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  1. JDK
  2. JDK-8231895

Avoid String allocations in JVM_FindLoadedClass

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      b18

      Description

      JVM_FindLoadedClass takes the given jstring class name and calls internalize_classname - which returns a new java String after converting '.' to '/' in the original one. We then turn that string into an UTF-8 string. This means we're allocating a String object on heap, which we then instantly throw away, and unless I'm missing something we could just get rid of this intermediary allocation.

      internalize_classname is only used in this one place, so it should be inlined and simplified to remove a String allocation by doing the conversion to utf-8 first, then update that in place.

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            • Assignee:
              redestad Claes Redestad
              Reporter:
              redestad Claes Redestad
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