Merge pull request #1 from Outfluencer/master

Added some decompilers and decompile and disassemble async

src/me/ByteEdit/boxes/CompilationBox.java

@@ -15,6 +15,7 @@ import java.io.StringWriter;
 import java.net.URI;
 import java.nio.file.Files;
 import java.util.Arrays;
+import java.util.concurrent.TimeUnit;
 
 import javax.swing.JComponent;
 import javax.swing.JFrame;
@@ -26,6 +27,7 @@ import javax.tools.JavaCompiler;
 import javax.tools.SimpleJavaFileObject;
 import javax.tools.ToolProvider;
 
+import me.ByteEdit.decompiler.SingleThreadedExecutor;
 import org.fife.ui.rsyntaxtextarea.RSyntaxTextArea;
 import org.fife.ui.rsyntaxtextarea.SyntaxConstants;
 import org.fife.ui.rtextarea.RTextScrollPane;
@@ -105,37 +107,48 @@ public class CompilationBox extends JFrame {
 							null, Arrays.asList(new JavaSourceFromString("Compiled", source))).call();
 					String res = out.toString();
 					if (res.isEmpty()) {
-						File clazz = new File(tmpFolder, "Compiled.class");
-						ByteArrayOutputStream baos = new ByteArrayOutputStream();
-						InputStream is = new FileInputStream(clazz);
-						byte[] tmp = new byte[1024];
-						int r;
-						while ((r = is.read(tmp)) > 0) {
-							baos.write(tmp, 0, r);
-						}
-						is.close();
-						ClassReader read = new ClassReader(baos.toByteArray());
-						ClassNode node = new ClassNode();
-						read.accept(node, 0);
-						String dis = Disassembler.disassemble(node);
-						File[] files = tmpFolder.listFiles();
-						if (files != null)
-							for (File f : files) {
-								if (f.getName().equals("Compiled.class"))
-									continue;
-								baos = new ByteArrayOutputStream();
-								is = new FileInputStream(f);
+
+
+						SingleThreadedExecutor.execute( () -> {
+							try {
+								File clazz = new File(tmpFolder, "Compiled.class");
+								ByteArrayOutputStream baos = new ByteArrayOutputStream();
+								InputStream is = new FileInputStream(clazz);
+								byte[] tmp = new byte[1024];
+								int r;
 								while ((r = is.read(tmp)) > 0) {
 									baos.write(tmp, 0, r);
 								}
 								is.close();
-								read = new ClassReader(baos.toByteArray());
-								node = new ClassNode();
+
+
+								ClassReader read = new ClassReader(baos.toByteArray());
+								ClassNode node = new ClassNode();
 								read.accept(node, 0);
-								dis += "\n" + Disassembler.disassemble(node);
+								String dis = Disassembler.disassemble(node);
+								File[] files = tmpFolder.listFiles();
+								if (files != null)
+									for (File f : files) {
+										if (f.getName().equals("Compiled.class"))
+											continue;
+										baos = new ByteArrayOutputStream();
+										is = new FileInputStream(f);
+										while ((r = is.read(tmp)) > 0) {
+											baos.write(tmp, 0, r);
+										}
+										is.close();
+										read = new ClassReader(baos.toByteArray());
+										node = new ClassNode();
+										read.accept(node, 0);
+										dis += "\n" + Disassembler.disassemble(node);
+									}
+								compSuccess.textArea.setText(dis);
+								compSuccess.setVisible(true);
+							}catch (IOException e2){
+								e2.printStackTrace();
 							}
-						compSuccess.textArea.setText(dis);
-						compSuccess.setVisible(true);
+						});
+
 					} else {
 						JOptionPane.showMessageDialog(CompilationBox.this, res, "Error!", JOptionPane.ERROR_MESSAGE);
 					}

src/me/ByteEdit/boxes/GlobalSearchOpenBox.java

@@ -1,6 +1,7 @@
 package me.ByteEdit.boxes;
 
 import java.awt.Toolkit;
+import java.util.concurrent.TimeUnit;
 
 import javax.swing.DefaultListModel;
 import javax.swing.JFrame;
@@ -13,6 +14,7 @@ import javax.swing.event.ListSelectionEvent;
 import javax.swing.event.ListSelectionListener;
 import javax.swing.text.BadLocationException;
 
+import me.ByteEdit.decompiler.SingleThreadedExecutor;
 import org.objectweb.asm.tree.MethodNode;
 
 import me.ByteEdit.main.Main;
@@ -38,17 +40,21 @@ public class GlobalSearchOpenBox extends JFrame {
 		list.addListSelectionListener(new ListSelectionListener() {
 
