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solr/solr-7.7.2/licenses/xz-LICENSE-PD.txt

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+XZ for Java 1.0 (2011-10-22)
+
+http://tukaani.org/xz/java.html
+
+This Java implementation of XZ has been put into the public domain, 
+thus you can do whatever you want with it. All the files in the package 
+have been written by Lasse Collin, but some files are heavily based 
+on public domain code written by Igor Pavlov.