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  1. JBoss Enterprise Application Platform
  2. JBEAP-17292

[GSS](7.2.x) WELD-2592 - Jandex index retention on Weld

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      After deploying a huge amount of Java application in a JBoss EAP environment, it looks like a lot of Jandex index are retained in heap:

      Class Name                                              |   Objects | Shallow Heap | Retained Heap
      ---------------------------------------------------------------------------------------------------
      java.lang.Object[]                                      | 1,460,530 |     85.52 MB |  >= 622.78 MB
      java.util.ArrayList                                     |   939,474 |     21.50 MB |  >= 533.32 MB
      org.jboss.jandex.Index                                  |       435 |     13.59 KB |  >= 460.42 MB
      org.jboss.as.server.deployment.annotation.CompositeIndex|       224 |      3.50 KB |  >= 458.73 MB
      java.util.HashMap                                       | 1,143,351 |     52.34 MB |  >= 405.49 MB
      java.util.HashMap$Node[]                                |   897,613 |     89.82 MB |  >= 395.81 MB
      java.util.HashMap$Node                                  | 4,110,870 |    125.45 MB |  >= 317.86 MB
      org.jboss.jandex.ClassInfo                              |   491,618 |     22.50 MB |  >= 301.04 MB
      ---------------------------------------------------------------------------------------------------
      

      Test done with heap defined with 4Gb, started nicely with about ~150 applications and slowly increased it until about 200. Less heap then that leads into OOME.

      Heap: Size: 1.4 GB Classes: 49.5k Objects: 38.6m Class Loader: 1.8 + 900mb ready for GC.

      The same behavior is not seen in EAP 6.4.21 and all those 200 can be easily deployed within 1 GB heap size.

              rhn-support-tmiyargi Teresa Miyar Gil (Inactive)
              rhn-support-tmiyargi Teresa Miyar Gil (Inactive)
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