 			public void valueChanged(ListSelectionEvent e) {
-				Info val = list.getSelectedValue();
-				if (val != null && !val.owner.equals(Main.currentNodeName)) {
-					int lineFound = Main.selectFileWithSearch(val.nodePath, val.mn);
-					if (lineFound != -1) {
-						try {
-							Main.txtByteEditView.setCaretPosition(Main.txtByteEditView.getLineStartOffset(lineFound));
-						} catch (BadLocationException e1) {
-							e1.printStackTrace();
+
+				SingleThreadedExecutor.execute( () -> {
+					Info val = list.getSelectedValue();
+					if (val != null && !val.owner.equals(Main.currentNodeName)) {
+						int lineFound = Main.selectFileWithSearch(val.nodePath, val.mn);
+						if (lineFound != -1) {
+							try {
+								Main.txtByteEditView.setCaretPosition(Main.txtByteEditView.getLineStartOffset(lineFound));
+							} catch (BadLocationException e1) {
+								//e1.printStackTrace();
+							}
 						}
 					}
-				}
+				});
+
 			}
 		});
 

src/me/ByteEdit/boxes/RenameBox.java

@@ -4,6 +4,7 @@ import java.awt.Toolkit;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.util.LinkedList;
+import java.util.concurrent.TimeUnit;
 
 import javax.swing.JButton;
 import javax.swing.JFrame;
@@ -13,6 +14,7 @@ import javax.swing.JPanel;
 import javax.swing.JTextField;
 import javax.swing.border.EmptyBorder;
 
+import me.ByteEdit.decompiler.SingleThreadedExecutor;
 import org.objectweb.asm.tree.AbstractInsnNode;
 import org.objectweb.asm.tree.ClassNode;
 import org.objectweb.asm.tree.FieldInsnNode;
@@ -210,27 +212,31 @@ public class RenameBox extends JFrame {
 						return;
 					}
 				}
-				try { // refresh
-					ClassNode classNode = Main.classNodes.get(Main.currentNodeName);
-					int prev = Main.txtByteEditView.getCaretPosition();
-					String dis = Disassembler.disassemble(classNode);
-					String substr = Main.currentNodeName.substring(0, Main.currentNodeName.length() - 6);
-					for (String key : Main.classNodes.keySet()) {
-						if (key.contains("$")) {
-							String[] split = key.split("\\$");
-							if (split[0].equals(substr)) {
-								dis += "\n" + Disassembler.disassemble(Main.classNodes.get(key));
+
+				SingleThreadedExecutor.execute( () -> {
+					try { // refresh
+						ClassNode classNode = Main.classNodes.get(Main.currentNodeName);
+						int prev = Main.txtByteEditView.getCaretPosition();
+						String dis = Disassembler.disassemble(classNode);
+						String substr = Main.currentNodeName.substring(0, Main.currentNodeName.length() - 6);
+						for (String key : Main.classNodes.keySet()) {
+							if (key.contains("$")) {
+								String[] split = key.split("\\$");
+								if (split[0].equals(substr)) {
+									dis += "\n" + Disassembler.disassemble(Main.classNodes.get(key));
+								}
 							}
 						}
+						Main.txtByteEditView.setText(dis);
+						Main.txtByteEditView.setCaretPosition(prev);
+					} catch (Exception e2) {
+						e2.printStackTrace();
 					}
-					Main.txtByteEditView.setText(dis);
-					Main.txtByteEditView.setCaretPosition(prev);
-				} catch (Exception e2) {
-					e2.printStackTrace();
-				}
-				name = newName;
-				desc = newDesc;
-				RenameBox.this.setVisible(false);
+					name = newName;
+					desc = newDesc;
+					RenameBox.this.setVisible(false);
+				});
+
 			}
 		});
 		btnRename.setBounds(345, 237, 89, 23);

src/me/ByteEdit/boxes/TypeOpenBox.java

@@ -3,6 +3,7 @@ package me.ByteEdit.boxes;
 import java.awt.Toolkit;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
+import java.util.concurrent.TimeUnit;
 
 import javax.swing.DefaultListModel;
 import javax.swing.JFrame;
@@ -17,6 +18,7 @@ import javax.swing.event.DocumentListener;
 import javax.swing.event.ListSelectionEvent;
 import javax.swing.event.ListSelectionListener;
 
+import me.ByteEdit.decompiler.SingleThreadedExecutor;
 import me.ByteEdit.main.Main;
 import me.ByteEdit.utils.UnicodeUtils;
 
@@ -43,7 +45,8 @@ public class TypeOpenBox extends JFrame {
 			public void valueChanged(ListSelectionEvent e) {
 				String val = list.getSelectedValue();
 				if (val != null && !val.equals(Main.currentNodeName)) {
-					Main.selectFile(val);
+
+					SingleThreadedExecutor.execute( () -> Main.selectFile(val));
 				}
 			}
 		});

