* Supplement missing javax.annotation-api to sentinel-cluster-server-envoy-rls and sentinel-demo-zuul2-gateway
* Upgrade mockito-core to 2.28.2 (up to date)

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

* Move the legacy JUL methods from LogBase to BaseJulLogger.
* Add a JavaLoggingAdapter as the general JUL adapter for the Logger SPI, which makes it convenient to use (as the default logger).
* Add LoggerSpiProvider to resolve Logger SPI.
* Polish the logback demo.

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

- also add demo for Zuul 2.x adapter

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

* There are two types of logger for command center and common modules specified by  annotation of `LogTarget`
* Add implementing examples in `sentinel-demo/sentinel-demo-log-logback`
* All implementations should support placeholder '{}'

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

* Improve async support for Dubbo 2.7.2 and above (not compatible with 2.7.0 and 2.7.1 due to the bad compatibility design of Dubbo Filter)

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

- Add sentinel-spring-webmvc-adapter module and demo

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Bumps [netty-all](https://github.com/netty/netty) from 4.1.31.Final to 4.1.42.Final.

Signed-off-by: dependabot[bot] <support@github.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

- Update the `GatewayParamParser` to support matching the request item.
- Update the internal logic of converting gateway rules to parameter flow rules. The unified mismatched parameters (`SentinelGatewayConstants.GATEWAY_NOT_MATCH_PARAM`) will be configured as an exception item with a large threshold (indicating always pass).
- Add a `GatewayRegexCache` to cache the compiled regex for performance.
- Constant rename: separate URL matching strategy from parameter matching strategy

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

- Add two attributes in DegradeRule: rtSlowRequestAmount and minRequestAmount

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

- Refactor the semantics and logic for blockHandler and fallback
- Add `fallbackClass` support for fallback in global classes
- Add `defaultFallback` support
- Update test cases and demo

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

* support burst count, statistic interval per rule and throttling mode.
* Add fields in ParamFlowRule to support burst count, throttle, statistic interval per rule.
* Deprecate HotParamLeapArray and use token bucket algorithm directly.

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

because Dubbo 2.5.x will be deprecated soon

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Carpenter Lee <hooleeucas@163.com>

* Add spring-context-support 1.0.2 and netty-all 4.1.31.Final dependency, and remove spring-context 5.0.7.RELEASE dependency
* Add comment for dependency

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

* Add a ApiCommandHandler which fetch all registered CommandHandlers so that user can get all available CommandHandlers by request /api
* Add a customized CommandHandler demo

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Signed-off-by: Eric Zhao <sczyh16@gmail.com>