IKVM.CoreLib and Diagnostics

IKVM.refs.targets

@@ -5,6 +5,11 @@
     </PropertyGroup>
 
     <ItemGroup>
+        <ProjectReference Include="$(MSBuildThisFileDirectory)src\IKVM.CoreLib\IKVM.CoreLib.csproj">
+            <ReferenceOutputAssembly>true</ReferenceOutputAssembly>
+            <PrivateAssets>all</PrivateAssets>
+            <OutputItemType>IkvmLibsItem</OutputItemType>
+        </ProjectReference>
         <ProjectReference Include="$(MSBuildThisFileDirectory)src\IKVM.Runtime\IKVM.Runtime.csproj">
             <ReferenceOutputAssembly>true</ReferenceOutputAssembly>
             <PrivateAssets>all</PrivateAssets>

IKVM.sln

@@ -339,6 +339,8 @@ Project("{6DE1C62B-E8D7-451A-8734-87EAEB46E35B}") = "libj2gss", "src\libj2gss\li
 EndProject
 Project("{6DE1C62B-E8D7-451A-8734-87EAEB46E35B}") = "libsspi_bridge", "src\libsspi_bridge\libsspi_bridge.clangproj", "{461D3F93-30AD-481E-B3D3-476A3CE2BF7B}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "IKVM.CoreLib", "src\IKVM.CoreLib\IKVM.CoreLib.csproj", "{C6556982-85B8-4E58-A693-1239D4823BD7}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -909,6 +911,10 @@ Global
 		{461D3F93-30AD-481E-B3D3-476A3CE2BF7B}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{461D3F93-30AD-481E-B3D3-476A3CE2BF7B}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{461D3F93-30AD-481E-B3D3-476A3CE2BF7B}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C6556982-85B8-4E58-A693-1239D4823BD7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C6556982-85B8-4E58-A693-1239D4823BD7}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C6556982-85B8-4E58-A693-1239D4823BD7}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C6556982-85B8-4E58-A693-1239D4823BD7}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

src/IKVM.ConsoleApp/Program.cs

@@ -1,12 +1,29 @@
-namespace IKVM.ConsoleApp
+using System;
+using System.Diagnostics.Tracing;
+
+using IKVM.Runtime;
+
+namespace IKVM.ConsoleApp
 {
 
     public class Program
     {
 
         public static void Main(string[] args)
         {
+            var l = new Listener();
+            var o = new java.lang.Object();
+            java.lang.System.loadLibrary("hi");
+        }
+
+    }
+
+    class Listener : EventListener
+    {
 
+        protected override void OnEventWritten(EventWrittenEventArgs eventData)
+        {
+            Console.WriteLine(eventData);
         }
 
     }

src/IKVM.CoreLib/Diagnostics/Diagnostic.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Text;
+
+namespace IKVM.CoreLib.Diagnostics
+{
+
+#if NET8_0_OR_GREATER
+    internal partial record class Diagnostic(int Id, string Name, CompositeFormat Message, DiagnosticLevel Level)
+#else
+    internal partial record class Diagnostic(int Id, string Name, string Message, DiagnosticLevel Level)
+#endif
+    {
+
+        /// <summary>
+        /// Creates a new diagnostic event with the specified arguments.
+        /// </summary>
+        /// <param name="args"></param>
+        /// <returns></returns>
+        public DiagnosticEvent Event(ReadOnlySpan<object?> args) => new DiagnosticEvent(this, args);
+
+    }
+
+}