src/me/ByteEdit/decompiler/CFRDecompiler.java

@@ -0,0 +1,165 @@
+package me.ByteEdit.decompiler;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.lang.reflect.Field;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.benf.cfr.reader.PluginRunner;
+import org.benf.cfr.reader.api.ClassFileSource;
+import org.benf.cfr.reader.bytecode.analysis.parse.utils.Pair;
+import org.benf.cfr.reader.entities.ClassFile;
+import org.benf.cfr.reader.entities.Method;
+import org.benf.cfr.reader.entities.constantpool.ConstantPool;
+import org.benf.cfr.reader.state.ClassFileSourceImpl;
+import org.benf.cfr.reader.state.DCCommonState;
+import org.benf.cfr.reader.util.bytestream.BaseByteData;
+import org.benf.cfr.reader.util.getopt.OptionsImpl;
+import org.benf.cfr.reader.util.output.ToStringDumper;
+import org.objectweb.asm.tree.ClassNode;
+import org.objectweb.asm.tree.MethodNode;
+
+@SuppressWarnings("deprecation")
+public class CFRDecompiler {
+
+	public static final HashMap<String, String> options = new HashMap<>();
+
+	static {
+		options.put("aexagg", "false");
+		options.put("allowcorrecting", "true");
+		options.put("arrayiter", "true");
+		options.put("caseinsensitivefs", "false");
+		options.put("clobber", "false");
+		options.put("collectioniter", "true");
+		options.put("commentmonitors", "false");
+		options.put("decodeenumswitch", "true");
+		options.put("decodefinally", "true");
+		options.put("decodelambdas", "true");
+		options.put("decodestringswitch", "true");
+		options.put("dumpclasspath", "false");
+		options.put("eclipse", "true");
+		options.put("elidescala", "false");
+		options.put("forcecondpropagate", "false");
+		options.put("forceexceptionprune", "false");
+		options.put("forcereturningifs", "false");
+		options.put("forcetopsort", "false");
+		options.put("forcetopsortaggress", "false");
+		options.put("forloopaggcapture", "false");
+		options.put("hidebridgemethods", "false");
+		options.put("hidelangimports", "true");
+		options.put("hidelongstrings", "false");
+		options.put("hideutf", "true");
+		options.put("innerclasses", "true");
+		options.put("j14classobj", "false");
+		options.put("labelledblocks", "true");
+		options.put("lenient", "false");
+		options.put("liftconstructorinit", "true");
+		options.put("override", "true");
+		options.put("pullcodecase", "false");
+		options.put("recover", "true");
+		options.put("recovertypeclash", "false");
+		options.put("recovertypehints", "false");
+		options.put("relinkconststring", "true");
+		options.put("removebadgenerics", "true");
+		options.put("removeboilerplate", "true");
+		options.put("removedeadmethods", "true");
+		options.put("removeinnerclasssynthetics", "true");
+		options.put("rename", "false");
+		options.put("renamedupmembers", "false");
+		options.put("renameenumidents", "false");
+		options.put("renameillegalidents", "false");
+		options.put("showinferrable", "false");
+		options.put("silent", "false");
+		options.put("stringbuffer", "false");
+		options.put("stringbuilder", "true");
+		options.put("sugarasserts", "true");
+		options.put("sugarboxing", "true");
+		options.put("sugarenums", "true");
+		options.put("tidymonitors", "true");
+		options.put("usenametable", "true");
+	}
+
+	public static String decompile(ClassNode cn, byte[] b, MethodNode mn) {
+		try {
+			HashMap<String, String> ops = options;
+			ClassFileSource cfs = new ClassFileSource() {
+
+				@Override
+				public void informAnalysisRelativePathDetail(String a, String b) {
+				}
+
+				@Override
+				public String getPossiblyRenamedPath(String path) {
+					return path;
+				}
+
+				@Override
+				public Pair<byte[], String> getClassFileContent(String path) throws IOException {
+					String name = path.substring(0, path.length() - 6);
+					if (name.equals(cn.name)) {
+						return Pair.make(b, name);
+					}
+					return null; // cfr loads unnecessary classes
+				}
+
+				@Override
+				public Collection<String> addJar(String arg0) {
+					throw new RuntimeException();
+				}
+			};
+			PluginRunner runner = new PluginRunner(ops, cfs);
+			if (mn != null) {
+				BaseByteData data = new BaseByteData(b);
+				ClassFile cf = new ClassFile(data, "", initDCState(ops, cfs));
+				Field cpf = Method.class.getDeclaredField("cp");
+				Field descI = Method.class.getDeclaredField("descriptorIndex");
+				descI.setAccessible(true);
+				cpf.setAccessible(true);
+				for (Method m : cf.getMethodByName(mn.name)) {
+					ConstantPool cp = (ConstantPool) cpf.get(m);
+					if (cp.getUTF8Entry(descI.getInt(m)).getValue().equals(mn.desc)) {
+						ToStringDumper tsd = new ToStringDumper();
+						m.dump(tsd, true);
+						return tsd.toString();
+					}
+				}
+			}
+			String decompilation = runner.getDecompilationFor(cn.name);
+			System.gc(); // cfr has a performance bug
+			return decompilation.substring(37); // small hack to remove watermark
+		} catch (Exception e) {
+			e.printStackTrace();
+			StringWriter sw = new StringWriter();
+			PrintWriter pw = new PrintWriter(sw);
+			e.printStackTrace(pw);
+			return sw.toString();
+		}
+	}
+
+	private static DCCommonState initDCState(Map<String, String> optionsMap, ClassFileSource classFileSource) {
+		OptionsImpl options = new OptionsImpl(optionsMap);
+		if (classFileSource == null)
+			classFileSource = new ClassFileSourceImpl(options);
+		DCCommonState dcCommonState = new DCCommonState(options, classFileSource);
+		return dcCommonState;
+	}
+
+	protected Pair<byte[], String> getSystemClass(String name, String path) throws IOException {
+		InputStream is = ClassLoader.getSystemClassLoader().getResourceAsStream(path);
+		if (is != null) {
+			ByteArrayOutputStream baos = new ByteArrayOutputStream();
+			byte[] buffer = new byte[4096];
+			int n;
+			while ((n = is.read(buffer)) > 0) {
+				baos.write(buffer, 0, n);
+			}
+			return Pair.make(baos.toByteArray(), name);
+		}
+		return null;
+	}
+}

