Target .NET 8, #928

.build/runbuild.ps1

@@ -109,6 +109,7 @@ task Init -depends CheckSDK, UpdateLocalSDKVersion -description "This task makes
     Write-Host "Powershell Version: $($PSVersionTable.PSVersion)"
 
     Ensure-Directory-Exists "$artifactsDirectory"
+    Ensure-Directory-Exists "$nugetPackageDirectory" # helpful when adding this path to your nuget sources for local installs
 }
 
 task Restore -description "This task restores the dependencies" {

Directory.Build.targets

@@ -31,6 +31,7 @@
 
     <DefineConstants>$(DefineConstants);FEATURE_RANDOM_NEXTINT64_NEXTSINGLE</DefineConstants>
     <DefineConstants>$(DefineConstants);FEATURE_SPANFORMATTABLE</DefineConstants>
+    <DefineConstants>$(DefineConstants);FEATURE_SUPPORTEDOSPLATFORMATTRIBUTE</DefineConstants>
 
   </PropertyGroup>
 

TestTargetFramework.props

@@ -23,7 +23,7 @@
 <Project>
 
   <PropertyGroup>
-    <!-- Changing this setting will allow testing on all target frameworks within Visual Studio 2019.
+    <!-- Changing this setting will allow testing on all target frameworks within Visual Studio.
     Note that the main libraries are multi-targeted, so this has no effect on how they are compiled,
     this setting only affects the test projects. -->
     <!--<TargetFramework>net472</TargetFramework>-->
@@ -38,7 +38,7 @@
 
     <!-- Test Client to DLL target works as follows:
       Test Client       | Target Under Test
-      net8.0            | net6.0
+      net8.0            | net8.0
       net6.0            | net6.0
       net5.0            | netstandard2.1
       net48             | net462
@@ -67,6 +67,7 @@
 
     <!-- We purposely test on EoL frameworks for testing netstandard2.1, but we want to keep this warning in production code. -->
     <CheckEolTargetFramework Condition=" '$(TargetFramework)' == 'net5.0' ">false</CheckEolTargetFramework>
+    <SuppressTfmSupportBuildWarnings Condition=" '$(TargetFramework)' == 'net5.0' ">true</SuppressTfmSupportBuildWarnings>
 
     <NoWarn Label="Nested types should not be visible">$(NoWarn);CA1034</NoWarn>
     <NoWarn Label="Use Literals Where Appropriate">$(NoWarn);CA1802</NoWarn>

src/Lucene.Net.Analysis.Common/Analysis/Hunspell/Dictionary.cs

@@ -1,6 +1,5 @@
 // Lucene version compatibility level 4.10.4
 using J2N;
-using J2N.Collections.Generic.Extensions;
 using J2N.Numerics;
 using J2N.Text;
 using Lucene.Net.Diagnostics;
@@ -726,11 +725,11 @@ internal static string GetDictionaryEncoding(Stream affix)
         internal static readonly IDictionary<string, string> CHARSET_ALIASES = LoadCharsetAliases();
         private static IDictionary<string, string> LoadCharsetAliases() // LUCENENET: Avoid static constructors (see https://github.com/apache/lucenenet/pull/224#issuecomment-469284006)
         {
-            return new Dictionary<string, string>
+            return Collections.AsReadOnly(new Dictionary<string, string>
             {
                 ["microsoft-cp1251"] = "windows-1251",
                 ["TIS620-2533"] = "TIS-620"
-            }.AsReadOnly();
+            });
         }
 
