ErrLookup › Netflix/Hystrix
Netflix/Hystrix
Hystrix is a latency and fault tolerance library designed to isolate points of access to remote systems, services and 3rd party libraries, stop cascading failure and enable resilience in complex distributed systems where failure is inevitable. · Java · 248 source files
Analyzed at 5ce3bc58c3 on 2026-08-14. 67 documented errors.
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
| method cannot be annotated with HystrixCommand and HystrixCo | validation | error | hystrix, javanica, annotation, aop, misuse |
| Collapser method must have one argument: {} | validation | error | hystrix, javanica, collapser, signature, misuse |
| batch method is absent: {} | validation | error | hystrix, javanica, collapser, batch-method, misuse |
| required batch method for collapser is absent, wrong generic | validation | error | hystrix, javanica, collapser, generics, batch-method |
| Return type of batch method must be java.util.List parametri | validation | error | hystrix, javanica, collapser, generics, return-type |
| batch method must be annotated with HystrixCommand annotatio | validation | error | hystrix, javanica, collapser, annotation, misuse |
| 'https://github.com/Netflix/Hystrix/issues/1458' - no valid | validation | error | hystrix, javanica, aop, aspectj, proxy, issue-1458 |
| Sub type at nesting level %d of %s is expected to be generic | validation | error | hystrix, javanica, collapser, generics, raw-type |
| Unsupported type {} | exception | error | hystrix, javanica, generics, reflection, collapser |
| method with name '{}' doesn't exist in class '{}' | validation | error | hystrix, javanica, cache, cache-key, reflection |
| return type of cacheKey method must be String. Method: '{}', | validation | error | hystrix, javanica, cache, cache-key, return-type |
| AsyncResult is just a stub and cannot be used as complete im | exception | warning | hystrix, javanica, async-result, future, misuse |
| unsupported execution type: {} | exception | error | hystrix, javanica, execution-type, version-conflict, internal |
| Command should implement {} interface to execute in: {} mode | exception | error | hystrix, javanica, execution-type, observable, internal |
| Command should implement {} interface to execute in observab | exception | error | hystrix, javanica, execution-type, observable, internal |
| unsupported rx type: {} | exception | error | hystrix, javanica, rxjava, rxjava2, observable, type-mismatch |
| Failed to set Thread Pool properties. {} | exception | error | hystrix, javanica, configuration, thread-pool, annotation |
| Failed to set Command properties. {} | exception | error | hystrix, javanica, configuration, command-properties, annotation |
| return type of '{}' method should be {}; | validation | error | hystrix, javanica, closure, reflection, type-mismatch |
| unknown {} property: {} | validation | error | hystrix, javanica, configuration, properties, validation |
| bad property value. property name '{}'. Expected int value, | validation | error | hystrix, javanica, configuration, number-parsing, validation |
| bad property value. property name '{}'. Expected correct enu | validation | error | hystrix, javanica, configuration, enum, validation |
| It's prohibited to create instances of the class. | exception | warning | hystrix, javanica, utility-class, instantiation, static |
| wrong 'weavingMode' property, supported: " + Arrays.toString | exception | error | hystrix, javanica, aspectj, weaving, system-property, configuration |
| fallback cannot return Future if the fallback isn't command | exception | error | hystrix, javanica, fallback, async, future, validation |
| fallback cannot return Future if command isn't asynchronous. | exception | error | hystrix, javanica, fallback, async, future, validation |
| fallback cannot return Observable if command isn't observabl | exception | error | hystrix, javanica, fallback, observable, rxjava, validation |
| fallback cannot return 'void' if command return type is " + | exception | error | hystrix, javanica, fallback, completable, rxjava, validation |
| Incompatible return types. \nCommand method: " + commandMeth | exception | error | hystrix, javanica, fallback, generics, type-mismatch, validation |
| Incompatible return types. \nCommand method: " + commandMeth | exception | error | hystrix, javanica, fallback, return-type, validation |
| fallback method wasn't found: " + name + "(" + Arrays.toStri | exception | error | hystrix, javanica, fallback, reflection, method-resolution |
| HystrixNetworkAuditorEventListener can not be NULL | exception | error | hystrix, network-auditor, javaagent, null-check, listener |
