OpenTK Deprecation (#5755)

Context: #5647 .NET 6 will not include or redistribute `OpenTK-1.0.dll`. Customers using OpenTK should use the [Xamarin.Legacy.OpenTK NuGet package][0]: <PackageReference Include="Xamarin.Legacy.OpenTK" Version="0.0.1-alpha" /> The version number will change in the future. In order to give customers who are using `OpenTK-1.0.dll` a chance to migrate we are deprecating it first, and will raise an `XA4313` warning if we detect that OpenTK-1.0 is in the `@(Referece)` item group: warning XA4313: The built-in 'OpenTK-1.0' reference has been deprecated. Remove the 'OpenTK-1.0' reference from your project and add the 'Xamarin.Legacy.OpenTK' NuGet package instead. The vast majority of changes in this commit are to stop generating the OpenTK java types into `mono-android.jar`. From this point on `OpenTK` will be treated like all other Android Class Libraries, and the generated Java code will be written into the `$(IntermediateOutputPath)\lp` directory along with all the other assembly references. [0]: https://www.nuget.org/packages/Xamarin.Legacy.OpenTK
dotnet · Apr 26, 2021 · f909adb · f909adb
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diff --git a/Documentation/guides/messages/README.md b/Documentation/guides/messages/README.md
@@ -181,6 +181,7 @@ or 'Help->Report a Problem' in Visual Studio for Mac.
 + [XA4310](xa4310.md): \`$(AndroidSigningKeyStore)\` file \`{keystore}\` could not be found.
 + XA4311: The application won't contain the paired Wear package because the Wear application package APK is not created yet. If building on the command line, be sure to build the "SignAndroidPackage" target.
 + [XA4312](xa4312.md): Referencing an Android Wear application project from an Android application project is deprecated.
++ [XA4313](xa4313.md): Framework assembly has been deprecated.
 
 ## XA5xxx: GCC and toolchain
 

diff --git a/Documentation/guides/messages/xa4313.md b/Documentation/guides/messages/xa4313.md
@@ -0,0 +1,20 @@
+---
+title: Xamarin.Android error/warning XA4313
+description: XA4313 error/warning code
+ms.date: 03/19/2021
+---
+# Xamarin.Android error/warning XA4313
+
+The specified Framework assembly has been deprecated.
+You need an upgrade to use the specified NuGet Package.
+
+For example, to upgrade `OpenTK-1.0` remove
+
+    '<Reference Include="OpenTK-1.0" />'
+
+from your csproj then add
+
+    '<PackageReference Include="Xamarin.Legacy.OpenTK" Version="1.0.0" />'
+
+to your project to upgrade.
+
diff --git a/build-tools/scripts/BuildEverything.mk b/build-tools/scripts/BuildEverything.mk
@@ -1,4 +1,4 @@
-.PHONY: leeroy jenkins leeroy-all opentk-jcw
+.PHONY: leeroy jenkins leeroy-all
 .PHONY: create-vsix
 
 #
@@ -24,15 +24,8 @@ ifneq ("$(wildcard $(topdir)/external/monodroid/Makefile)","")
 endif
 	$(MAKE) leeroy $(ZIP_OUTPUT)
 
-leeroy: leeroy-all framework-assemblies opentk-jcw
+leeroy: leeroy-all framework-assemblies
 
