doclint warnings in jdk.compiler module

open/src/jdk.compiler/share/classes/com/sun/source/util/DocTrees.java:237: warning: no @param for tree
    public abstract String getCharacters(EntityTree tree);
                           ^
open/src/jdk.compiler/share/classes/com/sun/source/util/DocTreeFactory.java:281: warning: no @param for isInline
    default ReturnTree newReturnTree(boolean isInline, List<? extends DocTree> description) {
                       ^
2 warnings