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A execution plugin implementation for debugging RxJava. RxJava gives you low level plugin hooks for things like create, subscribe and lift. The DebugHook defined in this project uses those to give you hooks for the start/end/error of Subscribe, OnNext, OnError, OnComplete and Unsubscribe. For many of the rx.plugins.DebugNotification events you also get the operator where the notification is coming from and going to. It's like having a detailed materialized copy of every rx.Observable in the system.

Master Build Status



Binaries and dependency information for Maven, Ivy, Gradle and others can be found at http://search.maven.org.

Example for Maven:


and for Ivy:

<dependency org="io.reactivex" name="rxjava-debug" rev="x.y.z" />


To build:

$ git clone git@github.com:ReactiveX/RxJavaDebug.git
$ cd RxJavaDebug/
$ ./gradlew build

Bugs and Feedback

For bugs, questions and discussions please use the Github Issues.


Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at


Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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