 leeroy-all:
 	$(call MSBUILD_BINLOG,leeroy-all,$(_SLN_BUILD)) /restore $(SOLUTION) /p:Configuration=$(CONFIGURATION) $(_MSBUILD_ARGS)
 	$(call MSBUILD_BINLOG,leeroy-all,$(_SLN_BUILD)) /restore tools/xabuild/xabuild.csproj /p:Configuration=$(CONFIGURATION) $(_MSBUILD_ARGS)
-
-opentk-jcw:
-	$(foreach api_level, $(API_LEVELS), \
-		touch bin/$(CONFIGURATION)/lib/xamarin.android/xbuild-frameworks/MonoAndroid/*/OpenTK-1.0.dll; \
-		$(call MSBUILD_BINLOG,OpenTK-JCW,$(_SLN_BUILD)) $(MSBUILD_FLAGS) src/OpenTK-1.0/OpenTK.csproj \
-			/t:GenerateJavaCallableWrappers /p:Configuration=$(CONFIGURATION) $(_MSBUILD_ARGS) \
-			/p:AndroidApiLevel=$(api_level) /p:AndroidPlatformId=$(word $(api_level), $(ALL_PLATFORM_IDS)) /p:AndroidFrameworkVersion=$(word $(api_level), $(ALL_FRAMEWORKS)) || exit 1; )
diff --git a/src/OpenTK-1.0/OpenTK.csproj b/src/OpenTK-1.0/OpenTK.csproj
@@ -540,10 +540,5 @@
   <Import Project="..\..\build-tools\scripts\MonoAndroidFramework.targets" />
   <PropertyGroup>
     <DefineConstants>MONODROID;MINIMAL;MOBILE;OPENTK_1;OPENTK_1_0</DefineConstants>
-    <JavacSourceVersion Condition=" '$(JavacSourceVersion)' == '' And '$(AndroidApiLevel)' != '' And $(AndroidApiLevel) &gt; 23 ">1.8</JavacSourceVersion>
-    <JavacSourceVersion Condition=" '$(JavacSourceVersion)' == '' ">1.6</JavacSourceVersion>
-    <JavaCallableWrapperAbsAssembly>$(JavaCallableWrapperOutputPathAbs)$(AssemblyName).dll</JavaCallableWrapperAbsAssembly>
-    <JavaCallableWrapperAbsAssembly Condition="!Exists('$(JavaCallableWrapperAbsAssembly)')">$(MSBuildProjectDirectory)\$(IntermediateOutputPath)\$(AssemblyName).dll</JavaCallableWrapperAbsAssembly>
   </PropertyGroup>
-  <Import Project="..\..\build-tools\scripts\JavaCallableWrappers.targets" />
 </Project>
diff --git a/src/Xamarin.Android.Build.Tasks/Linker/Mobile.Tuner/MobileProfile.cs b/src/Xamarin.Android.Build.Tasks/Linker/Mobile.Tuner/MobileProfile.cs
@@ -53,8 +53,6 @@ public abstract class MobileProfile : Profile {
 			"Mono.Data.Sqlite",
 			"Mono.Posix",
 			"Mono.Security",
-			"OpenTK",
-			"OpenTK-1.0",
 			// Facades assemblies (PCL)
 			"Microsoft.Win32.Primitives",
 			"Microsoft.Win32.Registry.AccessControl",

diff --git a/src/Xamarin.Android.Build.Tasks/Properties/Resources.resx b/src/Xamarin.Android.Build.Tasks/Properties/Resources.resx
@@ -723,6 +723,15 @@ The following are literal names and should not be translated: ABI, 'libs/armeabi
     <value>Referencing the Android Wear application project '{0}' from an Android application project is deprecated and will no longer be supported in a future version of Xamarin.Android. Remove the Android Wear application project reference from the Android application project and distribute the Wear application as a standalone application instead.</value>
     <comment>The following are literal names and should not be translated: Android Wear, Android, Wear.
 {0} - The referenced Android Wear project.</comment>
+  </data>
+  <data name="XA4313" xml:space="preserve">
+    <value>The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</value>
+  <comment>The following are literal names and should not be translated:
+{0} - The Assembly name which is deprecated
+{1} - A Nuget package name.
+  </comment>
   </data>
   <data name="XA5101" xml:space="preserve">
     <value>Missing Android NDK toolchains directory '{0}'. Please install the Android NDK.</value>

diff --git a/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.cs.xlf b/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.cs.xlf
@@ -71,6 +71,18 @@ The following are literal names and should not be translated: ABI, 'libs/armeabi
         <note>The following are literal names and should not be translated: ABI, NuGet
 {0} - The native library file path
 {1} - Either the name of the NuGet package or a path to the native library</note>
+      </trans-unit>
+      <trans-unit id="XA4313">
+        <source>The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</source>
+        <target state="new">The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</target>
+        <note>The following are literal names and should not be translated:
+{0} - The Assembly name which is deprecated
+{1} - A Nuget package name.
+  </note>
       </trans-unit>
       <trans-unit id="XA_Manifest_AutoGenerated_Header">
         <source>

