The following file has an incorrect header format:

src/java.instrument/share/classes/java/lang/instrument/package-info.java

You can verify the header is correct with make/scripts/lic_check.sh (from JDK 10 WS) to make sure each file now passes.

The template is located at:
  make/templates/gpl-header
  make/templates/gpl-cp-header

The output of lic_check.sh is below:

### Checking copyright notice in the file: src/java.instrument/share/classes/java/lang/instrument/package-info.java
###
*** /tmp/source_file.15734 2019-03-08 13:40:58.897832210 +0900
--- ../templates/gpl-cp-header 2018-10-17 00:30:09.828954328 +0900
***************
*** 4,10 ****
  This code is free software; you can redistribute it and/or modify it
  under the terms of the GNU General Public License version 2 only, as
  published by the Free Software Foundation. Oracle designates this
! particular file as subject to the Classpath exception as provided
  by Oracle in the LICENSE file that accompanied this code.

  This code is distributed in the hope that it will be useful, but WITHOUT
--- 4,10 ----
  This code is free software; you can redistribute it and/or modify it
  under the terms of the GNU General Public License version 2 only, as
  published by the Free Software Foundation. Oracle designates this
! particular file as subject to the "Classpath" exception as provided
  by Oracle in the LICENSE file that accompanied this code.

  This code is distributed in the hope that it will be useful, but WITHOUT
ERROR: License header is not correct in...