         /// <summary>

src/Lucene.Net.Analysis.Common/Analysis/Util/AbstractAnalysisFactory.cs

@@ -1,5 +1,4 @@
 // Lucene version compatibility level 4.8.1
-using J2N.Collections.Generic.Extensions;
 using Lucene.Net.Analysis.Core;
 using Lucene.Net.Support;
 using Lucene.Net.Util;
@@ -38,7 +37,7 @@ namespace Lucene.Net.Analysis.Util
     /// The typical lifecycle for a factory consumer is:
     /// <list type="bullet">
     ///     <item><description>Create factory via its constructor (or via XXXFactory.ForName)</description></item>
-    ///     <item><description>(Optional) If the factory uses resources such as files, 
+    ///     <item><description>(Optional) If the factory uses resources such as files,
     ///         <see cref="IResourceLoaderAware.Inform(IResourceLoader)"/> is called to initialize those resources.</description></item>
     ///     <item><description>Consumer calls create() to obtain instances.</description></item>
     /// </list>
@@ -62,7 +61,7 @@ public abstract class AbstractAnalysisFactory
         protected AbstractAnalysisFactory(IDictionary<string, string> args)
         {
             IsExplicitLuceneMatchVersion = false;
-            originalArgs = args.AsReadOnly();
+            originalArgs = Collections.AsReadOnly(args);
             string version = Get(args, LUCENE_MATCH_VERSION_PARAM);
             // LUCENENET TODO: What should we do if the version is null?
             //luceneMatchVersion = version is null ? (LuceneVersion?)null : LuceneVersionHelpers.ParseLeniently(version);
@@ -79,7 +78,7 @@ protected AbstractAnalysisFactory(IDictionary<string, string> args)
         /// <summary>
         /// this method can be called in the <see cref="TokenizerFactory.Create(TextReader)"/>
         /// or <see cref="TokenFilterFactory.Create(TokenStream)"/> methods,
-        /// to inform user, that for this factory a <see cref="m_luceneMatchVersion"/> is required 
+        /// to inform user, that for this factory a <see cref="m_luceneMatchVersion"/> is required
         /// </summary>
         [SuppressMessage("Performance", "CA1822:Mark members as static", Justification = "By design")]
         protected void AssureMatchVersion() // LUCENENET TODO: Remove this method (not used anyway in .NET)
@@ -296,7 +295,7 @@ public virtual ISet<string> GetSet(IDictionary<string, string> args, string name
         }
 
         /// <summary>
-        /// Compiles a pattern for the value of the specified argument key <paramref name="name"/> 
+        /// Compiles a pattern for the value of the specified argument key <paramref name="name"/>
         /// </summary>
         protected Regex GetPattern(IDictionary<string, string> args, string name)
         {
@@ -372,7 +371,7 @@ protected IList<string> GetLines(IResourceLoader loader, string resource)
 
         /// <summary>
         /// Same as <see cref="GetWordSet(IResourceLoader, string, bool)"/>,
-        /// except the input is in snowball format. 
+        /// except the input is in snowball format.
         /// </summary>
         protected CharArraySet GetSnowballWordSet(IResourceLoader loader, string wordFiles, bool ignoreCase)
         {
@@ -428,7 +427,7 @@ private static class SplitFileNameHolder
 
         private const string CLASS_NAME = "class";
 
-        /// <returns> the string used to specify the concrete class name in a serialized representation: the class arg.  
+        /// <returns> the string used to specify the concrete class name in a serialized representation: the class arg.
         ///         If the concrete class name was not specified via a class arg, returns <c>GetType().Name</c>. </returns>
         public virtual string GetClassArg()
         {
@@ -445,4 +444,4 @@ public virtual string GetClassArg()
 
         public virtual bool IsExplicitLuceneMatchVersion { get; set; }
     }
-}
+}

src/Lucene.Net.Analysis.Common/Analysis/Util/AnalysisSPILoader.cs

@@ -1,5 +1,4 @@
 // Lucene version compatibility level 4.8.1
-using J2N.Collections.Generic.Extensions;
 using Lucene.Net.Support;
 using Lucene.Net.Support.Threading;
 using Lucene.Net.Util;
@@ -98,7 +97,7 @@ public void Reload()
                         services.Add(name, service);
                     }
                 }
-                this.services = services.AsReadOnly();
+                this.services = Collections.AsReadOnly(services);
             }
             finally
             {
@@ -136,4 +135,4 @@ public Type LookupClass(string name)
 
         public ICollection<string> AvailableServices => services.Keys;
     }
-}
+}

src/Lucene.Net.Analysis.Common/Lucene.Net.Analysis.Common.csproj

@@ -26,19 +26,19 @@
     <Description>Analyzers for indexing content in different languages and domains for the Lucene.NET full-text search engine library from The Apache Software Foundation.</Description>
     <PackageDocumentationRelativeUrl>analysis-common/overview.html</PackageDocumentationRelativeUrl>
   </PropertyGroup>
-  
+
   <Import Project="$(SolutionDir).build/nuget.props" />
-  
+
   <PropertyGroup>
-    <TargetFrameworks>net6.0;netstandard2.1;netstandard2.0;net462</TargetFrameworks>
+    <TargetFrameworks>net8.0;net6.0;netstandard2.1;netstandard2.0;net462</TargetFrameworks>
 