diff --git a/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.de.xlf b/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.de.xlf
@@ -71,6 +71,18 @@ The following are literal names and should not be translated: ABI, 'libs/armeabi
         <note>The following are literal names and should not be translated: ABI, NuGet
 {0} - The native library file path
 {1} - Either the name of the NuGet package or a path to the native library</note>
+      </trans-unit>
+      <trans-unit id="XA4313">
+        <source>The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</source>
+        <target state="new">The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</target>
+        <note>The following are literal names and should not be translated:
+{0} - The Assembly name which is deprecated
+{1} - A Nuget package name.
+  </note>
       </trans-unit>
       <trans-unit id="XA_Manifest_AutoGenerated_Header">
         <source>

diff --git a/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.es.xlf b/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.es.xlf
@@ -71,6 +71,18 @@ The following are literal names and should not be translated: ABI, 'libs/armeabi
         <note>The following are literal names and should not be translated: ABI, NuGet
 {0} - The native library file path
 {1} - Either the name of the NuGet package or a path to the native library</note>
+      </trans-unit>
+      <trans-unit id="XA4313">
+        <source>The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</source>
+        <target state="new">The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</target>
+        <note>The following are literal names and should not be translated:
+{0} - The Assembly name which is deprecated
+{1} - A Nuget package name.
+  </note>
       </trans-unit>
       <trans-unit id="XA_Manifest_AutoGenerated_Header">
         <source>

diff --git a/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.fr.xlf b/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.fr.xlf
@@ -71,6 +71,18 @@ The following are literal names and should not be translated: ABI, 'libs/armeabi
         <note>The following are literal names and should not be translated: ABI, NuGet
 {0} - The native library file path
 {1} - Either the name of the NuGet package or a path to the native library</note>
+      </trans-unit>
+      <trans-unit id="XA4313">
+        <source>The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</source>
+        <target state="new">The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</target>
+        <note>The following are literal names and should not be translated:
+{0} - The Assembly name which is deprecated
+{1} - A Nuget package name.
+  </note>
       </trans-unit>
       <trans-unit id="XA_Manifest_AutoGenerated_Header">
         <source>

diff --git a/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.it.xlf b/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.it.xlf
@@ -71,6 +71,18 @@ The following are literal names and should not be translated: ABI, 'libs/armeabi
         <note>The following are literal names and should not be translated: ABI, NuGet
 {0} - The native library file path
 {1} - Either the name of the NuGet package or a path to the native library</note>
+      </trans-unit>
+      <trans-unit id="XA4313">
+        <source>The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</source>
+        <target state="new">The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</target>
+        <note>The following are literal names and should not be translated:
+{0} - The Assembly name which is deprecated
+{1} - A Nuget package name.
+  </note>
       </trans-unit>
       <trans-unit id="XA_Manifest_AutoGenerated_Header">
         <source>

diff --git a/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.ja.xlf b/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.ja.xlf
@@ -71,6 +71,18 @@ The following are literal names and should not be translated: ABI, 'libs/armeabi
         <note>The following are literal names and should not be translated: ABI, NuGet
 {0} - The native library file path
 {1} - Either the name of the NuGet package or a path to the native library</note>
+      </trans-unit>
+      <trans-unit id="XA4313">
+        <source>The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</source>
+        <target state="new">The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</target>
+        <note>The following are literal names and should not be translated:
+{0} - The Assembly name which is deprecated
+{1} - A Nuget package name.
+  </note>
       </trans-unit>
       <trans-unit id="XA_Manifest_AutoGenerated_Header">
         <source>

diff --git a/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.ko.xlf b/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.ko.xlf
@@ -71,6 +71,18 @@ The following are literal names and should not be translated: ABI, 'libs/armeabi
         <note>The following are literal names and should not be translated: ABI, NuGet
 {0} - The native library file path
 {1} - Either the name of the NuGet package or a path to the native library</note>
+      </trans-unit>
+      <trans-unit id="XA4313">
+        <source>The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</source>
+        <target state="new">The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</target>
+        <note>The following are literal names and should not be translated:
+{0} - The Assembly name which is deprecated
+{1} - A Nuget package name.
+  </note>
       </trans-unit>
       <trans-unit id="XA_Manifest_AutoGenerated_Header">
         <source>

