fix(gui): reduce usage of nullable decompiler field in jadx wrapper (#1506)

jadx-gui/src/main/java/jadx/gui/JadxWrapper.java

@@ -6,18 +6,27 @@ import java.util.Collections;
 import java.util.List;
 import java.util.stream.Collectors;
 
+import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import jadx.api.ICodeInfo;
 import jadx.api.JadxArgs;
 import jadx.api.JadxDecompiler;
 import jadx.api.JavaClass;
+import jadx.api.JavaNode;
 import jadx.api.JavaPackage;
 import jadx.api.ResourceFile;
 import jadx.api.impl.InMemoryCodeCache;
+import jadx.api.metadata.ICodeNodeRef;
+import jadx.api.plugins.JadxPlugin;
+import jadx.api.plugins.JadxPluginManager;
 import jadx.core.dex.nodes.ClassNode;
 import jadx.core.dex.nodes.ProcessState;
+import jadx.core.dex.nodes.RootNode;
+import jadx.core.dex.visitors.rename.RenameVisitor;
+import jadx.core.utils.exceptions.JadxRuntimeException;
 import jadx.core.utils.files.FileUtils;
 import jadx.gui.settings.JadxProject;
 import jadx.gui.settings.JadxSettings;
@@ -34,7 +43,7 @@ public class JadxWrapper {
 	private static final Logger LOG = LoggerFactory.getLogger(JadxWrapper.class);
 
 	private final MainWindow mainWindow;
-	private JadxDecompiler decompiler;
+	private @Nullable JadxDecompiler decompiler;
 
 	public JadxWrapper(MainWindow mainWindow) {
 		this.mainWindow = mainWindow;
@@ -52,14 +61,14 @@ public class JadxWrapper {
 			this.decompiler.load();
 			initCodeCache();
 		} catch (Exception e) {
-			LOG.error("Jadx init error", e);
+			LOG.error("Jadx decompiler wrapper init error", e);
 			close();
 		}
 	}
 
 	// TODO: check and move into core package
 	public void unloadClasses() {
-		for (ClassNode cls : decompiler.getRoot().getClasses()) {
+		for (ClassNode cls : getDecompiler().getRoot().getClasses()) {
 			ProcessState clsState = cls.getState();
 			cls.unload();
 			cls.setState(clsState == PROCESS_COMPLETE ? GENERATED_AND_UNLOADED : NOT_LOADED);
@@ -70,12 +79,12 @@ public class JadxWrapper {
 		try {
 			if (decompiler != null) {
 				decompiler.close();
-				mainWindow.getCacheObject().reset();
 			}
 		} catch (Exception e) {
 			LOG.error("Jadx decompiler close error", e);
 		} finally {
 			decompiler = null;
+			mainWindow.getCacheObject().reset();
 		}
 	}
 
@@ -94,7 +103,7 @@ public class JadxWrapper {
 	}
 
 	private BufferCodeCache buildBufferedDiskCache() {
-		DiskCodeCache diskCache = new DiskCodeCache(decompiler.getRoot(), getProject().getCacheDir());
+		DiskCodeCache diskCache = new DiskCodeCache(getDecompiler().getRoot(), getProject().getCacheDir());
 		return new BufferCodeCache(diskCache);
 	}
 
@@ -102,14 +111,14 @@ public class JadxWrapper {
 	 * Get the complete list of classes
 	 */
 	public List<JavaClass> getClasses() {
-		return decompiler.getClasses();
+		return getDecompiler().getClasses();
 	}
 
 	/**
 	 * Get all classes that are not excluded by the excluded packages settings
 	 */
 	public List<JavaClass> getIncludedClasses() {
-		List<JavaClass> classList = decompiler.getClasses();
+		List<JavaClass> classList = getDecompiler().getClasses();
 		List<String> excludedPackages = getExcludedPackages();
 		if (excludedPackages.isEmpty()) {
 			return classList;
@@ -123,7 +132,7 @@ public class JadxWrapper {
 	 * Get all classes that are not excluded by the excluded packages settings including inner classes
 	 */
 	public List<JavaClass> getIncludedClassesWithInners() {
-		List<JavaClass> classes = decompiler.getClassesWithInners();
+		List<JavaClass> classes = getDecompiler().getClassesWithInners();
 		List<String> excludedPackages = getExcludedPackages();
 		if (excludedPackages.isEmpty()) {
 			return classes;
@@ -145,7 +154,7 @@ public class JadxWrapper {
 	}
 
 	public List<List<JavaClass>> buildDecompileBatches(List<JavaClass> classes) {
-		return decompiler.getDecompileScheduler().buildBatches(classes);
+		return getDecompiler().getDecompileScheduler().buildBatches(classes);
 	}
 
