https://java.cunzaima.cn/jdk21/doc-zh/api/jdk.compiler/com/sun/source/tree/LambdaExpressionTree.html
LambdaExpressionTree (Java SE 21 & JDK 21)
declaration: module: jdk.compiler, package: com.sun.source.tree, interface: LambdaExpressionTree
java sejdk