[javac] /builddir/build/BUILD/UMLGraph-R5_7_2/src/main/java/org/umlgraph/doclet/UmlGraphDoc.java:22: error: package com.sun.tools.doclets.standard is not visible
[javac] import com.sun.tools.doclets.standard.Standard;
[javac] ^
[javac] (package com.sun.tools.doclets.standard is declared in module jdk.javadoc, which does not export it)
No, com.sun.tools.doclets.standard.Standard class is deprecated as of Java 9 and was removed in Java 11.
https://github.com/dspinellis/UMLGraph/blob/09576db5ae0ea63bfe30ef9fce88a513f9a8d843/src/main/java/org/umlgraph/doclet/UmlGraphDoc.java#L21
No, com.sun.tools.doclets.standard.Standard class is deprecated as of Java 9 and was removed in Java 11.
See: https://docs.oracle.com/javase/9/docs/api/com/sun/tools/doclets/standard/Standard.html