     <AssemblyTitle>Lucene.Net.Analysis.Common</AssemblyTitle>
     <PackageTags>$(PackageTags);analysis</PackageTags>
     <DocumentationFile>bin\$(Configuration)\$(TargetFramework)\$(AssemblyName).xml</DocumentationFile>
     <NoWarn>$(NoWarn);1591;1573</NoWarn>
   </PropertyGroup>
 
-  
+
 
   <ItemGroup>
     <EmbeddedResource Include="**/*.rslp" Exclude="bin/**/*;obj/**/*" Label="RSLP Test Data" />

src/Lucene.Net.Analysis.Kuromoji/Lucene.Net.Analysis.Kuromoji.csproj

@@ -28,17 +28,17 @@
   </PropertyGroup>
 
   <Import Project="$(SolutionDir).build/nuget.props" />
-  
+
   <PropertyGroup>
-    <TargetFrameworks>net6.0;netstandard2.1;netstandard2.0;net462</TargetFrameworks>
+    <TargetFrameworks>net8.0;net6.0;netstandard2.1;netstandard2.0;net462</TargetFrameworks>
 
     <AssemblyTitle>Lucene.Net.Analysis.Kuromoji</AssemblyTitle>
     <PackageTags>$(PackageTags);analysis;japanese</PackageTags>
     <DocumentationFile>bin\$(Configuration)\$(TargetFramework)\$(AssemblyName).xml</DocumentationFile>
     <NoWarn>$(NoWarn);1591;1573</NoWarn>
   </PropertyGroup>
 
-  
+
 
   <ItemGroup>
     <EmbeddedResource Include="**/*.txt" Exclude="bin/**/*;obj/**/*" Label="Text Test Data" />

src/Lucene.Net.Analysis.Morfologik/Lucene.Net.Analysis.Morfologik.csproj

@@ -26,11 +26,11 @@
     <Description>Analyzer for dictionary stemming, built-in Polish dictionary for the Lucene.NET full-text search engine library from The Apache Software Foundation.</Description>
     <PackageDocumentationRelativeUrl>analysis-morfologik/Lucene.Net.Analysis.Morfologik.html</PackageDocumentationRelativeUrl>
   </PropertyGroup>
-  
+
   <Import Project="$(SolutionDir).build/nuget.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>net6.0;netstandard2.1;netstandard2.0;net462</TargetFrameworks>
+    <TargetFrameworks>net8.0;net6.0;netstandard2.1;netstandard2.0;net462</TargetFrameworks>
 
     <AssemblyTitle>Lucene.Net.Analysis.Morfologik</AssemblyTitle>
     <RootNamespace>Lucene.Net.Analysis</RootNamespace>
@@ -39,7 +39,7 @@
     <NoWarn>$(NoWarn);1591;1573</NoWarn>
   </PropertyGroup>
 
-  
+
 
   <ItemGroup>
     <Compile Remove="Properties\AssemblyInfo.cs" />

src/Lucene.Net.Analysis.OpenNLP/Lucene.Net.Analysis.OpenNLP.csproj

@@ -32,7 +32,7 @@
   <PropertyGroup>
     <!-- Currently, IKVM doesn't officially support building NetFX on anything but Windows, so we skip it for contributors who may be on various platforms.
         We can remove the condition once that has been addressed. See: https://github.com/ikvmnet/ikvm-maven/issues/49 -->
-    <TargetFrameworks>net6.0</TargetFrameworks>
+    <TargetFrameworks>net8.0;net6.0</TargetFrameworks>
     <TargetFrameworks Condition="$([MSBuild]::IsOsPlatform('Windows'))">$(TargetFrameworks);net472</TargetFrameworks>
 