src/me/ByteEdit/decompiler/EnumDecompiler.java

@@ -0,0 +1,15 @@
+package me.ByteEdit.decompiler;
+
+public enum EnumDecompiler {
+    BYTEEDIT("ByteEdit"), PROCYON("Procyon"), FERNFLOWER("FernFlower"), JD_GUI("JD-GUI"), CFR("CFR");
+
+    final String name;
+
+    EnumDecompiler(String name){
+        this.name = name;
+    }
+    @Override
+    public String toString() {
+        return name;
+    }
+}

src/me/ByteEdit/decompiler/FernflowerDecompiler.java

@@ -0,0 +1,132 @@
+package me.ByteEdit.decompiler;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.util.HashMap;
+import java.util.jar.Manifest;
+
+import org.jetbrains.java.decompiler.main.Fernflower;
+import org.jetbrains.java.decompiler.main.extern.IBytecodeProvider;
+import org.jetbrains.java.decompiler.main.extern.IFernflowerLogger;
+import org.jetbrains.java.decompiler.main.extern.IResultSaver;
+import org.jetbrains.java.decompiler.struct.ContextUnit;
+import org.jetbrains.java.decompiler.struct.StructClass;
+import org.jetbrains.java.decompiler.struct.StructContext;
+import org.jetbrains.java.decompiler.struct.lazy.LazyLoader;
+import org.objectweb.asm.tree.ClassNode;
+import org.objectweb.asm.tree.MethodNode;
+
+public class FernflowerDecompiler implements IBytecodeProvider, IResultSaver {
+
+	private byte[] bytes;
+	private String returned;
+
+	public static final HashMap<String, Boolean> options = new HashMap<>();
+
+	static {
+		options.put("rbr", true);
+		options.put("rsy", false);
+		options.put("din", true);
+		options.put("dc4", true);
+		options.put("das", true);
+		options.put("hes", true);
+		options.put("hdc", true);
+		options.put("dgs", false);
+		options.put("ner", true);
+		options.put("den", true);
+		options.put("rgn", true);
+		options.put("lit", false);
+		options.put("asc", true);
+		options.put("bto", true);
+		options.put("nns", false);
+		options.put("uto", true);
+		options.put("udv", true);
+		options.put("rer", true);
+		options.put("fdi", true);
+		options.put("ren", false);
+		options.put("inn", true);
+		options.put("lac", false);
+	}
+
+	public String decompile(ClassNode cn, byte[] b, MethodNode mn) {
+		try {
+			// TODO decompile method only
+			this.bytes = b;
+			HashMap<String, Object> map = new HashMap<>();
+			for (String key : options.keySet()) {
+				map.put(key, options.get(key) ? "1" : "0");
+			}
+			Fernflower f = new Fernflower(this, this, map, new IFernflowerLogger() {
+				@Override
+				public void writeMessage(String message, Throwable t) {
+				}
+
+				@Override
+				public void writeMessage(String message, Severity severity) {
+				}
+			});
+			StructContext sc = f.getStructContext();
+			StructClass cl = new StructClass(b, true, sc.getLoader());
+			sc.getClasses().put(cn.name, cl);
+			// instead of loading a file use custom bridge, created a few getters
+			String fakePath = new File("none.class").getAbsolutePath();
+			ContextUnit unit = new ContextUnit(ContextUnit.TYPE_FOLDER, null, fakePath, true, sc.getSaver(),
+					sc.getDecompiledData());
+			sc.getUnits().put(fakePath, unit);
+			unit.addClass(cl, "none.class");
+			sc.getLoader().addClassLink(cn.name, new LazyLoader.Link(LazyLoader.Link.CLASS, fakePath, null));
+
+			f.decompileContext();
+			return returned;
+		} catch (Exception e) {
+			e.printStackTrace();
+			StringWriter sw = new StringWriter();
+			PrintWriter pw = new PrintWriter(sw);
+			e.printStackTrace(pw);
+			return sw.toString();
+		}
+	}
+
+	@Override
+	public byte[] getBytecode(String externalPath, String internalPath) throws IOException {
+		return bytes;
+	}
+
+	// we can ignore most of those methods because we do not want to save the output
+	// as a file
+	@Override
+	public void saveFolder(String path) {
+	}
+
+	@Override
+	public void copyFile(String source, String path, String entryName) {
+	}
+
+	@Override
+	public void saveClassFile(String path, String qualifiedName, String entryName, String content, int[] mapping) {
+		this.returned = content;
+	}
+
+	@Override
+	public void createArchive(String path, String archiveName, Manifest manifest) {
+	}
+
+	@Override
+	public void saveDirEntry(String path, String archiveName, String entryName) {
+	}
+
+	@Override
+	public void copyEntry(String source, String path, String archiveName, String entry) {
+	}
+
+	@Override
+	public void saveClassEntry(String path, String archiveName, String qualifiedName, String entryName,
+			String content) {
+	}
+
+	@Override
+	public void closeArchive(String path, String archiveName) {
+	}
+}