 	// TODO: move to CLI and filter classes in JadxDecompiler
@@ -175,20 +184,61 @@ public class JadxWrapper {
 		getSettings().sync();
 	}
 
-	public List<JavaPackage> getPackages() {
-		return decompiler.getPackages();
+	public List<JadxPlugin> getAllPlugins() {
+		if (decompiler != null) {
+			return decompiler.getPluginManager().getAllPlugins();
+		}
+		JadxPluginManager pluginManager = new JadxPluginManager();
+		pluginManager.load();
+		return pluginManager.getAllPlugins();
 	}
 
-	public List<ResourceFile> getResources() {
-		return decompiler.getResources();
+	/**
+	 * TODO: make method private
+	 * Do not store JadxDecompiler in fields to not leak old instances
+	 */
+	public @NotNull JadxDecompiler getDecompiler() {
+		if (decompiler == null || decompiler.getRoot() == null) {
+			throw new JadxRuntimeException("Decompiler not yet loaded");
+		}
+		return decompiler;
 	}
 
-	public JadxDecompiler getDecompiler() {
-		return decompiler;
+	// TODO: forbid usage of this method
+	public RootNode getRootNode() {
+		return getDecompiler().getRoot();
+	}
+
+	public void reInitRenameVisitor() {
+		new RenameVisitor().init(getRootNode());
+	}
+
+	public void reloadCodeData() {
+		getDecompiler().reloadCodeData();
+	}
+
+	public JavaNode getJavaNodeByRef(ICodeNodeRef nodeRef) {
+		return getDecompiler().getJavaNodeByRef(nodeRef);
+	}
+
+	public JavaNode getEnclosingNode(ICodeInfo codeInfo, int pos) {
+		return getDecompiler().getEnclosingNode(codeInfo, pos);
+	}
+
+	public List<Runnable> getSaveTasks() {
+		return getDecompiler().getSaveTasks();
+	}
+
+	public List<JavaPackage> getPackages() {
+		return getDecompiler().getPackages();
+	}
+
+	public List<ResourceFile> getResources() {
+		return getDecompiler().getResources();
 	}
 
 	public JadxArgs getArgs() {
-		return decompiler.getArgs();
+		return getDecompiler().getArgs();
 	}
 
 	public JadxProject getProject() {
@@ -204,14 +254,14 @@ public class JadxWrapper {
 	 *                 Full name of an outer class. Inner classes are not supported.
 	 */
 	public @Nullable JavaClass searchJavaClassByFullAlias(String fullName) {
-		return decompiler.getClasses().stream()
+		return getDecompiler().getClasses().stream()
 				.filter(cls -> cls.getFullName().equals(fullName))
 				.findFirst()
 				.orElse(null);
 	}
 
 	public @Nullable JavaClass searchJavaClassByOrigClassName(String fullName) {
-		return decompiler.searchJavaClassByOrigFullName(fullName);
+		return getDecompiler().searchJavaClassByOrigFullName(fullName);
 	}
 
 	/**
@@ -219,7 +269,7 @@ public class JadxWrapper {
 	 *                Full raw name of an outer class. Inner classes are not supported.
 	 */
 	public @Nullable JavaClass searchJavaClassByRawName(String rawName) {
-		return decompiler.getClasses().stream()
+		return getDecompiler().getClasses().stream()
 				.filter(cls -> cls.getRawName().equals(rawName))
 				.findFirst()
 				.orElse(null);

jadx-gui/src/main/java/jadx/gui/device/debugger/DbgUtils.java

@@ -160,7 +160,7 @@ public class DbgUtils {
 	// TODO: parse AndroidManifest.xml instead of looking for keywords
 	private static String getManifestContent(MainWindow mainWindow) {
 		try {
-			ResourceFile androidManifest = mainWindow.getWrapper().getDecompiler().getResources()
+			ResourceFile androidManifest = mainWindow.getWrapper().getResources()
 					.stream()
 					.filter(res -> res.getType() == ResourceType.MANIFEST)
 					.findFirst()

jadx-gui/src/main/java/jadx/gui/jobs/ExportTask.java

@@ -6,7 +6,6 @@ import java.util.List;
 import javax.swing.JOptionPane;
 
