Switch statement with a pattern, constant and default label elements crash javac

ADDITIONAL SYSTEM INFORMATION :
OS: Ubuntu 20.04.1 LTS
JRE: OpenJDK 17 build 17-ea+27-2476
JVM parameters: --enable-preview --source 17

A DESCRIPTION OF THE PROBLEM :
Trying to compile the code containing a pattern, constant, and default label elements within one switch label leads to the javac compilation error.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Try to compile the code:

    public static void main(String[] args) {
        test(1);
    }

    static void test(Integer i) {
        switch (i) {
            case Integer o && o != null, 1, default:
                System.out.println("s1");
        }
    }


EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
It's expected to see clear compilation errors according to the spec draft: http://cr.openjdk.java.net/~gbierman/jep406/jep406-20210527/specs/patterns-switch-jls.html#jls-14.30.1

ACTUAL -
Compilation error:

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.jvm.Gen.handleSwitch(Gen.java:1310)
        at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitSwitch(Gen.java:1193)
        at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCSwitch.accept(JCTree.java:1294)
        at jdk.compiler/com.sun.tools.javac.jvm.Gen.genDef(Gen.java:610)
        at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:645)
        at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:631)
        at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStats(Gen.java:682)
        at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitBlock(Gen.java:1097)
        at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1091)
        at jdk.compiler/com.sun.tools.javac.jvm.Gen.genDef(Gen.java:610)
        at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:645)
        at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:631)
        at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStats(Gen.java:682)
        at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitBlock(Gen.java:1097)
        at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1091)
        at jdk.compiler/com.sun.tools.javac.jvm.Gen.genDef(Gen.java:610)
        at jdk.compiler/com.sun.tools.javac.jvm.Gen.genStat(Gen.java:645)
        at jdk.compiler/com.sun.tools.javac.jvm.Gen.genMethod(Gen.java:967)
        at jdk.compiler/com.sun.tools.javac.jvm.Gen.visitMethodDef(Gen.java:930)
        at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:921)
        at jdk.compiler/com.sun.tools.javac.jvm.Gen.genDef(Gen.java:610)
        at jdk.compiler/com.sun.tools.javac.jvm.Gen.genClass(Gen.java:2415)
        at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.genCode(JavaCompiler.java:737)
        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.api.JavacTaskImpl.lambda$doCall$0(JavacTaskImpl.java:104)
        at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.invocationHelper(JavacTaskImpl.java:152)
        at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.doCall(JavacTaskImpl.java:100)
        at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:94)
        at jdk.compiler/com.sun.tools.javac.launcher.Main.compile(Main.java:383)
        at jdk.compiler/com.sun.tools.javac.launcher.Main.run(Main.java:189)
        at jdk.compiler/com.sun.tools.javac.launcher.Main.main(Main.java:132)
error: compilation failed

---------- BEGIN SOURCE ----------
public class Switch {

    public static void main(String[] args) {
        test(1);
    }

    static void test(Integer i) {
        switch (i) {
            case Integer o && o != null, 1, default:
                System.out.println("s1");
        }
    }
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
'1' or 'default' removal fixes the issue.

FREQUENCY : always