     <AssemblyTitle>Lucene.Net.Analysis.OpenNLP</AssemblyTitle>

src/Lucene.Net.Analysis.Phonetic/Language/Bm/Lang.cs

@@ -1,7 +1,7 @@
 // commons-codec version compatibility level: 1.9
 using J2N;
-using J2N.Collections.Generic.Extensions;
 using J2N.Text;
+using Lucene.Net.Support;
 using System;
 using System.Collections.Generic;
 using System.IO;
@@ -218,7 +218,7 @@ public static Lang LoadFromResource(string languageRulesResourceName, Languages
 
         private Lang(IList<LangRule> rules, Languages languages)
         {
-            this.rules = rules.AsReadOnly();
+            this.rules = Collections.AsReadOnly(rules);
             this.languages = languages;
         }
 

src/Lucene.Net.Analysis.Phonetic/Language/Bm/Rule.cs

@@ -1,6 +1,5 @@
 // commons-codec version compatibility level: 1.9
 using J2N;
-using J2N.Collections.Generic.Extensions;
 using J2N.Text;
 using Lucene.Net.Support;
 using Lucene.Net.Util;
@@ -150,10 +149,10 @@ private static IDictionary<NameType, IDictionary<RuleType, IDictionary<string, I
                         rs["common"] = ParseRules(CreateScanner(s, rt, "common"), CreateResourceName(s, rt, "common"));
                     }
 
-                    rts[rt] = rs.AsReadOnly();
+                    rts[rt] = Collections.AsReadOnly(rs);
                 }
 
-                rules[s] = rts.AsReadOnly();
+                rules[s] = Collections.AsReadOnly(rts);
             }
             return rules;
         }
@@ -217,7 +216,7 @@ private static TextReader CreateScanner(NameType nameType, RuleType rt, string l
 
         private static TextReader CreateScanner(string lang)
         {
-            string resName = string.Format("{0}.txt", lang); 
+            string resName = string.Format("{0}.txt", lang);
             Stream rulesIS = typeof(Languages).FindAndGetManifestResourceStream(resName);
 
             if (rulesIS is null)
@@ -869,7 +868,7 @@ public virtual bool PatternAndContextMatches(ICharSequence input, int i)
         /// <param name="i">The int position within the input.</param>
         /// <returns><c>true</c> if the pattern and left/right context match, <c>false</c> otherwise.</returns>
         // LUCENENET specific
-        public virtual bool PatternAndContextMatches(string input, int i) 
+        public virtual bool PatternAndContextMatches(string input, int i)
         {
             if (i < 0)
             {
@@ -940,7 +939,7 @@ public virtual bool PatternAndContextMatches(StringBuilder input, int i)
 
     public sealed class Phoneme : IPhonemeExpr
     {
-        // LUCENENET: It is no longer good practice to use binary serialization. 
+        // LUCENENET: It is no longer good practice to use binary serialization.
         // See: https://github.com/dotnet/corefx/issues/23584#issuecomment-325724568
 #if FEATURE_SERIALIZABLE
         [Serializable]

src/Lucene.Net.Analysis.Phonetic/Lucene.Net.Analysis.Phonetic.csproj

@@ -30,15 +30,15 @@
   <Import Project="$(SolutionDir).build/nuget.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>net6.0;netstandard2.1;netstandard2.0;net462</TargetFrameworks>
+    <TargetFrameworks>net8.0;net6.0;netstandard2.1;netstandard2.0;net462</TargetFrameworks>
 
     <AssemblyTitle>Lucene.Net.Analysis.Phonetic</AssemblyTitle>
     <PackageTags>$(PackageTags);analysis;soundex;double;metaphone;sounds;like;beider;morse;cologne;caverphone;nysiis;match;rating</PackageTags>
     <DocumentationFile>bin\$(Configuration)\$(TargetFramework)\$(AssemblyName).xml</DocumentationFile>
     <NoWarn>$(NoWarn);1591;1573</NoWarn>
   </PropertyGroup>
 
-  
+
 
   <ItemGroup>
     <EmbeddedResource Include="Language\*.txt" />

src/Lucene.Net.Analysis.SmartCn/Lucene.Net.Analysis.SmartCn.csproj

@@ -28,17 +28,17 @@
   </PropertyGroup>
 
   <Import Project="$(SolutionDir).build/nuget.props" />
-  
+
   <PropertyGroup>
-    <TargetFrameworks>net6.0;netstandard2.1;netstandard2.0;net462</TargetFrameworks>
+    <TargetFrameworks>net8.0;net6.0;netstandard2.1;netstandard2.0;net462</TargetFrameworks>
 
