--- old/src/hotspot/os/linux/gc/z/zMountPoint_linux.cpp	2020-06-17 15:03:20.162784762 +0200
+++ new/src/hotspot/os/linux/gc/z/zMountPoint_linux.cpp	2020-06-17 15:03:20.018782339 +0200
@@ -83,7 +83,7 @@
   while (getline(&line, &length, fd) != -1) {
     char* const mountpoint = get_mountpoint(line, filesystem);
     if (mountpoint != NULL) {
-      mountpoints->add(mountpoint);
+      mountpoints->append(mountpoint);
     }
   }
 
@@ -129,10 +129,10 @@
 
   get_mountpoints(filesystem, &mountpoints);
 
-  if (mountpoints.size() == 0) {
+  if (mountpoints.length() == 0) {
     // No mount point found
     log_error_p(gc)("Failed to find an accessible %s filesystem", filesystem);
-  } else if (mountpoints.size() == 1) {
+  } else if (mountpoints.length() == 1) {
     // One mount point found
     path = strdup(mountpoints.at(0));
   } else {