For debugging purposes, the functions write-to-system-log and format-to-system-log are especially useful on Android, because you can see their output in the Logcat in Android Studio. The functions send-message-to-java-host and format-to-java-host and the variable *to-java-host-stream* may also be useful, because they allow you to either invoke a Java handler or write into an android TextView.
LispWorks® User Guide and Reference Manual - 01 Dec 2021 19:30:21