# ElasticSearch + ProGuard **URL:** \ **Category:** Elasticsearch\ **Created:** [October 26, 2012, 10:24am UTC](https://discuss.elastic.co/t/elasticsearch-proguard/9478 "2012-10-26T10:24:52Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Adam\_Warski](https://avatars.discourse-cdn.com/v4/letter/a/f475e1/32.png) [@Adam\_Warski](https://discuss.elastic.co/u/Adam_Warski)\ **Post date:** [October 26, 2012, 10:24am UTC](https://discuss.elastic.co/t/elasticsearch-proguard/9478/1 "2012-10-26T10:24:52Z")
Hello, I'm trying to run ProGuard on one project that includes ElasticSearch. However the process fails with a DuplicateZipEntry exception: [error] {file:/Users/adamw/projects/...}.../\*:proguard: java.io.IOException: Can't write [/Users/adamw/projects/.../target/scala-2.9.1/....min.jar] (Can't read [/Users/adamw/.ivy2/cache/org.elasticsearch/elasticsearch/jars/elasticsearch-0.19.10.jar(;;;;!META-INF/MANIFEST.MF)] (Duplicate zip entry [elasticsearch-0.19.10.jar:org/apache/lucene/index/BufferedDeletesStream$1.class])) When looking at the BufferedDeletesStream class, indeed it says: // LUCENE MONITOR: We copied this class from Lucene, effectively overriding it with our implementation // if it comes first in the classpath, allowing for faster apply deletes based on terms which is the cause of the issue. Not sure if it will be a problem for anyone else. Still looking for a solution using proguard configuration, just letting you know :). Adam -- ---
**Author:** ![Ivan](https://avatars.discourse-cdn.com/v4/letter/i/df788c/32.png) [@Ivan](https://discuss.elastic.co/u/Ivan)\ **Post date:** [October 26, 2012, 4:09pm UTC](https://discuss.elastic.co/t/elasticsearch-proguard/9478/2 "2012-10-26T16:09:15Z")
Elasticsearch shadows the Lucene library, so one option would be to not to include Lucene. -- Ivan On Fri, Oct 26, 2012 at 3:24 AM, Adam Warski [adamwtw@gmail.com](mailto:adamwtw@gmail.com) wrote: > Hello, > > I'm trying to run ProGuard on one project that includes Elasticsearch. > However the process fails with a DuplicateZipEntry exception: > > [error] {file:/Users/adamw/projects/...}.../\*:proguard: > java.io.IOException: Can't write > [/Users/adamw/projects/.../target/scala-2.9.1/....min.jar] (Can't read > [/Users/adamw/.ivy2/cache/org.elasticsearch/elasticsearch/jars/elasticsearch-0.19.10.jar(;;;;!META-INF/MANIFEST.MF)] > (Duplicate zip entry > [elasticsearch-0.19.10.jar:org/apache/lucene/index/BufferedDeletesStream$1.class])) > > When looking at the BufferedDeletesStream class, indeed it says: > > // LUCENE MONITOR: We copied this class from Lucene, effectively > overriding it with our implementation > // if it comes first in the classpath, allowing for faster apply deletes > based on terms > > which is the cause of the issue. Not sure if it will be a problem for > anyone else. Still looking for a solution using proguard configuration, > just letting you know :). > > Adam > > -- -- ---
**Author:** ![Adam\_Warski\_2](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/adam_warski_2/32/2668_2.png) [@Adam\_Warski\_2](https://discuss.elastic.co/u/Adam_Warski_2)\ **Post date:** [October 26, 2012, 4:17pm UTC](https://discuss.elastic.co/t/elasticsearch-proguard/9478/3 "2012-10-26T16:17:53Z")
Well it shadows only this one particular class. I found a solution, basically you need to exclude that class from proguard. If you're using xsbt-proguarg-pluing, you need to set this setting: val proguardFileFilter = (file: String) =\> { if (file.contains("lucene-core")) "!META-INF/MANIFEST.MF,!org/apache/lucene/index/BufferedDeletesStream\*.class" else { "!META-INF/MANIFEST.MF" } } // From ProguardPlugin.proguardSettings makeInJarFilter := proguardFileFilter Adam On Oct 26, 2012, at 6:09 PM, Ivan Brusic [ivan@brusic.com](mailto:ivan@brusic.com) wrote: > Elasticsearch shadows the Lucene library, so one option would be to not to include Lucene. > > -- > Ivan > > On Fri, Oct 26, 2012 at 3:24 AM, Adam Warski [adamwtw@gmail.com](mailto:adamwtw@gmail.com) wrote: > Hello, > > I'm trying to run ProGuard on one project that includes Elasticsearch. However the process fails with a DuplicateZipEntry exception: > > [error] {file:/Users/adamw/projects/...}.../\*:proguard: java.io.IOException: Can't write [/Users/adamw/projects/.../target/scala-2.9.1/....min.jar] (Can't read [/Users/adamw/.ivy2/cache/org.elasticsearch/elasticsearch/jars/elasticsearch-0.19.10.jar(;;;;!META-INF/MANIFEST.MF)] (Duplicate zip entry [elasticsearch-0.19.10.jar:org/apache/lucene/index/BufferedDeletesStream$1.class])) > > When looking at the BufferedDeletesStream class, indeed it says: > > // LUCENE MONITOR: We copied this class from Lucene, effectively overriding it with our implementation > // if it comes first in the classpath, allowing for faster apply deletes based on terms > > which is the cause of the issue. Not sure if it will be a problem for anyone else. Still looking for a solution using proguard configuration, just letting you know :). > > Adam > > -- > > -- -- Adam Warski [http://twitter.com/#!/adamwarski](http://twitter.com/#!/adamwarski) > **[SoftwareMill - proactively transforming your business with technology](https://softwaremill.com/)** > > Custom software solutions: web applications, backend systems & enterprise applications. Scala, Java, Big Data, Machine Learning, Blockchain. > **[Adam Warski](https://www.warski.org)** > > Sharing elegant solutions to everyday problems -- ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 3:07am UTC](https://discuss.elastic.co/t/elasticsearch-proguard/9478/4 "2017-07-06T03:07:04Z")