# XPack ClassNotFoundException: com.unboundid.util.Debug in java

**URL:** <https://discuss.elastic.co/t/xpack-classnotfoundexception-com-unboundid-util-debug-in-java/160852>\
**Category:** Elasticsearch\
**Tags:** elastic-stack-security\
**Created:** [December 14, 2018, 7:14am UTC](https://discuss.elastic.co/t/xpack-classnotfoundexception-com-unboundid-util-debug-in-java/160852 "2018-12-14T07:14:53Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![lip](https://avatars.discourse-cdn.com/v4/letter/l/eb9ed0/32.png) [@lip](https://discuss.elastic.co/u/lip)\
**Post date:** [December 14, 2018, 7:14am UTC](https://discuss.elastic.co/t/xpack-classnotfoundexception-com-unboundid-util-debug-in-java/160852/1 "2018-12-14T07:14:53Z")

</div>

**I m using Elasticsearch 6.3.1 and xpack 6.3.1,here is the Exception in my project**  
Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException: com.unboundid.util.Debug  
at org.elasticsearch.xpack.core.XPackPlugin$1.run(XPackPlugin.java:101)  
at org.elasticsearch.xpack.core.XPackPlugin$1.run(XPackPlugin.java:95)  
at java.security.AccessController.doPrivileged(Native Method)  
at org.elasticsearch.xpack.core.XPackPlugin.(XPackPlugin.java:95)  
... 82 more  
Caused by: java.lang.ClassNotFoundException: com.unboundid.util.Debug  
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1328)  
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1156)  
at java.lang.Class.forName0(Native Method)  
at java.lang.Class.forName(Class.java:264)  
at org.elasticsearch.xpack.core.XPackPlugin$1.run(XPackPlugin.java:99)  
... 85 more

and here is my gradle  
repositories{  
maven{  
url:"[https://artifacts.elastic.co/maven](https://artifacts.elastic.co/maven)"  
}  
}

dependencies{  
compile 'org.elasticsearch.client:x-pack-transport:6.3.1'  
}

and i check the stack source code ,it is in a static are ,its looking for class com.unboundid.util.Debug

```
try {
            AccessController.doPrivileged(new PrivilegedAction<Void>() {
                public Void run() {
                    try {
                        Class.forName("com.unboundid.util.Debug");
                        return null;
                    } catch (ClassNotFoundException var2) {
                        throw new RuntimeException(var2);
                    }
                }
            });
        } 

```

please help me with this ,i m sure it can be downloaded and used. but still have this problem.

---

<div class="post-metadata">

**Author:** ![TimV](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/timv/32/13162_2.png) [@TimV](https://discuss.elastic.co/u/TimV)\
**Post date:** [December 14, 2018, 7:30am UTC](https://discuss.elastic.co/t/xpack-classnotfoundexception-com-unboundid-util-debug-in-java/160852/2 "2018-12-14T07:30:31Z")

</div>

See: [https://github.com/elastic/elasticsearch/issues/31946](https://github.com/elastic/elasticsearch/issues/31946)

You need to add the following additional dependencies to your POM, or upgrade to **6.3.2**

```auto
      <dependency>
            <groupId>com.unboundid</groupId>
            <artifactId>unboundid-ldapsdk</artifactId>
            <version>3.2.0</version>
        </dependency>
        <dependency>
            <groupId>org.bouncycastle</groupId>
            <artifactId>bcprov-jdk15on</artifactId>
            <version>1.58</version>
        </dependency>
        <dependency>
            <groupId>org.bouncycastle</groupId>
            <artifactId>bcpkix-jdk15on</artifactId>
            <version>1.58</version>
        </dependency>

```

---

<div class="post-metadata">

**Author:** ![lip](https://avatars.discourse-cdn.com/v4/letter/l/eb9ed0/32.png) [@lip](https://discuss.elastic.co/u/lip)\
**Post date:** [December 14, 2018, 8:00am UTC](https://discuss.elastic.co/t/xpack-classnotfoundexception-com-unboundid-util-debug-in-java/160852/3 "2018-12-14T08:00:49Z")

</div>

Thank u very much,this works for me . 😃

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [January 11, 2019, 8:00am UTC](https://discuss.elastic.co/t/xpack-classnotfoundexception-com-unboundid-util-debug-in-java/160852/4 "2019-01-11T08:00:50Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.