---
title: SDK prerequisites
description: The following prerequisites must be met before using the Add-on SDK for Java.
component: pingaccess
version: 9.0
page_id: pingaccess:agents_and_integrations:pa_add_on_sdk_prereqs
canonical_url: https://docs.pingidentity.com/pingaccess/9.0/agents_and_integrations/pa_add_on_sdk_prereqs.html
revdate: February 6, 2023
---

# SDK prerequisites

The following prerequisites must be met before using the Add-on SDK for Java.

Before you start, ensure you have the Java SDK and [Apache Maven](http://maven.apache.org/download.html) installed. The samples use Apache Maven and assume that the PingAccess SDK can be referenced as a dependency. They reference Ping Identity's public Maven repository, located at: `http://maven.pingidentity.com/release`.

|   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| - | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
|   | The Ping Identity Maven repository cannot be accessed through a browser because it is designed solely for backend use. To use it, add it to your Maven configuration. For example, including this code in the Maven `pom.xml` file adds the Ping Identity repository to your Maven configuration:```
    <repositories>
        <repository>
            <releases>
                <enabled>true</enabled>
                <updatePolicy>always</updatePolicy>
                <checksumPolicy>warn</checksumPolicy>
            </releases>
            <id>PingIdentityMaven</id>
            <name>PingIdentity Release</name>
            <url>http://maven.pingidentity.com/release/</url>
            <layout>default</layout>
        </repository>
    </repositories>
``` |

If Internet access is unavailable, update the `pingaccess-sdk` dependency in your `pom.xml` to point to the local installation.

Replace *\<PA\_HOME>* with the path to the PingAccess installation.

```
<dependency>
        <groupId>com.pingidentity.pingaccess</groupId>
        <artifactId>pingaccess-sdk</artifactId>
        <version>4.0.1.3</version>
        <scope>system</scope>
        <systemPath><PA_HOME>/lib/pingaccess-sdk-4.2.0.0.jar</systemPath>
</dependency>
<dependency>
        <groupId>javax.validation</groupId>
        <artifactId>validation-api</artifactId>
        <version>1.0.0.GA</version>
	 <scope>system</scope>
        <systemPath><PA_HOME>/lib/validation-api-1.0.0.GA.jar</systemPath>
</dependency>
<dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-api</artifactId>
        <version>1.7.4</version>
	 <scope>system</scope>
        <systemPath><PA_HOME>/lib/slf4j-api-1.7.4.jar</systemPath>
</dependency>
<dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-log4j12</artifactId>
        <version>1.7.4</version>
	 <scope>system</scope>
        <systemPath><PA_HOME>/lib/slf4j-log4j12-1.7.4.jar</systemPath>
</dependency>
```