 import jadx.api.ICodeCache;
-import jadx.api.JadxDecompiler;
 import jadx.gui.JadxWrapper;
 import jadx.gui.ui.MainWindow;
 import jadx.gui.utils.NLS;
@@ -35,9 +34,8 @@ public class ExportTask extends CancelableBackgroundTask {
 	@Override
 	public List<Runnable> scheduleJobs() {
 		wrapCodeCache();
-		JadxDecompiler decompiler = wrapper.getDecompiler();
-		decompiler.getArgs().setRootDir(saveDir);
-		List<Runnable> saveTasks = decompiler.getSaveTasks();
+		wrapper.getArgs().setRootDir(saveDir);
+		List<Runnable> saveTasks = wrapper.getSaveTasks();
 		this.timeLimit = DecompileTask.calcDecompileTimeLimit(saveTasks.size());
 		return saveTasks;
 	}

jadx-gui/src/main/java/jadx/gui/search/providers/CodeSearchProvider.java

@@ -8,11 +8,11 @@ import org.slf4j.LoggerFactory;
 
 import jadx.api.ICodeCache;
 import jadx.api.ICodeWriter;
-import jadx.api.JadxDecompiler;
 import jadx.api.JavaClass;
 import jadx.api.JavaNode;
 import jadx.api.metadata.ICodeMetadata;
 import jadx.api.metadata.ICodeNodeRef;
+import jadx.gui.JadxWrapper;
 import jadx.gui.jobs.Cancelable;
 import jadx.gui.search.SearchSettings;
 import jadx.gui.treemodel.CodeNode;
@@ -23,7 +23,7 @@ public final class CodeSearchProvider extends BaseSearchProvider {
 	private static final Logger LOG = LoggerFactory.getLogger(CodeSearchProvider.class);
 
 	private final ICodeCache codeCache;
-	private final JadxDecompiler decompiler;
+	private final JadxWrapper wrapper;
 
 	private @Nullable String code;
 	private int clsNum = 0;
@@ -32,7 +32,7 @@ public final class CodeSearchProvider extends BaseSearchProvider {
 	public CodeSearchProvider(MainWindow mw, SearchSettings searchSettings, List<JavaClass> classes) {
 		super(mw, searchSettings, classes);
 		this.codeCache = mw.getWrapper().getArgs().getCodeCache();
-		this.decompiler = mw.getWrapper().getDecompiler();
+		this.wrapper = mw.getWrapper();
 	}
 
 	@Override
@@ -75,7 +75,7 @@ public final class CodeSearchProvider extends BaseSearchProvider {
 		try {
 			ICodeMetadata metadata = javaCls.getCodeInfo().getCodeMetadata();
 			ICodeNodeRef nodeRef = metadata.getNodeAt(pos);
-			JavaNode encNode = decompiler.getJavaNodeByRef(nodeRef);
+			JavaNode encNode = wrapper.getJavaNodeByRef(nodeRef);
 			if (encNode != null) {
 				return convert(encNode);
 			}

jadx-gui/src/main/java/jadx/gui/settings/JadxSettingsWindow.java

@@ -65,7 +65,6 @@ import jadx.api.JadxArgs.UseKotlinMethodsForVarNames;
 import jadx.api.args.DeobfuscationMapFileMode;
 import jadx.api.plugins.JadxPlugin;
 import jadx.api.plugins.JadxPluginInfo;
-import jadx.api.plugins.JadxPluginManager;
 import jadx.api.plugins.options.JadxPluginOptions;
 import jadx.api.plugins.options.OptionDescription;
 import jadx.gui.ui.MainWindow;
@@ -580,8 +579,7 @@ public class JadxSettingsWindow extends JDialog {
 
 	private SettingsGroup makePluginOptionsGroup() {
 		SettingsGroup pluginsGroup = new SettingsGroup(NLS.str("preferences.plugins"));
-		JadxPluginManager pluginManager = mainWindow.getWrapper().getDecompiler().getPluginManager();
-		for (JadxPlugin plugin : pluginManager.getAllPlugins()) {
+		for (JadxPlugin plugin : mainWindow.getWrapper().getAllPlugins()) {
 			if (!(plugin instanceof JadxPluginOptions)) {
 				continue;
 			}

