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  1. JDK
  2. JDK-8175958

Duplicate module names allowed in exports_to_index, opens_to_index tables

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      Both assertions mentioned below, don't work with JDK 9 build 157.
      Realization allows to have the following tables:
      // exports_to_index
                 [1] {
                      { #9 0x0000 [] {#11; #11; #11; #11;} };
                  };

      // opens_to_index
                  [1] {
                      { #13 0x0000 [] {#11; #11;} };
                  };
      ----------------------
      exports_to_index
      The value of each exports_to_index item must be a valid index into the constant_pool table. The constant_pool entry at that index must be a CONSTANT_Module_info structure denoting a module whose code can access the types and members in this exported package.

      For each entry in the exports table, at most one entry in its exports_to_index table may specify a module of a given name. (Compile-time)
      ---------------------
      opens_to_index
      The value of each opens_to_index item must be a valid index into the constant_pool table. The constant_pool entry at that index must be a CONSTANT_Module_info structure denoting a module whose code can access the types and members in this opened package.

      For each entry in the opens table, at most one entry in its opens_to_index table may specify a module of a given name. (Compile-time)
      --------------------------
      Partial JCK build attached.

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              Assignee:
              alanb Alan Bateman
              Reporter:
              lkuskov Leonid Kuskov
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