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• Kotlin plugin donated by JetBrains (obsolete)
• Kotlin Language Server

JetBrains Kotlin plugin (obsolete)

Donated by JetBreains.

Original URL: https://github.com/JetBrains/kotlin-netbeans

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Kotlin LSP

With the support of Microsoft's Language Server Protocol since NetBeans 12.x and later already provide some basic support in the , java/kotlin.editor module . With this plugin one can open a .kt file via the Windows→Favourites tabprovides some basic support for Kotlin.

• Syntax highlighting

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• (with the help of Kotlin.tmLanguage.json

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• ) (see this JavaDoc for more information or this wiki page)
• Code completion, navigation etc.

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• (with the help of Kotlin Language Server

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• )

One can open a .kt file via the Windows→Favourites tab. Syntax highlighting and bracket matching should be available.

The first time that you open a.kt file, a hint will appear on the top left of the editor that will prompt you to install the Kotlin LSP.

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Do so in order to add features like code completion and navigation to your editor.

1. Download and build Kotlin Language Server with JDK 11 using the command: ./gradlew :server:installDist (how can we add kotlin-language-server/server/build/install/server/bin/kotlin-language-server)
2. Open netbeans/java/kotlin.editor module in NetBeans IDE
3. Add a new class:

package org.netbeans.modules.kotlin.editor.lsp;
import java.io.File;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.netbeans.api.editor.mimelookup.MimeRegistration;
import org.netbeans.modules.lsp.client.spi.LanguageServerProvider;
import org.openide.util.Lookup;@MimeRegistration(mimeType="text/x-kotlin", service=LanguageServerProvider.class)
public class KotlinLSPServer implements LanguageServerProvider {
    private static final Logger LOG = Logger.getLogger(KotlinLSPServer.class.getName());
    @Override
    public LanguageServerDescription startServer(Lookup lookup) {
        File server = new File("<path_to_>/kotlin-language-server/server/build/install/server/bin/kotlin-language-server");
        //InstalledFileLocator.getDefault().locate("typescript-lsp/node_modules/typescript-language-server/lib/cli.js", null, false);
        try {
            Process p = new ProcessBuilder(new String[] {server.getAbsolutePath()}).directory(server.getParentFile().getParentFile()).redirectError(ProcessBuilder.Redirect.INHERIT).start();
            return LanguageServerDescription.create(p.getInputStream(), p.getOutputStream(), p);
        } catch (IOException ex) {
            LOG.log(Level.FINE, null, ex);
            return null;
        }
    }
}