jadx-gui/src/main/java/jadx/gui/ui/codearea/CodeArea.java

@@ -16,10 +16,10 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import jadx.api.ICodeInfo;
-import jadx.api.JadxDecompiler;
 import jadx.api.JavaClass;
 import jadx.api.JavaNode;
 import jadx.api.metadata.ICodeAnnotation;
+import jadx.gui.JadxWrapper;
 import jadx.gui.settings.JadxProject;
 import jadx.gui.treemodel.JClass;
 import jadx.gui.treemodel.JNode;
@@ -222,7 +222,7 @@ public final class CodeArea extends AbstractCodeArea {
 			return null;
 		}
 		try {
-			return getDecompiler().getJavaNodeAtPosition(getCodeInfo(), offset);
+			return getJadxWrapper().getDecompiler().getJavaNodeAtPosition(getCodeInfo(), offset);
 		} catch (Exception e) {
 			LOG.error("Can't get java node by offset: {}", offset, e);
 		}
@@ -231,7 +231,7 @@ public final class CodeArea extends AbstractCodeArea {
 
 	public JavaNode getClosestJavaNode(int offset) {
 		try {
-			return getDecompiler().getClosestJavaNode(getCodeInfo(), offset);
+			return getJadxWrapper().getDecompiler().getClosestJavaNode(getCodeInfo(), offset);
 		} catch (Exception e) {
 			LOG.error("Can't get java node by offset: {}", offset, e);
 			return null;
@@ -244,7 +244,7 @@ public final class CodeArea extends AbstractCodeArea {
 			if (codeInfo.hasMetadata()) {
 				ICodeAnnotation ann = codeInfo.getCodeMetadata().getAt(pos);
 				if (ann != null && ann.getAnnType() == ICodeAnnotation.AnnType.CLASS) {
-					return (JavaClass) getDecompiler().getJavaNodeByCodeAnnotation(codeInfo, ann);
+					return (JavaClass) getJadxWrapper().getDecompiler().getJavaNodeByCodeAnnotation(codeInfo, ann);
 				}
 			}
 		} catch (Exception e) {
@@ -275,8 +275,8 @@ public final class CodeArea extends AbstractCodeArea {
 		return contentPanel.getTabbedPane().getMainWindow();
 	}
 
-	public JadxDecompiler getDecompiler() {
-		return getMainWindow().getWrapper().getDecompiler();
+	public JadxWrapper getJadxWrapper() {
+		return getMainWindow().getWrapper();
 	}
 
 	public JadxProject getProject() {

jadx-gui/src/main/java/jadx/gui/ui/codearea/CommentAction.java

@@ -11,7 +11,6 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import jadx.api.ICodeInfo;
-import jadx.api.JadxDecompiler;
 import jadx.api.JavaClass;
 import jadx.api.JavaMethod;
 import jadx.api.JavaNode;
@@ -25,6 +24,7 @@ import jadx.api.metadata.ICodeMetadata;
 import jadx.api.metadata.ICodeNodeRef;
 import jadx.api.metadata.annotations.InsnCodeOffset;
 import jadx.api.metadata.annotations.NodeDeclareRef;
+import jadx.gui.JadxWrapper;
 import jadx.gui.treemodel.JClass;
 import jadx.gui.treemodel.JNode;
 import jadx.gui.ui.dialog.CommentDialog;
@@ -87,7 +87,7 @@ public class CommentAction extends AbstractAction implements DefaultPopupMenuLis
 			return null;
 		}
 		try {
-			JadxDecompiler decompiler = codeArea.getDecompiler();
+			JadxWrapper wrapper = codeArea.getJadxWrapper();
 			ICodeInfo codeInfo = codeArea.getCodeInfo();
 			ICodeMetadata metadata = codeInfo.getCodeMetadata();
 			int lineStartPos = codeArea.getLineStartFor(pos);
@@ -95,7 +95,7 @@ public class CommentAction extends AbstractAction implements DefaultPopupMenuLis
 			// add method line comment by instruction offset
 			ICodeAnnotation offsetAnn = metadata.searchUp(pos, lineStartPos, AnnType.OFFSET);
 			if (offsetAnn instanceof InsnCodeOffset) {
-				JavaNode node = decompiler.getJavaNodeByRef(metadata.getNodeAt(pos));
+				JavaNode node = wrapper.getJavaNodeByRef(metadata.getNodeAt(pos));
 				if (node instanceof JavaMethod) {
 					int rawOffset = ((InsnCodeOffset) offsetAnn).getOffset();
 					JadxNodeRef nodeRef = JadxNodeRef.forMth((JavaMethod) node);
@@ -114,7 +114,7 @@ public class CommentAction extends AbstractAction implements DefaultPopupMenuLis
 				return null;
 			});
 			if (nodeDef != null) {
-				JadxNodeRef nodeRef = JadxNodeRef.forJavaNode(decompiler.getJavaNodeByRef(nodeDef));
+				JadxNodeRef nodeRef = JadxNodeRef.forJavaNode(wrapper.getJavaNodeByRef(nodeDef));
 				return new JadxCodeComment(nodeRef, "");
 			}
 