| Failed trying to wrap class: " + className | exception | critical | hystrix, network-auditor, javaagent, javassist, jdk-compatibility, instrumentation |
| Failed trying to wrap constructor of class: " + className | exception | critical | hystrix, network-auditor, javaagent, javassist, instrumentation, constructor |
| Failed trying to wrap method [" + method.getName() + "] of c | exception | error | java, javaagent, bytecode, javassist, network-auditor |
| HystrixCommandGroup can not be NULL | exception | error | java, hystrix, configuration, constructor-validation |
| " + getLogMessagePrefix() + " command executed multiple time | exception | error | java, hystrix, state-machine, reuse, api-misuse |
| HystrixCollapser failed while executing. | exception | error | java, hystrix, collapser, exception-wrapping |
| No fallback available. | exception | error | java, hystrix, fallback, resilience |
| Not an event that can be converted to HystrixEventType : {ev | exception | error | java, hystrix, metrics, enum-conversion, internal |
| Not an event that can be converted to HystrixEventType.Threa | exception | error | java, hystrix, metrics, thread-pool, enum-conversion |
| Not an event that can be converted to HystrixEventType.Colla | exception | error | java, hystrix, metrics, collapser, enum-conversion |
| Request caching is not available. Maybe you need to initiali | exception | error | java, hystrix, request-context, caching, thread-local |
| Interrupted while waiting for thread-pools to terminate. Poo | exception | warning | java, hystrix, shutdown, thread-pool, interruption |
| Response has already terminated so response can not be set : | exception | error | java, hystrix, collapser, rxjava, lifecycle |
| Response has already terminated so exception can not be set | exception | error | java, hystrix, collapser, exception-handling, lifecycle |
| Trying to start null batch which means it was shutdown alrea | exception | error | java, hystrix, collapser, race-condition, shutdown |
| Percentile ({percentile}) is not currently cached | exception | error | java, hystrix, metrics, percentiles, hdrhistogram |
| You have set the bucket size to 0ms. Please set a positive | exception | error | java, hystrix, configuration, metrics, circuit-breaker |
| Another strategy was already registered. | exception | error | java, hystrix, plugins, global-state, initialization-order |
| ${classSimpleName} implementation is not an instance of ${cl | exception | error | hystrix, configuration, reflection, classcast |
| ${classSimpleName} implementation class not found: ${impleme | exception | error | hystrix, configuration, classpath, reflection |
| ${classSimpleName} implementation not able to be instantiate | exception | error | hystrix, configuration, reflection, constructor |
| ${classSimpleName} implementation not able to be accessed: $ | exception | error | hystrix, configuration, reflection, access-modifiers |
| Rejected command because thread-pool queueSize is at rejecti | exception | warning | hystrix, thread-pool, rejection, backpressure |
| Hystrix does not support delayed scheduling | exception | error | hystrix, rxjava, scheduler, unsupported-operation |
| Failed executing wrapped Action0 | exception | error | hystrix, rxjava, exception-wrapping, debugging |
| HystrixRequestContext.initializeContext() must be called at | exception | error | hystrix, request-context, threadlocal, servlet-filter |
| The timeInMilliseconds must divide equally into numberOfBuck | exception | error | hystrix, metrics, configuration, validation |
| The timeInMilliseconds must divide equally into numberOfBuck | exception | error | hystrix, metrics, percentiles, configuration |
| Couldn't invoke ThreadManager.currentRequestThreadFactory | exception | error | hystrix, appengine, reflection, environment |
| Could not initialize intrinsics | exception | critical | hystrix, jvm-internals, security-manager, unsafe |
| Not implemented anymore. Will be implemented in a new class | exception | error | hystrix, serialization, deprecated, migration |
| Not implemented anymore. Will be implemented in a new class | exception | error | hystrix, serialization, deprecated-api, unsupportedoperation, migration, runtime |
| Not implemented anymore. Will be implemented in a new class | exception | error | hystrix, serialization, deprecated-api, bytebuffer, migration, runtime |
| Not implemented anymore. Will be implemented in a new class | exception | error | hystrix, serialization, deprecated-api, request-log, migration, runtime |
| Not implemented anymore. Will be implemented in a new class | exception | error | hystrix, serialization, deprecated-api, metrics-publisher, migration, runtime |