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Unnamed pattern cannot be parsed #1037

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@ekpdt

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@ekpdt
$ cat > A.java <<'EOF'
public sealed interface A {
  record AA(Long a) implements A {}

  static Long mySwitch(A a) {
    switch (a) {
      case AA(_) -> {
        return 1L;
      }
    }
  }
}
EOF

$ java -jar google-java-format-1.19.2-all-deps.jar -r A.java
A.java:6:13: error: expected token: '_'; generated ) instead

$ javac A.java --enable-preview --release 21 2> /dev/null && echo ok
ok

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