src/me/ByteEdit/decompiler/JDDecompiler.java

@@ -0,0 +1,126 @@
+package me.ByteEdit.decompiler;
+
+import me.ByteEdit.main.Main;
+import org.jd.core.v1.ClassFileToJavaSourceDecompiler;
+import org.jd.core.v1.api.loader.Loader;
+import org.jd.core.v1.api.loader.LoaderException;
+import org.jd.core.v1.api.printer.Printer;
+import org.objectweb.asm.ClassWriter;
+import org.objectweb.asm.tree.ClassNode;
+
+
+public class JDDecompiler implements Loader, Printer {
+	
+	public String decompile(ClassNode cl) {
+		ClassFileToJavaSourceDecompiler decompiler = new ClassFileToJavaSourceDecompiler();
+		try {
+			decompiler.decompile(this, this, cl.name);
+		} catch (Throwable e) {
+			e.printStackTrace();
+			String str = e.getClass().getName() + " - " + e.getMessage() + System.lineSeparator();
+			for(int i = 0; i < e.getStackTrace().length; i++) {
+				str += e.getStackTrace()[i].toString() + System.lineSeparator();
+			}
+			return str;
+		}
+		return toString();
+	}
+	
+	@Override
+	public boolean canLoad(String internalName) {
+		return Main.classNodes.containsKey(internalName + ".class");
+	}
+
+	@Override
+	public byte[] load(String internalName) throws LoaderException {
+		ClassNode cl = Main.classNodes.get(internalName + ".class");
+		ClassWriter cw = new ClassWriter(0);
+		cl.accept(cw);
+		return cw.toByteArray();
+	}
+
+	protected static final String TAB = "  ";
+	protected static final String NEWLINE = "\n";
+
+	protected int indentationCount = 0;
+	protected StringBuilder sb = new StringBuilder();
+
+	@Override
+	public String toString() {
+		return sb.toString();
+	}
+
+	@Override
+	public void start(int maxLineNumber, int majorVersion, int minorVersion) {
+	}
+
+	@Override
+	public void end() {
+	}
+
+	@Override
+	public void printText(String text) {
+		sb.append(text);
+	}
+
+	@Override
+	public void printNumericConstant(String constant) {
+		sb.append(constant);
+	}
+
+	@Override
+	public void printStringConstant(String constant, String ownerInternalName) {
+		sb.append(constant);
+	}
+
+	@Override
+	public void printKeyword(String keyword) {
+		sb.append(keyword);
+	}
+
+	@Override
+	public void printDeclaration(int type, String internalTypeName, String name, String descriptor) {
+		sb.append(name);
+	}
+
+	@Override
+	public void printReference(int type, String internalTypeName, String name, String descriptor,
+			String ownerInternalName) {
+		sb.append(name);
+	}
+
+	@Override
+	public void indent() {
+		this.indentationCount++;
+	}
+
+	@Override
+	public void unindent() {
+		this.indentationCount--;
+	}
+
+	@Override
+	public void startLine(int lineNumber) {
+		for (int i = 0; i < indentationCount; i++)
+			sb.append(TAB);
+	}
+
+	@Override
+	public void endLine() {
+		sb.append(NEWLINE);
+	}
+
+	@Override
+	public void extraLine(int count) {
+		while (count-- > 0)
+			sb.append(NEWLINE);
+	}
+
+	@Override
+	public void startMarker(int type) {
+	}
+
+	@Override
+	public void endMarker(int type) {
+	}
+}

