Quote JAVA_HOME just in case it contains spaces.

Use java -XshowSettings:properties instead of custom code

PropertyPrint.java

@@ -1,18 +0,0 @@
-public class PropertyPrint {
-    public static void main(String[] args) {
-        if(null == args || 0 == args.length) {
-            args = new String[] { "java.version" };
-        }
-
-        for(int i=0; i<args.length; ++i) {
-            String property = args[i];
-
-            if(i > 0) {
-                System.out.print(' ');
-            }
-
-            System.out.print(System.getProperty(property));
-        }
-        System.out.println();
-    }
-}

script.sh

@@ -82,21 +82,11 @@ fi
 echo "Using Java from $JAVA_HOME"
 arch=$( arch )
 if [ "$arch" = "x86_64" ] ; then
-  echo "Okay, using x86-64 platform."
+  echo "Using ${arch} platform."
 elif [ "$arch" = "arm64" -o "$arch" = "aarch64" ] ; then
-  echo "Using aarm64 platform. Checking Java version..."
+  echo "Using ${arch} platform. Checking Java version..."
 
-  if [ -x "$JAVA_HOME/bin/javac" ] ; then
-    if [ ! -f PropertyPrint.class ] ; then
-      "$JAVA_HOME/bin/javac" -target 1.8 PropertyPrint.java
-    fi
-  else
-    echo "Cannot determine Java architecture because you do not have a JDK installed."
-
-    exit 1
-  fi
-
-  jarch=$( $JAVA_HOME/bin/java -classpath . PropertyPrint os.arch )
+  jarch=$( "${JAVA_HOME}/bin/java" -XshowSettings:properties -version 2>&1 | grep 'os.arch' | sed -e 's/.*=[ ]*//' )
 
   if [ "x86_64" != "$jarch" ] ; then
     echo "*"