# Prepare for Azure Management Libraries for Java 1.0.0-beta5# Steps to migrate code that uses Azure Management Libraries for Java from beta 4 to beta 5 … > If this note missed any breaking changes, please open a pull request. # `Create()` defaults to Managed Disks# In `VirtualMachine, VirtualMachineScaleSet` and `VirtualMachineScaleSetVM` the OS and data disks getters and withers **default** to managed disks. The withers and getters for storage account based (unmanaged) OS and data disks are **renamed** to include the term `unmanaged`. ## `Create()` creates unmanaged disks on explicit requests## Starting in 1.0.0-beta5, if you like to continue to use the storage account based (unmanaged) operating system and data disks, you may use `withUnmanagedDisks()` in the `define() ... create()` method chain. The following sample statement creates a virtual machine with an unmanaged operating system disk: azure.virtualMachines().define("myLinuxVM") .withRegion(Region.US_EAST) .withNewResourceGroup(rgName) .withNewPrimaryNetwork("10.0.0.0/28") .withPrimaryPrivateIpAddressDynamic() .withNewPrimaryPublicIpAddress("mylinuxvmdns") .withPopularLinuxImage(KnownLinuxVirtualMachineImage.UBUNTU_SERVER_16_04_LTS) .withRootUsername("tirekicker") .withSsh(sshKey) // Unmanaged disks - uses Storage Account .withUnmanagedDisks() .withSize(VirtualMachineSizeTypes.STANDARD_D3_V2) .create(); For additional sample code, please see Manage Virtual Machine With Unmanaged Disks ready-to-run sample. ## Converting virtual machines with storage account based disks to use managed disks ## You can convert a virtual machine with unmanaged disks (Storage Account based) to managed disks with a single reboot. PagedList virtualMachines = azure.virtualMachines().list(); for (VirtualMachine virtualMachine : virtualMachines) { if (!virtualMachine.isManagedDiskEnabled()) { virtualMachine.deallocate(); virtualMachine.convertToManaged(); } } # Change Method Names #

From	To	Ref
`VirtualMachineScaleSetVM.isOsBasedOnPlatformImage()`	`VirtualMachineScaleSetVM.isOSBasedOnPlatformImage()`	#1409
`VirtualMachineScaleSetVM.getPlatformImage()`	`VirtualMachineScaleSetVM.getOSPlatformImage()`	#1409
`VirtualMachineScaleSetVM.customImageVhdUri()`	`VirtualMachineScaleSetVM.storedImageUnmanagedVhdUri()`	#1409
`VirtualMachineScaleSetVM.osDiskVhdUri()`	`VirtualMachineScaleSetVM.osUnmanagedDiskVhdUri()`	#1409
`VirtualMachine.withOsDisk()`	`VirtualMachine.withSpecializedOsUnmanagedDisk()`	#1409
`VirtualMachine.withOsDiskCaching()`	`VirtualMachine.withOSDiskCaching()`	#1409
`VirtualMachine.withOsDiskSizeInGb()`	`VirtualMachine.withOSDiskSizeInGB()`	#1409
`VirtualMachine.osDiskVhdUri()`	`VirtualMachine.osUnmanagedDiskVhdUri()`	#1409
`VirtualMachine.getPlatformImage()`	`VirtualMachine.getOSPlatformImage()`	#1409
`VirtualMachine.defineNewDataDisk()`	`VirtualMachine.defineUnmanagedDataDisk()`	#1409
`VirtualMachine.withNewDataDisk()`	`VirtualMachine.withNewUnmanagedDataDisk()`	#1409
`VirtualMachine.withExistingDataDisk()`	`VirtualMachine.withExistingUnmanagedDataDisk()`	#1409
`VirtualMachine.withoutDataDisk()`	`VirtualMachine.withoutUnmanagedDataDisk()`	#1409
`VirtualMachine.updateDataDisk()`	`VirtualMachine.updateUnmanagedDataDisk()`	#1409
`VirtualMachine.dataDisks()`	`VirtualMachine.unmanagedDataDisks()`	#1409
`Subscriptions.getByName()`	`Subscriptions..getById()`	#1396

# Change Receiving Variable Type #

From	To	For Method	Ref
`Observable<Void>`	`Completable`	`SupportDeletingByName.deleteByNameAsync()`	#1388
`Observable<Void>`	`Completable`	`SupportDeletingById.deleteByIdAsync()`	#1388
`Observable<Void>`	`Completable`	`SupportDeletingByGroup.deleteByGroupAsync()`	#1388
`List<DataDiskImage>`	`Map<Integer, DataDiskImage>`	`VirtualMachineImage.dataDiskImages()`	#1409
`List<ResourceT>`	`Map<String, ResourceT>`	`{ResourceCollection}.create(List<Creatable<ResourceT>>)` `e.g. VirtualMachines.create(List<Creatable<VirtualMachine>>)`	#1381

# Change visibility #

Name	Visibility	Note	Ref
`setInner(T)`	`internal`	we already documented setInner as "internal use only", making it really internal	#1381