diff --git a/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.pl.xlf b/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.pl.xlf
@@ -71,6 +71,18 @@ The following are literal names and should not be translated: ABI, 'libs/armeabi
         <note>The following are literal names and should not be translated: ABI, NuGet
 {0} - The native library file path
 {1} - Either the name of the NuGet package or a path to the native library</note>
+      </trans-unit>
+      <trans-unit id="XA4313">
+        <source>The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</source>
+        <target state="new">The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</target>
+        <note>The following are literal names and should not be translated:
+{0} - The Assembly name which is deprecated
+{1} - A Nuget package name.
+  </note>
       </trans-unit>
       <trans-unit id="XA_Manifest_AutoGenerated_Header">
         <source>

diff --git a/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.pt-BR.xlf b/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.pt-BR.xlf
@@ -71,6 +71,18 @@ The following are literal names and should not be translated: ABI, 'libs/armeabi
         <note>The following are literal names and should not be translated: ABI, NuGet
 {0} - The native library file path
 {1} - Either the name of the NuGet package or a path to the native library</note>
+      </trans-unit>
+      <trans-unit id="XA4313">
+        <source>The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</source>
+        <target state="new">The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</target>
+        <note>The following are literal names and should not be translated:
+{0} - The Assembly name which is deprecated
+{1} - A Nuget package name.
+  </note>
       </trans-unit>
       <trans-unit id="XA_Manifest_AutoGenerated_Header">
         <source>

diff --git a/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.ru.xlf b/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.ru.xlf
@@ -71,6 +71,18 @@ The following are literal names and should not be translated: ABI, 'libs/armeabi
         <note>The following are literal names and should not be translated: ABI, NuGet
 {0} - The native library file path
 {1} - Either the name of the NuGet package or a path to the native library</note>
+      </trans-unit>
+      <trans-unit id="XA4313">
+        <source>The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</source>
+        <target state="new">The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</target>
+        <note>The following are literal names and should not be translated:
+{0} - The Assembly name which is deprecated
+{1} - A Nuget package name.
+  </note>
       </trans-unit>
       <trans-unit id="XA_Manifest_AutoGenerated_Header">
         <source>

diff --git a/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.tr.xlf b/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.tr.xlf
@@ -71,6 +71,18 @@ The following are literal names and should not be translated: ABI, 'libs/armeabi
         <note>The following are literal names and should not be translated: ABI, NuGet
 {0} - The native library file path
 {1} - Either the name of the NuGet package or a path to the native library</note>
+      </trans-unit>
+      <trans-unit id="XA4313">
+        <source>The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</source>
+        <target state="new">The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</target>
+        <note>The following are literal names and should not be translated:
+{0} - The Assembly name which is deprecated
+{1} - A Nuget package name.
+  </note>
       </trans-unit>
       <trans-unit id="XA_Manifest_AutoGenerated_Header">
         <source>

diff --git a/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.zh-Hans.xlf b/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.zh-Hans.xlf
@@ -71,6 +71,18 @@ The following are literal names and should not be translated: ABI, 'libs/armeabi
         <note>The following are literal names and should not be translated: ABI, NuGet
 {0} - The native library file path
 {1} - Either the name of the NuGet package or a path to the native library</note>
+      </trans-unit>
+      <trans-unit id="XA4313">
+        <source>The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</source>
+        <target state="new">The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</target>
+        <note>The following are literal names and should not be translated:
+{0} - The Assembly name which is deprecated
+{1} - A Nuget package name.
+  </note>
       </trans-unit>
       <trans-unit id="XA_Manifest_AutoGenerated_Header">
         <source>