@@ -128,7 +128,7 @@ public class CommentAction extends AbstractAction implements DefaultPopupMenuLis
 					return null;
 				});
 				if (nodeRef != null) {
-					JavaNode defNode = decompiler.getJavaNodeByRef(nodeRef);
+					JavaNode defNode = wrapper.getJavaNodeByRef(nodeRef);
 					return new JadxCodeComment(JadxNodeRef.forJavaNode(defNode), "");
 				}
 			}

jadx-gui/src/main/java/jadx/gui/ui/dialog/CommentDialog.java

@@ -65,7 +65,7 @@ public class CommentDialog extends JDialog {
 			Collections.sort(list);
 			codeData.setComments(list);
 			project.setCodeData(codeData);
-			codeArea.getMainWindow().getWrapper().getDecompiler().reloadCodeData();
+			codeArea.getMainWindow().getWrapper().reloadCodeData();
 		} catch (Exception e) {
 			LOG.error("Comment action failed", e);
 		}

jadx-gui/src/main/java/jadx/gui/ui/dialog/ExcludePkgDialog.java

@@ -121,7 +121,7 @@ public class ExcludePkgDialog extends JDialog {
 	}
 
 	private void initPackageList() {
-		List<String> pkgs = mainWindow.getWrapper().getDecompiler().getPackages()
+		List<String> pkgs = mainWindow.getWrapper().getPackages()
 				.stream()
 				.map(JavaPackage::getFullName)
 				.collect(Collectors.toList());

jadx-gui/src/main/java/jadx/gui/ui/dialog/RenameDialog.java

@@ -38,8 +38,6 @@ import jadx.api.data.impl.JadxCodeData;
 import jadx.api.data.impl.JadxCodeRef;
 import jadx.api.data.impl.JadxCodeRename;
 import jadx.api.data.impl.JadxNodeRef;
-import jadx.core.dex.nodes.RootNode;
-import jadx.core.dex.visitors.rename.RenameVisitor;
 import jadx.core.utils.Utils;
 import jadx.core.utils.exceptions.JadxRuntimeException;
 import jadx.gui.jobs.TaskStatus;
@@ -168,12 +166,11 @@ public class RenameDialog extends JDialog {
 		Collections.sort(list);
 		codeData.setRenames(list);
 		project.setCodeData(codeData);
-		mainWindow.getWrapper().getDecompiler().reloadCodeData();
+		mainWindow.getWrapper().reloadCodeData();
 	}
 
 	private void refreshState() {
-		RootNode rootNode = mainWindow.getWrapper().getDecompiler().getRoot();
-		new RenameVisitor().init(rootNode);
+		mainWindow.getWrapper().reInitRenameVisitor();
 
 		JNodeCache nodeCache = cache.getNodeCache();
 		JavaNode javaNode = node.getJavaNode();

jadx-gui/src/main/java/jadx/gui/ui/dialog/UsageDialog.java

@@ -16,11 +16,11 @@ import javax.swing.SwingConstants;
 import javax.swing.WindowConstants;
 
 import jadx.api.ICodeInfo;
-import jadx.api.JadxDecompiler;
 import jadx.api.JavaClass;
 import jadx.api.JavaMethod;
 import jadx.api.JavaNode;
 import jadx.api.utils.CodeUtils;
+import jadx.gui.JadxWrapper;
 import jadx.gui.jobs.TaskStatus;
 import jadx.gui.treemodel.CodeNode;
 import jadx.gui.treemodel.JMethod;
@@ -97,14 +97,14 @@ public class UsageDialog extends CommonSearchDialog {
 	private void processUsage(JavaNode searchNode, JavaClass topUseClass) {
 		ICodeInfo codeInfo = topUseClass.getCodeInfo();
 		String code = codeInfo.getCodeStr();
-		JadxDecompiler decompiler = mainWindow.getWrapper().getDecompiler();
+		JadxWrapper wrapper = mainWindow.getWrapper();
 		List<Integer> usePositions = topUseClass.getUsePlacesFor(codeInfo, searchNode);
 		for (int pos : usePositions) {
 			String line = CodeUtils.getLineForPos(code, pos);
 			if (line.startsWith("import ")) {
 				continue;
 			}
-			JavaNode enclosingNode = decompiler.getEnclosingNode(codeInfo, pos);
+			JavaNode enclosingNode = wrapper.getEnclosingNode(codeInfo, pos);
 			JavaNode usageNode = enclosingNode == null ? topUseClass : enclosingNode;
 			usageList.add(new CodeNode(getNodeCache().makeFrom(usageNode), line.trim(), pos));
 		}

