ADDITIONAL SYSTEM INFORMATION :
jdk 17.0.5, lombok 1.8.24

A DESCRIPTION OF THE PROBLEM :
While compile some new code I wrote, I encountered this error. I was then able to create a simple test class to reproduce the problem.
The problem occurs when creating a record with a property of a generic class with a class generated by lombok as type parameter.

However, the manually delomboked test class compiles without problems.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Download lombok from https://projectlombok.org/download and compile with:
1. javac Test.java -cp lombok.jar

To delombok the class:
java -jar lombok.jar delombok -p Test.java

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Compiler succeeds
ACTUAL -
java.lang.AssertionError: typeSig ERROR
at jdk.compiler/com.sun.tools.javac.code.Types$SignatureGenerator.assembleSig(Types.java:5166)
at jdk.compiler/com.sun.tools.javac.jvm.PoolWriter$SharedSignatureGenerator.assembleSig(PoolWriter.java:298)
at jdk.compiler/com.sun.tools.javac.code.Types$SignatureGenerator.assembleSig(Types.java:5226)
at jdk.compiler/com.sun.tools.javac.code.Types$SignatureGenerator.assembleClassSig(Types.java:5202)
at jdk.compiler/com.sun.tools.javac.code.Types$SignatureGenerator.assembleSig(Types.java:5112)
at jdk.compiler/com.sun.tools.javac.jvm.PoolWriter$SharedSignatureGenerator.assembleSig(PoolWriter.java:298)
at jdk.compiler/com.sun.tools.javac.jvm.PoolWriter.typeSig(PoolWriter.java:492)
at jdk.compiler/com.sun.tools.javac.jvm.PoolWriter.putSignature(PoolWriter.java:157)
at jdk.compiler/com.sun.tools.javac.jvm.ClassWriter.writeMemberAttrs(ClassWriter.java:370)
at jdk.compiler/com.sun.tools.javac.jvm.ClassWriter.writeRecordAttribute(ClassWriter.java:856)
at jdk.compiler/com.sun.tools.javac.jvm.ClassWriter.writeClassFile(ClassWriter.java:1651)
at jdk.compiler/com.sun.tools.javac.jvm.ClassWriter.writeClass(ClassWriter.java:1505)
at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.genCode(JavaCompiler.java:738)
at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1617)
at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1585)
at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:946)
at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:317)
at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:176)
at jdk.compiler/com.sun.tools.javac.Main.compile(Main.java:64)
at jdk.compiler/com.sun.tools.javac.Main.main(Main.java:50)

---------- BEGIN SOURCE ----------
import java.util.List;

import lombok.Builder;

public class Test {
@Builder
private static class Data {
}

private record Builders(List<Data.DataBuilder> builders) {
}
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
not using lombok

FREQUENCY : always