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refactor: migrate Xtend to Java - com.avaloq.tools.ddk.xtext.check.generator
Convert the module's two remaining Xtend generator fragments to hand-written Java, byte-faithful to the xtend-gen ground truth: CheckValidatorFragment2 and quickfix/CheckQuickfixProviderFragment2 (StringConcatenation(Client) templates preserved exactly, bracketed with CHECKSTYLE:CONSTANTS-OFF/ON). Remove the now-unused per-module Xtend build wiring (xtend-gen entry in build.properties/.classpath, xtextBuilder/xtextNature in .project, the xtend-gen directory). Require-Bundle is unchanged: the templates legitimately use org.eclipse.xtend2.lib, provided transitively via org.eclipse.xtext(.xtext.generator). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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‎com.avaloq.tools.ddk.xtext.check.generator/.classpath‎

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<?xml version="1.0" encoding="UTF-8"?>
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<classpath>
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<classpathentry kind="src" path="src"/>
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<classpathentry kind="src" path="xtend-gen"/>
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<classpathentry kind="output" path="bin"/>
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21"/>
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<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins">

‎com.avaloq.tools.ddk.xtext.check.generator/.project‎

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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>org.eclipse.xtext.ui.shared.xtextBuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>net.sf.eclipsecs.core.CheckstyleBuilder</name>
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<arguments>
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<natures>
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<nature>org.eclipse.jdt.core.javanature</nature>
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<nature>org.eclipse.pde.PluginNature</nature>
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<nature>org.eclipse.xtext.ui.shared.xtextNature</nature>
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<nature>net.sourceforge.pmd.eclipse.plugin.pmdNature</nature>
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<nature>net.sf.eclipsecs.core.CheckstyleNature</nature>
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<nature>edu.umd.cs.findbugs.plugin.eclipse.findbugsNature</nature>

‎com.avaloq.tools.ddk.xtext.check.generator/build.properties‎

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source.. = src/,\
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xtend-gen/
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source.. = src/
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output.. = bin/
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bin.includes = META-INF/,\
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.

com.avaloq.tools.ddk.xtext.check.generator/src/com/avaloq/tools/ddk/xtext/check/generator/CheckValidatorFragment2.xtend renamed to com.avaloq.tools.ddk.xtext.check.generator/src/com/avaloq/tools/ddk/xtext/check/generator/CheckValidatorFragment2.java

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* Avaloq Group AG - initial API and implementation
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*******************************************************************************/
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package com.avaloq.tools.ddk.xtext.check.generator
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package com.avaloq.tools.ddk.xtext.check.generator;
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import org.eclipse.xtext.xtext.generator.AbstractXtextGeneratorFragment
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import static extension org.eclipse.xtext.xtext.generator.model.TypeReference.*
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import org.eclipse.xtext.xtext.generator.model.GuiceModuleAccess
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import com.avaloq.tools.ddk.check.runtime.validation.AbstractCheckValidator
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import com.avaloq.tools.ddk.check.runtime.validation.DefaultCheckValidator
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import org.eclipse.xtext.xtext.generator.AbstractXtextGeneratorFragment;
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import org.eclipse.xtext.xtext.generator.model.GuiceModuleAccess;
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import org.eclipse.xtext.xtext.generator.model.TypeReference;
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class CheckValidatorFragment2 extends AbstractXtextGeneratorFragment {
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import com.avaloq.tools.ddk.check.runtime.validation.AbstractCheckValidator;
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import com.avaloq.tools.ddk.check.runtime.validation.DefaultCheckValidator;
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static val RUNTIME_PLUGIN = "com.avaloq.tools.ddk.check.runtime.core"
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override generate() {
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new GuiceModuleAccess.BindingFactory().addTypeToTypeEagerSingleton(AbstractCheckValidator.typeRef,
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DefaultCheckValidator.typeRef).contributeTo(language.runtimeGenModule)
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@SuppressWarnings("nls")
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public class CheckValidatorFragment2 extends AbstractXtextGeneratorFragment {
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if (projectConfig.runtime.manifest !== null) {
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projectConfig.runtime.manifest.requiredBundles += RUNTIME_PLUGIN
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private static final String RUNTIME_PLUGIN = "com.avaloq.tools.ddk.check.runtime.core";
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@Override
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public void generate() {
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new GuiceModuleAccess.BindingFactory().addTypeToTypeEagerSingleton(TypeReference.typeRef(AbstractCheckValidator.class),
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TypeReference.typeRef(DefaultCheckValidator.class)).contributeTo(getLanguage().getRuntimeGenModule());
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if (getProjectConfig().getRuntime().getManifest() != null) {
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getProjectConfig().getRuntime().getManifest().getRequiredBundles().add(RUNTIME_PLUGIN);
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}
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}
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}
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}