jadx-gui/src/main/java/jadx/gui/ui/treenodes/SummaryNode.java

@@ -13,7 +13,6 @@ import javax.swing.ImageIcon;
 import org.apache.commons.text.StringEscapeUtils;
 
 import jadx.api.ICodeInfo;
-import jadx.api.JadxDecompiler;
 import jadx.api.impl.SimpleCodeInfo;
 import jadx.core.dex.attributes.IAttributeNode;
 import jadx.core.dex.nodes.ClassNode;
@@ -21,6 +20,7 @@ import jadx.core.dex.nodes.MethodNode;
 import jadx.core.dex.nodes.ProcessState;
 import jadx.core.utils.ErrorsCounter;
 import jadx.core.utils.Utils;
+import jadx.gui.JadxWrapper;
 import jadx.gui.treemodel.JClass;
 import jadx.gui.treemodel.JNode;
 import jadx.gui.ui.MainWindow;
@@ -35,9 +35,11 @@ public class SummaryNode extends JNode {
 	private static final ImageIcon ICON = UiUtils.openSvgIcon("nodes/detailView");
 
 	private final MainWindow mainWindow;
+	private final JadxWrapper wrapper;
 
 	public SummaryNode(MainWindow mainWindow) {
 		this.mainWindow = mainWindow;
+		this.wrapper = mainWindow.getWrapper();
 	}
 
 	@Override
@@ -60,17 +62,16 @@ public class SummaryNode extends JNode {
 
 	private void writeInputSummary(StringEscapeUtils.Builder builder) throws IOException {
 		builder.append("<h2>Input</h2>");
-		JadxDecompiler jadx = mainWindow.getWrapper().getDecompiler();
 		builder.append("<h3>Files</h3>");
 		builder.append("<ul>");
-		for (File inputFile : jadx.getArgs().getInputFiles()) {
+		for (File inputFile : wrapper.getArgs().getInputFiles()) {
 			builder.append("<li>");
 			builder.escape(inputFile.getCanonicalFile().getAbsolutePath());
 			builder.append("</li>");
 		}
 		builder.append("</ul>");
 
-		List<ClassNode> classes = jadx.getRoot().getClasses(true);
+		List<ClassNode> classes = wrapper.getRootNode().getClasses(true);
 		List<String> codeSources = classes.stream()
 				.map(ClassNode::getInputFileName)
 				.distinct()
@@ -108,8 +109,7 @@ public class SummaryNode extends JNode {
 
 	private void writeDecompilationSummary(StringEscapeUtils.Builder builder) {
 		builder.append("<h2>Decompilation</h2>");
-		JadxDecompiler jadx = mainWindow.getWrapper().getDecompiler();
-		List<ClassNode> classes = jadx.getRoot().getClasses(false);
+		List<ClassNode> classes = wrapper.getRootNode().getClasses(false);
 		int classesCount = classes.size();
 		long processedClasses = classes.stream().filter(c -> c.getState() == ProcessState.PROCESS_COMPLETE).count();
 		long generatedClasses = classes.stream().filter(c -> c.getState() == ProcessState.GENERATED_AND_UNLOADED).count();
@@ -119,7 +119,7 @@ public class SummaryNode extends JNode {
 		builder.append("<li>Code generated: " + valueAndPercent(generatedClasses, classesCount) + "</li>");
 		builder.append("</ul>");
 
-		ErrorsCounter counter = jadx.getRoot().getErrorsCounter();
+		ErrorsCounter counter = wrapper.getRootNode().getErrorsCounter();
 		Set<IAttributeNode> problemNodes = new HashSet<>();
 		problemNodes.addAll(counter.getErrorNodes());
 		problemNodes.addAll(counter.getWarnNodes());