[jira] [Created] (SOLR-9621) Remove several guava, apache commons calls in favor of java 8 alternatives

["Michael Braun (JIRA)" <ji...@apache.org>]

Michael Braun created SOLR-9621:
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             Summary: Remove several guava, apache commons calls in favor of java 8 alternatives
                 Key: SOLR-9621
                 URL: https://issues.apache.org/jira/browse/SOLR-9621
             Project: Solr
          Issue Type: Bug
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: Michael Braun
            Priority: Trivial


Now that Solr is against Java 8, we can take advantage of replacing some guava and apache commons calls with JDK standards. I'd like to start by replacing the following:

com.google.common.base.Supplier  -> java.util.function.Supplier
com.google.common.base.Predicate -> java.util.function.Predicate
com.google.common.base.Charsets -> java.nio.charset.StandardCharsets
org.apache.commons.codec.Charsets -> java.nio.charset.StandardCharsets
com.google.common.collect.Ordering -> java.util.Comparator

From com.google.common.base.Preconditions.checkNotNull - replace with java.util.Objects.requireNonNull





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