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Support class file versions through Java 25 (major 69) #2

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Merged
wasabii merged 1 commit into from
Jul 18, 2026
Merged

Support class file versions through Java 25 (major 69) #2

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3 changes: 3 additions & 0 deletions src/IKVM.ByteCode/ClassFormatVersion.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -86,6 +86,9 @@ public record struct ClassFormatVersion(ushort Major, ushort Minor) : IComparabl
/// <summary>Java 25 (class file 69.0)</summary>
public static readonly ClassFormatVersion Java25 = new(69, 0);

/// <summary>The latest class file format version supported by this library.</summary>
public static readonly ClassFormatVersion Latest = Java25;

/// <summary>
/// Implicitly converts a major version number to a <see cref="ClassFormatVersion"/> with a minor version of <c>0</c>.
/// </summary>
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4 changes: 2 additions & 2 deletions src/IKVM.ByteCode/Decoding/ClassFile.cs
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Expand Up @@ -40,7 +40,7 @@ public static bool TryMeasure(ref ClassFormatReader reader, ref int size)
if (reader.TryReadU2(out ushort majorVersion) == false)
return false;

if (majorVersion > 63)
if (majorVersion > ClassFormatVersion.Latest.Major)
throw new UnsupportedClassVersionException(new ClassFormatVersion(majorVersion, minorVersion));

if (ConstantTable.TryMeasure(ref reader, ref size) == false)
Expand Down Expand Up @@ -252,7 +252,7 @@ public static bool TryRead(ref ClassFormatReader reader, out ClassFile? clazz, I
if (reader.TryReadU2(out ushort majorVersion) == false)
return false;

if (majorVersion > 63)
if (majorVersion > ClassFormatVersion.Latest.Major)
throw new UnsupportedClassVersionException(new ClassFormatVersion(majorVersion, minorVersion));

var version = new ClassFormatVersion(majorVersion, minorVersion);
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