The changes were pushed to the records branch of the amber repo: http://hg.openjdk.java.net/amber/amber

Harold

On 10/25/2019 9:23 AM, David Holmes wrote:
On 25/10/2019 9:49 pm, Harold Seigel wrote:
Thanks David!

I should have mentioned that I had pushed Serguei's jvmti.xml and TestRecordAttr*.java changes earlier.

Pushed under what bug id to where? This JEP is still only a Candidate.

David

Harold

On 10/24/2019 8:40 PM, David Holmes wrote:
Hi Harold,

On 25/10/2019 3:50 am, Harold Seigel wrote:
Hi David,

Thanks for reviewing this!

Here's an updated webrev containing the below changes (and one change requested by Serguei).  Could you take a look?

http://cr.openjdk.java.net/~hseigel/records.review.rt.01/webrev/index.html

That incremental webrev looks fine.

However you didn't include Serguei's earlier change request

[Harold]>> I'll fix line 7789 in jvmti.xml before the change gets pushed.

so just wanted to remind you on that.

Thanks,
David

Please also see in-line comments.

On 10/23/2019 7:16 PM, David Holmes wrote:
Hi Vicente, (and Harold!)

On 19/10/2019 4:44 am, Vicente Romero wrote:
Hi,

Please review the hotspot runtime and serviceability code for JEP 359 (Records).

I've looked at all the code, though not in great detail i.e I have not validated the code changes against the proposed specification. Support for records seems mostly "mechanical" and the patterns you have used look appropriate. A couple of comments below.

src/hotspot/share/classfile/classFileParser.cpp

You added the check

3704         } else if (tag == vmSymbols::tag_record()) {

inside the block

3671       } else if (_major_version >= JAVA_11_VERSION) {

but I would have expected to see a new block created

       } else if (_major_version >= JAVA_14_VERSION) {

to hold this code.
Done.

Style nit:

3773     const unsigned int calculated_attr_length = parse_classfile_record_attribute(
3774                             cfs,
3775                             cp,
3776                             record_attribute_start,
3777                             CHECK);

The style in this file is align the args on the = character.
Done.

4928   if ((is_abstract && is_final && !major_gte_14) ||

As Lois mentioned already this change seems incorrect in general - is it related to sealed types perhaps? (Even then it should be tightened to actually check for a sealed type and not just allow arbitrary abstract+final classes.)
The '!major_gte_14' check was initially for sealed types, but is wrong.  It's already been removed.

---

src/hotspot/share/classfile/javaClasses.cpp

+   if (ik->should_be_initialized()) {
+     ik->initialize(CHECK_0);
+   }

Unless the call to should_be_initialized is an inline method (which it isn't) then we may as well just call initialize unconditionally as the first thing it will do is check should_be_initialized.
Done.

+     jio_snprintf(sig, sig_len, "()%s", type->as_C_string());

You should use the symbolic constants for the '(' and ')' characters.
Done.

---

src/hotspot/share/oops/instanceKlass.cpp

Nit:

3549       if (component) {

should test != NULL
Done.

---

 test/jdk/java/lang/instrument/RedefineRecordAttr

Nice reuse of the nestmate testing pattern :)

Yes, that nestmate test was very helpful!

Thanks, Harold


---

Thanks,
David

Thanks in advance for the feedback,
Vicente

PS, Thanks to Harold for the development


[1] http://cr.openjdk.java.net/~vromero/records.review/hotspot_runtime/webrev.00/

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