     <AssemblyTitle>Lucene.Net.Analysis.SmartCn</AssemblyTitle>
     <PackageTags>$(PackageTags);analysis;chinese;smart</PackageTags>
     <DocumentationFile>bin\$(Configuration)\$(TargetFramework)\$(AssemblyName).xml</DocumentationFile>
     <NoWarn>$(NoWarn);1591;1573</NoWarn>
   </PropertyGroup>
 
-  
+
 
   <ItemGroup>
     <EmbeddedResource Include="Hhmm/*.mem" Label="Dict Test Data" />

src/Lucene.Net.Analysis.Stempel/Lucene.Net.Analysis.Stempel.csproj

@@ -28,17 +28,17 @@
   </PropertyGroup>
 
   <Import Project="$(SolutionDir).build/nuget.props" />
-  
+
   <PropertyGroup>
-    <TargetFrameworks>net6.0;netstandard2.1;netstandard2.0;net462</TargetFrameworks>
+    <TargetFrameworks>net8.0;net6.0;netstandard2.1;netstandard2.0;net462</TargetFrameworks>
 
     <AssemblyTitle>Lucene.Net.Analysis.Stempel</AssemblyTitle>
     <PackageTags>$(PackageTags);analysis;polish</PackageTags>
     <DocumentationFile>bin\$(Configuration)\$(TargetFramework)\$(AssemblyName).xml</DocumentationFile>
     <NoWarn>$(NoWarn);1591;1573</NoWarn>
   </PropertyGroup>
 
-  
+
 
   <ItemGroup>
     <EmbeddedResource Include="Pl\*.tbl;Pl\*.txt" />

src/Lucene.Net.Benchmark/Lucene.Net.Benchmark.csproj

@@ -26,19 +26,19 @@
     <Description>System for benchmarking the Lucene.NET full-text search engine library from The Apache Software Foundation.</Description>
     <PackageDocumentationRelativeUrl>benchmark/Lucene.Net.Benchmarks.html</PackageDocumentationRelativeUrl>
   </PropertyGroup>
-  
+
   <Import Project="$(SolutionDir).build/nuget.props" />
 
   <PropertyGroup>
-    <TargetFrameworks>net6.0;netstandard2.1;netstandard2.0;net462</TargetFrameworks>
+    <TargetFrameworks>net8.0;net6.0;netstandard2.1;netstandard2.0;net462</TargetFrameworks>
 
     <AssemblyTitle>Lucene.Net.Benchmark</AssemblyTitle>
     <PackageTags>$(PackageTags);benchmark</PackageTags>
     <DocumentationFile>bin\$(Configuration)\$(TargetFramework)\$(AssemblyName).xml</DocumentationFile>
     <NoWarn>$(NoWarn);1591;1573</NoWarn>
   </PropertyGroup>
 
-  
+
 
   <ItemGroup>
     <ProjectReference Include="..\dotnet\Lucene.Net.ICU\Lucene.Net.ICU.csproj" />

src/Lucene.Net.Classification/Lucene.Net.Classification.csproj

@@ -28,17 +28,17 @@
   </PropertyGroup>
 
   <Import Project="$(SolutionDir).build/nuget.props" />
-  
+
   <PropertyGroup>
-    <TargetFrameworks>net6.0;netstandard2.1;netstandard2.0;net462</TargetFrameworks>
+    <TargetFrameworks>net8.0;net6.0;netstandard2.1;netstandard2.0;net462</TargetFrameworks>
 
     <AssemblyTitle>Lucene.Net.Classification</AssemblyTitle>
     <PackageTags>$(PackageTags);classification</PackageTags>
     <DocumentationFile>bin\$(Configuration)\$(TargetFramework)\$(AssemblyName).xml</DocumentationFile>
     <NoWarn>$(NoWarn);1591;1573</NoWarn>
   </PropertyGroup>
 
-  
+
 
   <ItemGroup>
     <ProjectReference Include="..\Lucene.Net\Lucene.Net.csproj" />