RFR: 8260565: JFR: Fix copyright header in tests

[Markus Grönlund]

On Mon, 22 Mar 2021 18:26:08 GMT, Erik Gahlin <egahlin at openjdk.org> wrote:

> Hi,
> 
> Could I have a review of a fix that removes "Classpath" exception in the copyright header from the JFR tests. I had to update jdk.jfr.event.compilerTestDeoptimization.java because it relied on the line number of the file. A missing line ending was added at the end to some files as well. 
> 
> Testing: jdk/jdk/jfr + tier1,tier2
> 
> Thanks
> Erik

Marked as reviewed by mgronlun (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/3130