Remove TeaVM-WASI support (#1202)

This has been unmaintained for quite some time now and has never reached
feature parity with other backends. In preparation for #1192 this commit
removes the teavm-java generator entirely with a "tombstone" left in the
README about the last commit which had the code.

Author: alexcrichton

.github/workflows/main.yml

@@ -59,7 +59,7 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
         # moonbit removed from language matrix for now - causing CI failures
-        lang: [c, rust, teavm-java, go, csharp]
+        lang: [c, rust, go, csharp]
         exclude:
           # For now csharp doesn't work on macos, so exclude it from testing.
           - os: macos-latest
@@ -99,14 +99,6 @@ jobs:
       shell: powershell
       if: matrix.os == 'windows-latest' && matrix.lang == 'moonbit'
 
-    - run: ci/download-teavm.sh
-      if: matrix.lang == 'teavm-java'
-    - uses: actions/setup-java@v4
-      if: matrix.lang == 'teavm-java'
-      with:
-        java-version: '18'
-        distribution: 'adopt'
-
     - uses: actions/setup-go@v4
       if: matrix.lang == 'go'
       with:
@@ -160,7 +152,6 @@ jobs:
     - run: cargo build --no-default-features
     - run: cargo build --no-default-features --features rust
     - run: cargo build --no-default-features --features c
-    - run: cargo build --no-default-features --features teavm-java
     - run: cargo build --no-default-features --features go
     - run: cargo build --no-default-features --features csharp
     - run: cargo build --no-default-features --features markdown

Cargo.toml

@@ -42,7 +42,6 @@ wit-component = "0.227.0"
 wit-bindgen-core = { path = 'crates/core', version = '0.40.0' }
 wit-bindgen-c = { path = 'crates/c', version = '0.40.0' }
 wit-bindgen-rust = { path = "crates/rust", version = "0.40.0" }
-wit-bindgen-teavm-java = { path = 'crates/teavm-java', version = '0.40.0' }
 wit-bindgen-go = { path = 'crates/go', version = '0.40.0' }
 wit-bindgen-csharp = { path = 'crates/csharp', version = '0.40.0' }
 wit-bindgen-markdown = { path = 'crates/markdown', version = '0.40.0' }
@@ -60,7 +59,6 @@ wit-bindgen-rust = { workspace = true, features = ['clap'], optional = true }
 wit-bindgen-c = { workspace = true, features = ['clap'], optional = true }
 wit-bindgen-markdown = { workspace = true, features = ['clap'], optional = true }
 wit-bindgen-moonbit = { workspace = true, features = ['clap'], optional = true }
-wit-bindgen-teavm-java = { workspace = true, features = ['clap'], optional = true }
 wit-bindgen-go = { workspace = true, features = ['clap'], optional = true }
 wit-bindgen-csharp = { workspace = true, features = ['clap'], optional = true }
 wit-component = { workspace = true }
@@ -71,7 +69,6 @@ default = [
   'c',
   'rust',
   'markdown',
-  'teavm-java',
   'go',
   'csharp',
   'moonbit',
@@ -80,7 +77,6 @@ default = [
 c = ['dep:wit-bindgen-c']
 rust = ['dep:wit-bindgen-rust']
 markdown = ['dep:wit-bindgen-markdown']
-teavm-java = ['dep:wit-bindgen-teavm-java']
 go = ['dep:wit-bindgen-go']
 csharp = ['dep:wit-bindgen-csharp']
 csharp-mono = ['csharp']

README.md

@@ -325,7 +325,7 @@ cd MyApp
 dotnet new nugetconfig
 ```
 
-In the `nuget.config` after `<clear />`make sure you have: 
+In the `nuget.config` after `<clear />`make sure you have:
 
 ```
 <add key="dotnet-experimental" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-experimental/nuget/v3/index.json" />
@@ -347,7 +347,7 @@ In the MyApp.csproj add the following to the property group:
 Add the native-aot compiler (substitute `win-x64` for `linux-x64` on Linux):
 
 ```
-dotnet add package Microsoft.DotNet.ILCompiler.LLVM --prerelease 
+dotnet add package Microsoft.DotNet.ILCompiler.LLVM --prerelease
 dotnet add package runtime.win-x64.Microsoft.DotNet.ILCompiler.LLVM --prerelease
 ```
 
@@ -361,10 +361,11 @@ Checkout out [componentize-dotnet](https://github.com/bytecodealliance/component
 
 ### Guest: Java
 
-Java bytecode can be compiled to WebAssembly using
-[TeaVM-WASI](https://github.com/fermyon/teavm-wasi). With this generator,
-`wit-bindgen` will emit `*.java` files which may be used with any JVM language,
-e.g. Java, Kotlin, Clojure, Scala, etc.
+This project historically had some support for
+[TeaVM-WASI](https://github.com/fermyon/teavm-wasi), but it was unmaintained for
+a long time and never was at feature parity with other generators, so it was
+removed. The last commit with support for TeaVM-WASI was
+https://github.com/bytecodealliance/wit-bindgen/commit/86e8ae2b8b97f11b73b273345b0e00340f017270.
 
 ### Guest: TinyGo
 

ci/download-teavm.sh

@@ -22,7 +22,6 @@ const CRATES_TO_PUBLISH: &[&str] = &[
     "wit-bindgen-rust",
     "wit-bindgen-go",
     "wit-bindgen-csharp",
-    "wit-bindgen-teavm-java",
     "wit-bindgen-markdown",
     "wit-bindgen-moonbit",
     "wit-bindgen-rust-macro",