A few fields in ConstantDescs have spurious right braces in the API documentation, including BSM_EXPLICIT_CAST,
https://docs.oracle.com/en/java/javase/20/docs/api/java.base/java/lang/constant/ConstantDescs.html#BSM_EXPLICIT_CAST
and the newly added BSM_CLASS_DATA and BSM_CLASS_DATA_AT
https://download.java.net/java/early_access/jdk21/docs/api/java.base/java/lang/constant/ConstantDescs.html#BSM_CLASS_DATA