src/me/ByteEdit/decompiler/ProcyonDecompiler.java

@@ -0,0 +1,71 @@
+package me.ByteEdit.decompiler;
+
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.lang.reflect.Field;
+
+import org.objectweb.asm.tree.ClassNode;
+import org.objectweb.asm.tree.MethodNode;
+
+import com.strobel.assembler.InputTypeLoader;
+import com.strobel.assembler.metadata.Buffer;
+import com.strobel.assembler.metadata.ITypeLoader;
+import com.strobel.assembler.metadata.MetadataSystem;
+import com.strobel.assembler.metadata.TypeDefinition;
+import com.strobel.assembler.metadata.TypeReference;
+import com.strobel.decompiler.DecompilationOptions;
+import com.strobel.decompiler.DecompilerSettings;
+import com.strobel.decompiler.PlainTextOutput;
+
+public class ProcyonDecompiler {
+
+	public static String decompile(ClassNode cn, byte[] b, MethodNode mn) {
+		try {
+			// TODO decompile method only
+			DecompilerSettings settings = new DecompilerSettings();
+			try {
+				for (Field f : settings.getClass().getDeclaredFields()) {
+					if (f.getType() == boolean.class) {
+						f.setAccessible(true);
+						f.setBoolean(settings, true);
+					}
+				}
+			} catch (Throwable t) {
+				t.printStackTrace();
+			}
+			settings.setShowSyntheticMembers(true);
+			MetadataSystem metadataSystem = new MetadataSystem(new ITypeLoader() {
+				private InputTypeLoader backLoader = new InputTypeLoader();
+
+				@Override
+				public boolean tryLoadType(String s, Buffer buffer) {
+					if (s.equals(cn.name)) {
+						buffer.putByteArray(b, 0, b.length);
+						buffer.position(0);
+						return true;
+					} else {
+						return backLoader.tryLoadType(s, buffer);
+					}
+				}
+			});
+			TypeReference type = metadataSystem.lookupType(cn.name);
+			DecompilationOptions decompilationOptions = new DecompilationOptions();
+			decompilationOptions.setSettings(DecompilerSettings.javaDefaults());
+			decompilationOptions.setFullDecompilation(true);
+			TypeDefinition resolvedType = null;
+			if (type == null || ((resolvedType = type.resolve()) == null)) {
+				return "error";
+			}
+			StringWriter stringwriter = new StringWriter();
+			settings.getLanguage().decompileType(resolvedType, new PlainTextOutput(stringwriter), decompilationOptions);
+			String decompiledSource = stringwriter.toString();
+			return decompiledSource;
+		} catch (Exception e) {
+			e.printStackTrace();
+			StringWriter sw = new StringWriter();
+			PrintWriter pw = new PrintWriter(sw);
+			e.printStackTrace(pw);
+			return sw.toString();
+		}
+	}
+}

src/me/ByteEdit/decompiler/SingleThreadedExecutor.java

@@ -0,0 +1,27 @@
+package me.ByteEdit.decompiler;
+
+import java.util.concurrent.LinkedBlockingQueue;
+
+public class SingleThreadedExecutor {
+
+
+    private static LinkedBlockingQueue<Runnable> queue = new LinkedBlockingQueue<>();
+
+    private static final Thread thread = new Thread(() -> {
+        while(true){
+            try {
+                queue.take().run();
+            } catch (Throwable e) {
+                e.printStackTrace();
+            }
+        }
+    }, "Single");
+    static {
+        thread.start();
+    }
+
+
+    public static void execute(Runnable r){
+        queue.add(r);
+    }
+}

src/me/ByteEdit/edit/Disassembler.java

@@ -29,10 +29,12 @@ import java.util.concurrent.Future;
 import java.util.concurrent.FutureTask;
 import java.util.concurrent.atomic.AtomicInteger;
 
-import org.objectweb.asm.Handle;
-import org.objectweb.asm.Label;
-import org.objectweb.asm.Opcodes;
-import org.objectweb.asm.Type;
+import com.strobel.decompiler.Decompiler;
+import me.ByteEdit.decompiler.CFRDecompiler;
+import me.ByteEdit.decompiler.FernflowerDecompiler;
+import me.ByteEdit.decompiler.JDDecompiler;
+import me.ByteEdit.decompiler.ProcyonDecompiler;
+import org.objectweb.asm.*;
 import org.objectweb.asm.tree.AbstractInsnNode;
 import org.objectweb.asm.tree.AnnotationNode;
 import org.objectweb.asm.tree.ClassNode;
@@ -98,10 +100,34 @@ public class Disassembler {
 	}
 
 	public static DisassembleTuple disassemble(ClassNode classNode, Object nodeToFind) {
+
 		if (classNode == null) {
 			return new DisassembleTuple("ClassNode is null! This is not a valid java class file!");
 		}
+
+
+
+
 		try {
+			System.out.println(Main.decompiler);
+			ClassWriter classWriter = new ClassWriter(0);
+			switch (Main.decompiler){
+				case PROCYON:
+					classNode.accept(classWriter);
+					return new DisassembleTuple(ProcyonDecompiler.decompile(classNode, classWriter.toByteArray(), null));
+				case FERNFLOWER:
+					classNode.accept(classWriter);
+					return new DisassembleTuple(new FernflowerDecompiler().decompile(classNode, classWriter.toByteArray(), null));
+				case JD_GUI:
+					classNode.accept(classWriter);
+					return new DisassembleTuple(new JDDecompiler().decompile(classNode));
+				case CFR:
+					classNode.accept(classWriter);
+					return new DisassembleTuple(CFRDecompiler.decompile(classNode, classWriter.toByteArray(), null));
+				default:
+					break;
+			}
+
 			HugeStrings hs = new HugeStrings();
 			AtomicInteger lineFound = new AtomicInteger(-1);
 			StringContext ctx = new StringContext(18);

src/me/ByteEdit/edit/TypeOpenBox.java

@@ -3,6 +3,7 @@ package me.ByteEdit.edit;
 import java.awt.Toolkit;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
+import java.util.concurrent.TimeUnit;
 
 import javax.swing.DefaultListModel;
 import javax.swing.JFrame;
@@ -18,6 +19,7 @@ import javax.swing.event.DocumentListener;
 import javax.swing.event.ListSelectionEvent;
 import javax.swing.event.ListSelectionListener;
 
