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# OpenCensus Java OC-Agent Trace Exporter
The *OpenCensus Java OC-Agent Trace Exporter* is the Java implementation of the OpenCensus Agent
(OC-Agent) Trace Exporter.
## Quickstart
### Add the dependencies to your project
For Maven add to your `pom.xml`:
```xml
<dependencies>
<dependency>
<groupId>io.opencensus</groupId>
<artifactId>opencensus-api</artifactId>
<version>0.25.0</version>
</dependency>
<dependency>
<groupId>io.opencensus</groupId>
<artifactId>opencensus-exporter-trace-ocagent</artifactId>
<version>0.25.0</version>
</dependency>
<dependency>
<groupId>io.opencensus</groupId>
<artifactId>opencensus-impl</artifactId>
<version>0.25.0</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-tcnative-boringssl-static</artifactId>
<version>0.25.0.Final</version>
<scope>runtime</scope>
</dependency>
</dependencies>
```
For Gradle add to your dependencies:
```groovy
compile 'io.opencensus:opencensus-api:0.25.0'
compile 'io.opencensus:opencensus-exporter-trace-ocagent:0.25.0'
runtime 'io.opencensus:opencensus-impl:0.25.0'
runtime 'io.netty:netty-tcnative-boringssl-static:2.0.20.Final'
```
### Register the exporter
```java
public class MyMainClass {
public static void main(String[] args) throws Exception {
OcAgentTraceExporter.createAndRegister();
// ...
}
}
```
## FAQ
### Why is `netty-tcnative-boringssl-static` needed? Which version should I use?
It's because this artifact depends on `grpc-netty` which requires a runtime dependency on `netty-tcnative-boringssl-static`
for it to work. For more details and a table of known working version combinations, see
https://github.com/grpc/grpc-java/blob/master/SECURITY.md#netty.
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