The build.tools.depend.Depend build tool needs to be updated to handle record components in API signatures.

For example:

$ cat open/src/java.base/share/classes/java/util/Pair.java
package java.util;

/**
 * A Pair.
 */
public record Pair<S,T> (S first, T second) { }

chhegar$ make jdk-image
Building target 'jdk-image' in configuration 'macosx-x64'
Updating support/src.zip
An exception has occurred in the compiler (16-internal). Please file a bug against the Java compiler via the Java bug reporting page (http://bugreport.java.com) after checking the Bug Database (http://bugs.java.com) for duplicates. Include your program, the following diagnostic, and the parameters passed to the Java compiler in your report. Thank you.
com.sun.tools.javac.util.ClientCodeException: java.lang.UnsupportedOperationException: Not supported.
at jdk.compiler.interim/com.sun.tools.javac.api.ClientCodeWrapper$WrappedTaskListener.finished(ClientCodeWrapper.java:868)
at jdk.compiler.interim/com.sun.tools.javac.api.MultiTaskListener.finished(MultiTaskListener.java:132)
at jdk.compiler.interim/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1421)
at jdk.compiler.interim/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1378)
at jdk.compiler.interim/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:973)
at jdk.compiler.interim/com.sun.tools.javac.main.Main.compile(Main.java:317)
at jdk.compiler.interim/com.sun.tools.sjavac.comp.SjavacImpl.compile(SjavacImpl.java:117)
at jdk.compiler.interim/com.sun.tools.sjavac.comp.PooledSjavac.lambda$compile$0(PooledSjavac.java:63)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: java.lang.UnsupportedOperationException: Not supported.
at build.tools.depend.Depend$APIVisitor.visitUnknown(Depend.java:291)
at build.tools.depend.Depend$APIVisitor.visitUnknown(Depend.java:167)
at java.compiler.interim/javax.lang.model.element.ElementVisitor.visitRecordComponent(ElementVisitor.java:225)
at jdk.compiler.interim/com.sun.tools.javac.code.Symbol$RecordComponent.accept(Symbol.java:1825)
at build.tools.depend.Depend$APIVisitor.visit(Depend.java:229)
at build.tools.depend.Depend$APIVisitor.lambda$visit$0(Depend.java:181)
at java.base/java.lang.Iterable.forEach(Iterable.java:75)
at build.tools.depend.Depend$APIVisitor.visit(Depend.java:181)
at build.tools.depend.Depend$APIVisitor.visitType(Depend.java:257)
at build.tools.depend.Depend$APIVisitor.visitType(Depend.java:167)
at jdk.compiler.interim/com.sun.tools.javac.code.Symbol$ClassSymbol.accept(Symbol.java:1560)
at build.tools.depend.Depend$APIVisitor.visit(Depend.java:229)
at build.tools.depend.Depend$APIVisitor.visit(Depend.java:234)
at build.tools.depend.Depend$1.finished(Depend.java:131)
at jdk.compiler.interim/com.sun.tools.javac.api.ClientCodeWrapper$WrappedTaskListener.finished(ClientCodeWrapper.java:864)
... 11 more
printing javac parameters to: /Users/chhegar/git/sandbox/open/make/javac.20201120_144349.args
CompileJavaModules.gmk:609: recipe for target '/Users/chhegar/git/sandbox/build/macosx-x64/jdk/modules/java.base/_the.java.base_batch' failed
make[3]: *** [/Users/chhegar/git/sandbox//build/macosx-x64/jdk/modules/java.base/_the.java.base_batch] Error 4
make/Main.gmk:193: recipe for target 'java.base-java' failed
make[2]: *** [java.base-java] Error 2

ERROR: Build failed for target 'jdk-image' in configuration 'macosx-x64' (exit code 2)
Stopping sjavac server

=== Output from failing command(s) repeated here ===
* For target jdk_modules_java.base__the.java.base_batch:
An exception has occurred in the compiler (16-internal). Please file a bug against the Java compiler via the Java bug reporting page (http://bugreport.java.com) after checking the Bug Database (http://bugs.java.com) for duplicates. Include your program, the following diagnostic, and the parameters passed to the Java compiler in your report. Thank you.
com.sun.tools.javac.util.ClientCodeException: java.lang.UnsupportedOperationException: Not supported.
at jdk.compiler.interim/com.sun.tools.javac.api.ClientCodeWrapper$WrappedTaskListener.finished(ClientCodeWrapper.java:868)
at jdk.compiler.interim/com.sun.tools.javac.api.MultiTaskListener.finished(MultiTaskListener.java:132)
at jdk.compiler.interim/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1421)
at jdk.compiler.interim/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1378)
at jdk.compiler.interim/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:973)
at jdk.compiler.interim/com.sun.tools.javac.main.Main.compile(Main.java:317)
at jdk.compiler.interim/com.sun.tools.sjavac.comp.SjavacImpl.compile(SjavacImpl.java:117)
at jdk.compiler.interim/com.sun.tools.sjavac.comp.PooledSjavac.lambda$compile$0(PooledSjavac.java:63)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
at java.base/java.lang.Thread.run(Thread.java:832)
Caused by: java.lang.UnsupportedOperationException: Not supported.
   ... (rest of output omitted)

* All command lines available in /Users/chhegar/git/sandbox/build/macosx-x64/make-support/failure-logs.
=== End of repeated output ===

=== Make failed targets repeated here ===
CompileJavaModules.gmk:609: recipe for target '/Users/chhegar/git/sandbox/build/macosx-x64/jdk/modules/java.base/_the.java.base_batch' failed
make/Main.gmk:193: recipe for target 'java.base-java' failed
=== End of repeated output ===

Hint: Try searching the build log for the name of the first failed target.
Hint: See doc/building.html#troubleshooting for assistance.

make[1]: *** [main] Error 2
make: *** [jdk-image] Error 2