+import me.ByteEdit.decompiler.SingleThreadedExecutor;
 import me.ByteEdit.main.Main;
 
 public class TypeOpenBox extends JFrame {
@@ -51,7 +53,8 @@ public class TypeOpenBox extends JFrame {
 			public void valueChanged(ListSelectionEvent e) {
 				String val = list.getSelectedValue();
 				if (val != null && !val.equals(Main.currentNodeName)) {
-					Main.selectFile(val);
+
+					SingleThreadedExecutor.execute( () -> Main.selectFile(val));
 				}
 			}
 		});

src/me/ByteEdit/main/Main.java

@@ -1,11 +1,6 @@
 package me.ByteEdit.main;
 
-import java.awt.Component;
-import java.awt.EventQueue;
-import java.awt.Font;
-import java.awt.GridLayout;
-import java.awt.HeadlessException;
-import java.awt.Toolkit;
+import java.awt.*;
 import java.awt.datatransfer.DataFlavor;
 import java.awt.datatransfer.Transferable;
 import java.awt.dnd.DropTarget;
@@ -13,11 +8,7 @@ import java.awt.dnd.DropTargetDragEvent;
 import java.awt.dnd.DropTargetDropEvent;
 import java.awt.dnd.DropTargetEvent;
 import java.awt.dnd.DropTargetListener;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-import java.awt.event.KeyAdapter;
-import java.awt.event.KeyEvent;
-import java.awt.event.MouseEvent;
+import java.awt.event.*;
 import java.io.BufferedReader;
 import java.io.ByteArrayOutputStream;
 import java.io.File;
@@ -25,14 +16,13 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.StringReader;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.Enumeration;
-import java.util.HashMap;
+import java.util.*;
 import java.util.List;
 import java.util.Map.Entry;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ThreadFactory;
+import java.util.concurrent.TimeUnit;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
@@ -40,22 +30,7 @@ import java.util.zip.ZipEntry;
 import java.util.zip.ZipFile;
 import java.util.zip.ZipOutputStream;
 
-import javax.swing.ButtonGroup;
-import javax.swing.JCheckBoxMenuItem;
-import javax.swing.JComponent;
-import javax.swing.JDialog;
-import javax.swing.JFileChooser;
-import javax.swing.JFrame;
-import javax.swing.JMenu;
-import javax.swing.JMenuBar;
-import javax.swing.JMenuItem;
-import javax.swing.JOptionPane;
-import javax.swing.JPanel;
-import javax.swing.JRadioButtonMenuItem;
-import javax.swing.JScrollPane;
-import javax.swing.JSplitPane;
-import javax.swing.JTree;
-import javax.swing.KeyStroke;
+import javax.swing.*;
 import javax.swing.border.EmptyBorder;
 import javax.swing.event.TreeExpansionEvent;
 import javax.swing.event.TreeExpansionListener;
@@ -69,6 +44,8 @@ import javax.swing.tree.TreeNode;
 import javax.swing.tree.TreePath;
 import javax.swing.tree.TreeSelectionModel;
 
+import me.ByteEdit.decompiler.EnumDecompiler;
+import me.ByteEdit.decompiler.SingleThreadedExecutor;
 import org.fife.ui.autocomplete.AutoCompletion;
 import org.fife.ui.autocomplete.BasicCompletion;
 import org.fife.ui.autocomplete.CompletionProvider;
@@ -104,6 +81,8 @@ import me.ByteEdit.utils.UnicodeUtils;
 
