JavaDoc warnings (with Java > v14)

[lukas-vlcek]

There are some JavaDoc warnings when Java > v14 is used to build the project.

$ ./gradlew build

...

> Task :javadoc
/Users/lukas.vlcek/projects/prometheus-exporter/src/main/java/org/compuscene/metrics/prometheus/PrometheusSettings.java:35: warning: no comment
    public enum INDEX_FILTER_OPTIONS {
           ^
/Users/lukas.vlcek/projects/prometheus-exporter/src/main/java/org/compuscene/metrics/prometheus/PrometheusSettings.java:44: warning: no comment
        LENIENT_EXPAND_OPEN,
        ^
/Users/lukas.vlcek/projects/prometheus-exporter/src/main/java/org/compuscene/metrics/prometheus/PrometheusSettings.java:46: warning: no comment
        LENIENT_EXPAND_OPEN_CLOSED,
        ^
/Users/lukas.vlcek/projects/prometheus-exporter/src/main/java/org/compuscene/metrics/prometheus/PrometheusSettings.java:47: warning: no comment
        LENIENT_EXPAND_OPEN_CLOSED_HIDDEN
        ^
/Users/lukas.vlcek/projects/prometheus-exporter/src/main/java/org/compuscene/metrics/prometheus/PrometheusSettings.java:45: warning: no comment
        LENIENT_EXPAND_OPEN_HIDDEN,
        ^
/Users/lukas.vlcek/projects/prometheus-exporter/src/main/java/org/compuscene/metrics/prometheus/PrometheusSettings.java:36: warning: no comment
        STRICT_EXPAND_OPEN,
        ^
/Users/lukas.vlcek/projects/prometheus-exporter/src/main/java/org/compuscene/metrics/prometheus/PrometheusSettings.java:41: warning: no comment
        STRICT_EXPAND_OPEN_CLOSED,
        ^
/Users/lukas.vlcek/projects/prometheus-exporter/src/main/java/org/compuscene/metrics/prometheus/PrometheusSettings.java:42: warning: no comment
        STRICT_EXPAND_OPEN_CLOSED_HIDDEN,
        ^
/Users/lukas.vlcek/projects/prometheus-exporter/src/main/java/org/compuscene/metrics/prometheus/PrometheusSettings.java:38: warning: no comment
        STRICT_EXPAND_OPEN_FORBID_CLOSED,
        ^
/Users/lukas.vlcek/projects/prometheus-exporter/src/main/java/org/compuscene/metrics/prometheus/PrometheusSettings.java:40: warning: no comment
        STRICT_EXPAND_OPEN_FORBID_CLOSED_IGNORE_THROTTLED,
        ^
/Users/lukas.vlcek/projects/prometheus-exporter/src/main/java/org/compuscene/metrics/prometheus/PrometheusSettings.java:37: warning: no comment
        STRICT_EXPAND_OPEN_HIDDEN,
        ^
/Users/lukas.vlcek/projects/prometheus-exporter/src/main/java/org/compuscene/metrics/prometheus/PrometheusSettings.java:39: warning: no comment
        STRICT_EXPAND_OPEN_HIDDEN_FORBID_CLOSED,
        ^
/Users/lukas.vlcek/projects/prometheus-exporter/src/main/java/org/compuscene/metrics/prometheus/PrometheusSettings.java:43: warning: no comment
        STRICT_SINGLE_INDEX_NO_EXPAND_FORBID_CLOSED,
        ^
13 warnings