‎com.avaloq.tools.ddk.xtext.check.generator/src/com/avaloq/tools/ddk/xtext/check/generator/quickfix/CheckQuickfixProviderFragment2.java‎

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/*******************************************************************************
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* Copyright (c) 2016 Avaloq Group AG and others.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* Avaloq Group AG - initial API and implementation
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*******************************************************************************/
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package com.avaloq.tools.ddk.xtext.check.generator.quickfix;
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import org.eclipse.xtend2.lib.StringConcatenationClient;
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import org.eclipse.xtext.Grammar;
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import org.eclipse.xtext.GrammarUtil;
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import org.eclipse.xtext.xtext.generator.AbstractXtextGeneratorFragment;
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import org.eclipse.xtext.xtext.generator.XtextGeneratorNaming;
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import org.eclipse.xtext.xtext.generator.model.FileAccessFactory;
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import org.eclipse.xtext.xtext.generator.model.TypeReference;
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import com.google.inject.Inject;
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@SuppressWarnings("nls")
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public class CheckQuickfixProviderFragment2 extends AbstractXtextGeneratorFragment {
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private static final String UI_PLUGIN = "com.avaloq.tools.ddk.check.runtime.ui";
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@Inject
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private XtextGeneratorNaming xtextGeneratorNaming;
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@Inject
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private FileAccessFactory fileAccessFactory;
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protected TypeReference getQuickfixProviderClass(final Grammar g) {
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return new TypeReference(
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xtextGeneratorNaming.getEclipsePluginBasePackage(g) + ".quickfix." + GrammarUtil.getSimpleName(g) + "QuickfixProvider");
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}
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@Override
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public void generate() {
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if (getProjectConfig().getEclipsePlugin().getManifest() != null) {
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getProjectConfig().getEclipsePlugin().getManifest().getRequiredBundles().add(UI_PLUGIN);
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}
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if (getProjectConfig().getEclipsePlugin().getSrc() != null) {
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generateQuickfixProvider();
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}
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if (getProjectConfig().getEclipsePlugin().getPluginXml() != null) {
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addRegistrationToPluginXml();
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}
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}
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protected void generateQuickfixProvider() {
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final StringConcatenationClient content = new StringConcatenationClient() {
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@Override
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protected void appendTo(final TargetStringConcatenation builder) {
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builder.append("""
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public class %s extends DefaultCheckQuickfixProvider {
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// @Fix(MyJavaValidator.INVALID_NAME)
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// public void capitalizeName(final Issue issue, IssueResolutionAcceptor acceptor) {
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// acceptor.accept(issue, "Capitalize name", "Capitalize the name.", "upcase.png", new IModification() {
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// public void apply(IModificationContext context) throws BadLocationException {
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// IXtextDocument xtextDocument = context.getXtextDocument();
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// String firstLetter = xtextDocument.get(issue.getOffset(), 1);
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// xtextDocument.replace(issue.getOffset(), 1, firstLetter.toUpperCase());
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// }
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// });
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// }
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}
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""".formatted(getQuickfixProviderClass(getGrammar()).getSimpleName()));
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}
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};
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fileAccessFactory.createJavaFile(getQuickfixProviderClass(getGrammar()), content).writeTo(getProjectConfig().getEclipsePlugin().getSrc());
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}
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protected void addRegistrationToPluginXml() {
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final TypeReference executableExtensionFactory = xtextGeneratorNaming.getEclipsePluginExecutableExtensionFactory(getGrammar());
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getProjectConfig().getEclipsePlugin().getPluginXml().getEntries().add("""
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<!-- quickfix marker resolution generator -->
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<extension
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point="org.eclipse.ui.ide.markerResolution">
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<markerResolutionGenerator
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class="%s:org.eclipse.xtext.ui.editor.quickfix.MarkerResolutionGenerator">
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</markerResolutionGenerator>
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</extension>
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""".formatted(executableExtensionFactory));
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}
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}

‎com.avaloq.tools.ddk.xtext.check.generator/src/com/avaloq/tools/ddk/xtext/check/generator/quickfix/CheckQuickfixProviderFragment2.xtend‎

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‎com.avaloq.tools.ddk.xtext.check.generator/xtend-gen/.gitignore‎

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