterName(methodParamIdx), paramExpression, outerClass.name()));\n                }\n                if (!Modifier.isPublic(field.flags())) {\n                    throw new IllegalArgumentException(\"\"\"\n                            Method '%s#%s' parameter '%s' cannot be mapped to a Permission constructor parameter,\n                            because expression '%s' specified in the '@PermissionsAllowed#params' attribute is only\n                            accessible from field '%s#%s' which is not a public field. Please declare a getter method.\n                            \"\"\".formatted(securedMethod.declaringClass().name(), securedMethod.name(),\n                            securedMethod.parameterName(methodParamIdx), paramExpression, field.declaringClass().name(),\n                            field.name()));\n                }\n                validateNestedParams(nestedParams, nestedParamIdx + 1, field.type(), securedMethod, methodParamIdx);\n            }\n        }","sourceCodeStart":1701,"sourceCodeEnd":1737,"githubUrl":"https://github.com/quarkusio/quarkus/blob/e1c734241f34c7919086ceb4c9262b4a58f6de44/extensions/security/deployment/src/main/java/io/quarkus/security/deployment/PermissionSecurityChecks.java#L1701-L1737","documentation":"Quarkus resolves each dot-separated segment of an @PermissionsAllowed params expression against the current class's methods and fields. If no method or field with the segment's name (or its getter form) exists on the class, the build fails with this error indicating the expression cannot be mapped to a Permission constructor parameter.","triggerScenarios":"A params expression segment names a method/field that does not exist on the traversed class — typos, wrong property name, or referencing members added at runtime only.","commonSituations":"Typos in property names; renaming a getter or field without updating the annotation; expressions referencing Lombok- or annotation-generated accessors that aren't in the Jandex index; navigating past the end of an object graph.","solutions":["Fix the expression in @PermissionsAllowed#params to exactly match an existing public method or field name (getter forms getX/isX are also resolved).","Verify member names on the class the expression reaches at that segment.","If the member is generated (Lombok, mapstruct), confirm it is present at build time and indexed; otherwise declare it explicitly.","Use a custom Permission class or @PermissionChecker instead of navigating nonexistent members."],"exampleFix":"// before\n@PermissionsAllowed(value = \"read\", params = \"order.ownr\") // typo\n\n// after\n@PermissionsAllowed(value = \"read\", params = \"order.owner\")","handlingStrategy":"validation","validationCode":"// verify each params expression segment matches a public method or field name\nboolean ok = java.util.Arrays.stream(Order.class.getMethods()).anyMatch(m -> m.getName().equals(\"owner\") || m.getName().equals(\"getOwner\"));","typeGuard":null,"tryCatchPattern":null,"preventionTips":["Copy-paste member names instead of typing them to avoid typos","Keep expressions short and validate after renaming members","Compile-time check: use constants or tests that reflect over the target class"],"tags":["quarkus","security","permissionsallowed","typo"],"backgroundTag":"permissions-allowed-expression-mapping","analyzedSha":"e1c734241f34c7919086ceb4c9262b4a58f6de44","analyzedAt":"2026-09-05T17:01:29.979Z","contentChangedAt":"2026-09-05T17:01:29.979Z","schemaVersion":2},"datasetVersion":"2026-09-12T22:17:10.623Z"}