diff --git a/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.zh-Hant.xlf b/src/Xamarin.Android.Build.Tasks/Properties/xlf/Resources.zh-Hant.xlf
@@ -71,6 +71,18 @@ The following are literal names and should not be translated: ABI, 'libs/armeabi
         <note>The following are literal names and should not be translated: ABI, NuGet
 {0} - The native library file path
 {1} - Either the name of the NuGet package or a path to the native library</note>
+      </trans-unit>
+      <trans-unit id="XA4313">
+        <source>The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</source>
+        <target state="new">The built-in '{0}' reference has been deprecated.
+Remove the '{0}' reference from your project and add the '{1}' NuGet package instead.
+</target>
+        <note>The following are literal names and should not be translated:
+{0} - The Assembly name which is deprecated
+{1} - A Nuget package name.
+  </note>
       </trans-unit>
       <trans-unit id="XA_Manifest_AutoGenerated_Header">
         <source>

diff --git a/src/Xamarin.Android.Build.Tasks/Tasks/GenerateJavaStubs.cs b/src/Xamarin.Android.Build.Tasks/Tasks/GenerateJavaStubs.cs
@@ -163,8 +163,11 @@ void Run (DirectoryAssemblyResolver res)
 					Log.LogDebugMessage ($"Skipping Java Stub Generation for {asm.ItemSpec}");
 					continue;
 				}
-				allTypemapAssemblies.Add (asm.ItemSpec);
-				userAssemblies.Add (Path.GetFileNameWithoutExtension (asm.ItemSpec), asm.ItemSpec);
+				if (!allTypemapAssemblies.Contains (asm.ItemSpec))
+					allTypemapAssemblies.Add (asm.ItemSpec);
+				string name = Path.GetFileNameWithoutExtension (asm.ItemSpec);
+				if (!userAssemblies.ContainsKey (name))
+					userAssemblies.Add (name, asm.ItemSpec);
 			}
 
 			// Step 1 - Find all the JLO types

diff --git a/src/Xamarin.Android.Build.Tasks/Tests/Xamarin.Android.Build.Tests/BuildTest.cs b/src/Xamarin.Android.Build.Tasks/Tests/Xamarin.Android.Build.Tests/BuildTest.cs
@@ -3986,6 +3986,36 @@ public void XA1018 ()
 			}
 		}
 
+		[Test]
+		[Category ("DotNetIgnore")] // OpenTK not even shipped for .net 6.
+		public void XA4313 ()
+		{
+			var proj = new XamarinAndroidApplicationProject () {
+				References = {
+					new BuildItem.Reference ("OpenTK-1.0")
+				},
+			};
+			using (var builder = CreateApkBuilder ()) {
+				builder.ThrowOnBuildFailure = false;
+				Assert.IsTrue (builder.Build (proj), "Build should have succeeded.");
+				string error = builder.LastBuildOutput
+						.SkipWhile (x => !x.StartsWith ("Build succeeded."))
+						.FirstOrDefault (x => x.Contains ("warning XA4313"));
+				Assert.IsNotNull (error, "Build should have failed with XA4313.");
+			}
+		}
+
+		[Test]
+		public void OpenTKNugetWorks ()
+		{
+			var proj = new XamarinAndroidApplicationProject ();
+			proj.PackageReferences.Add (KnownPackages.Xamarin_Legacy_OpenTK);
+			using (var builder = CreateApkBuilder ()) {
+				builder.ThrowOnBuildFailure = false;
+				Assert.IsTrue (builder.Build (proj), "Build should have succeeded.");
+			}
+		}
+
 		static readonly object [] XA1027XA1028Source = new object [] {
 			new object [] {
 				/* linkTool */                   "r8",

diff --git a/src/Xamarin.Android.Build.Tasks/Tests/Xamarin.ProjectTools/Android/KnownPackages.cs b/src/Xamarin.Android.Build.Tasks/Tests/Xamarin.ProjectTools/Android/KnownPackages.cs
@@ -550,6 +550,11 @@ public static class KnownPackages
 			Version = "2.4.1",
 			TargetFramework = "MonoAndroid10",
 		};
+		public static Package Xamarin_Legacy_OpenTK = new Package {
+			Id = "Xamarin.Legacy.OpenTK",
+			Version = "0.0.1-alpha",
+			TargetFramework = "MonoAndroid10",
+		};
 	}
 }