use non-deprecated methods if available

Author: scivision

+stdlib/ram_free.m

@@ -9,6 +9,10 @@
 
 b = java.lang.management.ManagementFactory.getOperatingSystemMXBean();
 
-freebytes = b.getFreePhysicalMemorySize(); % deprecated but Matlab R2023b doesn't have getFreeMemorySize()
+if stdlib.java_api() < 14
+  freebytes = b.getFreePhysicalMemorySize();
+else
+  freebytes = b.getFreeMemorySize();
+end
 
 end

+stdlib/ram_total.m

@@ -8,8 +8,12 @@
 
 b = java.lang.management.ManagementFactory.getOperatingSystemMXBean();
 
-bytes = b.getTotalPhysicalMemorySize();
-% deprecated but Matlab doesn't have Java 14 getPhysicalMemorySize() yet
+if stdlib.java_api() < 14
+  bytes = b.getTotalPhysicalMemorySize();
+else
+  bytes = b.getTotalMemorySize();
+end
+
 % https://docs.oracle.com/en/java/javase/21/docs/api/jdk.management/com/sun/management/OperatingSystemMXBean.html#getTotalMemorySize()
 
 end