Storage - Files Data Lake Samples Issue

[faynef]

Section link1, link2, link3, link4:

Reason:
java.lang.NullPointerException: Cannot invoke "String.toLowerCase(java.util.Locale)" because the return value of "com.azure.storage.file.datalake.models.AccessControlType.toString()" is null.

Suggestion:
Update code to

PathAccessControlEntry ownerEntry = new PathAccessControlEntry()
	              .setAccessControlType(AccessControlType.USER)
	              .setPermissions(new RolePermissions().setReadPermission(true).setWritePermission(true).setExecutePermission(true));

PathAccessControlEntry groupEntry = new PathAccessControlEntry()
	      .setAccessControlType(AccessControlType.GROUP)
	      .setPermissions(new RolePermissions().setReadPermission(true).setWritePermission(true));

PathAccessControlEntry otherEntry = new PathAccessControlEntry()
	      .setAccessControlType(AccessControlType.OTHER)
	      .setPermissions(new RolePermissions());

List<PathAccessControlEntry> pathAccessControlEntries = new ArrayList<>();
pathAccessControlEntries.add(ownerEntry);
pathAccessControlEntries.add(groupEntry);
pathAccessControlEntries.add(otherEntry);

Section link1, link2:

Reason:
java.lang.NullPointerException: Cannot invoke "String.toLowerCase(java.util.Locale)" because the return value of "com.azure.storage.file.datalake.models.AccessControlType.toString()" is null.

Suggestion:
Update code to

PathRemoveAccessControlEntry ownerEntry = new PathRemoveAccessControlEntry()
	                .setAccessControlType(AccessControlType.USER)
	                .setDefaultScope(true);
	
PathRemoveAccessControlEntry groupEntry = new PathRemoveAccessControlEntry()
	      .setAccessControlType(AccessControlType.GROUP)
	      .setDefaultScope(true);

PathRemoveAccessControlEntry otherEntry = new PathRemoveAccessControlEntry()
	      .setAccessControlType(AccessControlType.OTHER)
	      .setDefaultScope(true);
List<PathRemoveAccessControlEntry> pathAccessControlEntries = new ArrayList<>();
pathAccessControlEntries.add(ownerEntry);
pathAccessControlEntries.add(groupEntry);
pathAccessControlEntries.add(otherEntry);

@sandeep-sen , @joshfree , @rohit-ganguly , @kasobol-msft and @alzimmermsft to notification.