[improve][misc] use SLASHSTAR_STYLE for Java files

[tisonkun]

• doc-not-needed

!THIS IS A TRIVIAL CHANGE!

The effective change is 40f4fea.

Then run mvn initialize license:format to change:

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * ...
 */

to:

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * ...
 */

Motivation

When reformatting Java files, JAVADOC_STYLE cause the license header be treated as doc comments and it will be affected from:

/**
 * ...
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * ...
 */

to

/**
 * ...
 * with the License.  You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing,
 * ...
 */

This is annoying while we can replace JAVADOC_STYLE with SLASHSTAR_STYLE and it won't be an issue anymore.

Since I can simply rerun the command and even other patches should never touch these lines, this patch isn't in a hurry or suffers from conflict. But since we don't require all PR to be up-to-date before merging, we can experience a stage master failed on license:check.

[tisonkun]

ping @eolivelli @codelipenghui @lhotari @Jason918 :)

[tisonkun]

@merlimat what do you think of this proposal?

[github-actions]

The pr had no activity for 30 days, mark with Stale label.

[tisonkun]

Closed for a brand new patch.