com.lispworks.LispCalls is part of the LispWorks distribution. For Android it is part of the
7-1-0-0/etc/lispworks.jar file. See the Android interface for details. On other platforms it is defined in the JAR file
lispcalls.jar which is part of the LispWorks distribution in the
etc directory, that is
(lispworks-file "etc/lispcalls.jar"). This JAR file needs to be on the classpath (for example by the keyword argument
:java-class-path to init-java-interface).
LispWorks User Guide and Reference Manual - 20 Sep 2017