RFR: 8358769: Update --release 25 symbol information for JDK 25 build 27

[Joe Darcy]

On Wed, 18 Jun 2025 08:25:41 GMT, Nizar Benalla <nbenalla at openjdk.org> wrote:

>> src/jdk.compiler/share/data/symbols/java.base-P.sym.txt line 54:
>> 
>>> 52: -method name readln descriptor ()Ljava/lang/String;
>>> 53: 
>>> 54: class name java/io/Reader
>> 
>> Seeing this is surprising since JDK-8354724: "Methods in java.io.Reader to read all characters and all lines" which added these methods was add in JDK 25 build _26_ while, presumably many other changes from build 26 are already present in the symbol file.
>
> I used "build 27" in the JBS/PR title because I did not update the symbol changes for build 26, and 27 was the latest I could find on `https://jdk.java.net/25/ `
> I will update this with only changes that were in that build.

It is fine if the changeset contains information from multiple builds, but I'd expect many more symbol changes for build 26 as there were approx. 250 bug fixes in that build so I wanted to check what build was intended.

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PR Review Comment: https://git.openjdk.org/jdk/pull/25854#discussion_r2154948566