Here's a variant where I try adding -modulesearchpath pointing at the jdk sources.
It fails with the error java/util/PriorityQueue.java:26: error: unnamed package is not allowed in named modules package java.util; ^ ... but that's nonsensical - this is not an unnamed package. That's the package statement right there! Seems like a BUG. #!/bin/bash set -eu JDKSRC=/home/martin/ws/jdk9-dev JDK=$JDKSRC/build/linux-x86_64-normal-server-release/images/jdk DIR=bug2 rm -rf $DIR cvs -Q -d ':pserver:anonymous:@gee.cs.oswego.edu/home/jsr166/jsr166' checkout -d $DIR jsr166/src/main cd $DIR find -name '*.java' | xargs perl -0777 -pi -e 's~sun\.(reflect|misc)~jdk.internal.$1~g' exec $JDK/bin/javadoc \ -d docs \ -Xdoclint:all \ -Xmodule:java.base \ -modulesourcepath "$JDKSRC/jdk/src/java.base/share/classes" \ -Xdocrootparent http://docs.oracle.com/javase/9/docs \ -tag 'jls:a:See <cite> The Java™ Language Specification</cite>:' \ -tag 'implSpec:a:Implementation Requirements:' \ -tag 'implNote:a:Implementation Note:' \ $(find java -name '*.java')