Install the Java SDK

The Java SDK is distributed through Maven Central and is created with source and target compatibility of Java 8 (version 1.8). The core-api and httpclient packages are optimizely-sdk-core-api and optimizely-sdk-httpclient, respectively.

core-api requires org.slf4j:slf4j-api:1.7.16 and a supported JSON parser. We currently integrate with these parsers (listed in their selection order priority):

1. Jackson
2. GSON
3. json.org
4. json-simple

If more than one of these parsers are available at runtime, the core-api chooses one for use per the selection order priority. If none of these packages are already provided in your project's classpath, you must add one.

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Note

Optimizely Feature Experimentation previously distributed the Java SDK through Bintray/JCenter. But, as of April 27, 2021, Bintray/JCenter will become a read-only repository indefinitely. The publish repository has been migrated to MavenCentral for the SDK version 3.8.1 or later. Older versions will still be available in JCenter.

repositories {
    mavenCentral()
    jcenter()
}

dependencies {
    compile 'com.optimizely.ab:core-api:3.8.1'
    compile 'com.optimizely.ab:core-httpclient-impl:3.8.1'
    compile 'org.apache.httpcomponents:httpclient:4.5.6'

    // The SDK integrates with multiple JSON parsers. Here, we use Jackson.
    compile 'com.fasterxml.jackson.core:jackson-core:2.9.8'
    compile 'com.fasterxml.jackson.core:jackson-annotations:2.9.8'
    compile 'com.fasterxml.jackson.core:jackson-databind:2.9.8'

    compile 'org.slf4j:slf4j-api:1.7.16'
    compile 'ch.qos.logback:logback-classic:1.1.7'
}

The full source code is on GitHub.