src/java.base/share/classes/java/util/zip/InflaterInputStream.java

*** 177,186 ****
--- 177,190 ----
       */
      public int available() throws IOException {
          ensureOpen();
          if (reachEOF) {
              return 0;
+         } else if (inf.finished()) {
+             // the end of the compressed data stream has been reached
+             reachEOF = true;
+             return 0;
          } else {
              return 1;
          }
      }