A DESCRIPTION OF THE PROBLEM :
java.lang.AssertionError


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile the code below

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Should compile I think. It's hard to tell if there's an error or not though.
ACTUAL -
java.lang.AssertionError
at jdk.compiler/com.sun.tools.javac.util.Assert.error(Assert.java:155)
at jdk.compiler/com.sun.tools.javac.util.Assert.check(Assert.java:46)
at jdk.compiler/com.sun.tools.javac.code.Scope$ScopeImpl.leave(Scope.java:386)
at jdk.compiler/com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1465)
at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1082)
at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:687)
at jdk.compiler/com.sun.tools.javac.comp.Attr.attribStat(Attr.java:761)
at jdk.compiler/com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:1253)
at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:912)
at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:687)
at jdk.compiler/com.sun.tools.javac.comp.Attr.attribStat(Attr.java:761)
at jdk.compiler/com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:5601)
at jdk.compiler/com.sun.tools.javac.comp.Attr.attribClass(Attr.java:5492)
at jdk.compiler/com.sun.tools.javac.comp.Attr.attribClass(Attr.java:5316)
at jdk.compiler/com.sun.tools.javac.comp.Attr.attrib(Attr.java:5255)
at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1317)
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)

--release
19
--enable-preview
/Users/jordanzimmerman/Downloads/test/Test.java


---------- BEGIN SOURCE ----------
package test;

import java.lang.reflect.*;
import java.util.List;

public class Test {
    public void test(List<Object> values, Class<?> collectionClass, Type componentType) {
        Class<?> primitiveClass = (componentType instanceof Class<?> clazz) && clazz.isPrimitive() ? clazz : null;
        Object tab = Array.newInstance(collectionClass, values.size());
        for (int i = 0; i < values.size(); ++i) {
            Object value = values.get(i);
            switch (value) {
                case null -> Array.set(tab, i, value);
                case Byte b when primitiveClass.equals(Byte.class) || primitiveClass.equals(byte.class) -> Array.setByte(tab, i, b);
                case Short s when primitiveClass.equals(Short.class) || primitiveClass.equals(short.class) -> Array.setShort(tab, i, s);
                case Character c when primitiveClass.equals(Character.class) || primitiveClass.equals(char.class) -> Array.setChar(tab, i, c);
                case Integer v when primitiveClass.equals(Integer.class) || primitiveClass.equals(int.class) -> Array.setInt(tab, i, v);
                case Long l when primitiveClass.equals(Long.class) || primitiveClass.equals(long.class) -> Array.setLong(tab, i, l);
                case Float f when primitiveClass.equals(Float.class) || primitiveClass.equals(float.class) -> Array.setFloat(tab, i, f);
                case Double d when primitiveClass.equals(Double.class) || primitiveClass.equals(double.class) -> Array.setDouble(tab, i, d);
                default -> throw new RuntimeException(); // TODO
            }
        }
    }
}

---------- END SOURCE ----------

FREQUENCY : always