src/java.base/share/classes/jdk/internal/classfile/impl/ClassPrinterImpl.java

@@ -899,10 +899,13 @@
                      nodes.add(list("nest members", "member", nma.nestMembers().stream()
                              .map(mp -> mp.name().stringValue())));
                  case PermittedSubclassesAttribute psa ->
                      nodes.add(list("permitted subclasses", "subclass", psa.permittedSubclasses().stream()
                              .map(e -> e.name().stringValue())));
+                 case PreloadAttribute pa ->
+                     nodes.add(list("preload classes", "class", pa.preloads().stream()
+                             .map(e -> e.name().stringValue())));
                  default -> {}
              }
              if (verbosity == Verbosity.TRACE_ALL) switch (attr) {
                  case EnclosingMethodAttribute ema ->
                      nodes.add(map("enclosing method",