https://docs.oracle.com/javase/jp/10/docs/api/com/sun/source/doctree/SummaryTree.html
SummaryTree (Java SE 10 & JDK 10 )
java sejdk
https://docs.oracle.com/en/java/javase/21/docs/api/jdk.compiler/com/sun/source/doctree/SummaryTree.html
SummaryTree (Java SE 21 & JDK 21)
declaration: module: jdk.compiler, package: com.sun.source.doctree, interface: SummaryTree
java sejdk