 public class Main extends JFrame {
 
+
+
 	public static Main INSTANCE;
 	private JPanel contentPane;
 	private volatile boolean isChangingFile;
@@ -526,7 +505,8 @@ public class Main extends JFrame {
 			public void valueChanged(TreeSelectionEvent e) {
 				synchronized (treeLock) {
 					if (!isChangingFile) {
-						selectFile(((ByteEditTreeNode) e.getPath().getLastPathComponent()).path);
+
+						SingleThreadedExecutor.execute( () -> selectFile(((ByteEditTreeNode) e.getPath().getLastPathComponent()).path));
 					}
 				}
 			}
@@ -700,25 +680,30 @@ public class Main extends JFrame {
 			@Override
 			public void keyReleased(KeyEvent e) {
 				if (e.getKeyCode() == 116 && currentNodeName != null) { // F5
-					try {
-						ClassNode classNode = classNodes.get(currentNodeName);
-						int prev = txtByteEditView.getCaretPosition();
-						String dis = Disassembler.disassemble(classNode);
-						String substr = currentNodeName.substring(0, currentNodeName.length() - 6);
-						for (String key : Main.classNodes.keySet()) {
-							if (key.contains("$")) {
-								String[] split = key.split("\\$");
-								if (split[0].equals(substr)) {
-									dis += "\n" + Disassembler.disassemble(classNodes.get(key));
+
+					SingleThreadedExecutor.execute( () -> {
+						try {
+							ClassNode classNode = classNodes.get(currentNodeName);
+							int prev = txtByteEditView.getCaretPosition();
+							String dis = Disassembler.disassemble(classNode);
+							String substr = currentNodeName.substring(0, currentNodeName.length() - 6);
+							synchronized (Main.classNodes){
+								for (String key : Main.classNodes.keySet()) {
+									if (key.contains("$")) {
+										String[] split = key.split("\\$");
+										if (split[0].equals(substr)) {
+											dis += "\n" + Disassembler.disassemble(classNodes.get(key));
+										}
+									}
 								}
 							}
+							txtByteEditView.setText(dis);
+							if (dis.length() > prev)
+								txtByteEditView.setCaretPosition(prev);
+						} catch (Exception e2) {
+							e2.printStackTrace();
 						}
-						txtByteEditView.setText(dis);
-						if (dis.length() > prev)
-							txtByteEditView.setCaretPosition(prev);
-					} catch (Exception e2) {
-						e2.printStackTrace();
-					}
+					});
 				}
 			}
 		});
@@ -774,13 +759,66 @@ public class Main extends JFrame {
 		txtByteEditView.setCodeFoldingEnabled(true);
 		scrollPane_ByteEdit = new RTextScrollPane();
 		ThemeManager.registerTextArea(txtByteEditView);
+		JPanel panel = new JPanel(new BorderLayout());
 
-		splitPane.setRightComponent(scrollPane_ByteEdit);
+		panel.add(scrollPane_ByteEdit, BorderLayout.CENTER);
+		final JComboBox<String> decompilerMode = new JComboBox<>();
+		DefaultComboBoxModel model = new DefaultComboBoxModel();
+		Arrays.stream(EnumDecompiler.values()).forEach(model::addElement);
+		decompilerMode.setModel(model);
+		decompilerMode.addItemListener(new ItemListener() {
+			@Override
+			public void itemStateChanged(ItemEvent e) {
+
+				SingleThreadedExecutor.execute( () -> {
+					decompiler = (EnumDecompiler) e.getItem();
+					try {
+						txtByteEditView.setSyntaxEditingStyle(decompiler == EnumDecompiler.BYTEEDIT ? SyntaxConstants.SYNTAX_STYLE_JAVA_DISASSEMBLE : SyntaxConstants.SYNTAX_STYLE_JAVA);
+					} catch (Throwable t){}
+					txtByteEditView.setEditable(decompiler == EnumDecompiler.BYTEEDIT);
+					if (currentNodeName != null) {
+
+
+						try {
+							ClassNode classNode = classNodes.get(currentNodeName);
+							int prev = txtByteEditView.getCaretPosition();
+							String dis = Disassembler.disassemble(classNode);
+							String substr = currentNodeName.substring(0, currentNodeName.length() - 6);
+							for (String key : Main.classNodes.keySet()) {
+								if (key.contains("$")) {
+									String[] split = key.split("\\$");
+									if (split[0].equals(substr)) {
+										dis += "\n" + Disassembler.disassemble(classNodes.get(key));
+									}
+								}
+							}
+							txtByteEditView.setText(dis);
+							if (dis.length() > prev)
+								txtByteEditView.setCaretPosition(prev);
+						} catch (Exception e2) {
+							e2.printStackTrace();
+						}
+
+
+					}
+
+				});
+			}
+		});
+		panel.add(decompilerMode, BorderLayout.NORTH);
+
+
+
+		splitPane.setRightComponent(panel);
 		scrollPane_ByteEdit.setViewportView(txtByteEditView);
 		scrollPane_ByteEdit.setLineNumbersEnabled(true);
 		scrollPane_ByteEdit.setFoldIndicatorEnabled(true);
 	}
 
+
+
+	public static EnumDecompiler decompiler = EnumDecompiler.BYTEEDIT;
+
 	private final Pattern jumpableInstructionPattern = Pattern.compile("^\t\t(?!//|\t+).+ .+");
 
 	public void goToSelected() throws BadLocationException {
@@ -809,10 +847,20 @@ public class Main extends JFrame {
 					while (classNode.outerClass != null) {
 						classNode = classNodes.get(getFullName(classNode.outerClass));
 					}
-					int lineFound = selectFileWithSearch(getFullName(classNode.name), mn);
-					if (lineFound != -1) {
-						Main.txtByteEditView.setCaretPosition(Main.txtByteEditView.getLineStartOffset(lineFound));
-					}
+
+
+					ClassNode finalClassNode = classNode;
+					SingleThreadedExecutor.execute( () -> {
+						int lineFound = selectFileWithSearch(getFullName(finalClassNode.name), mn);
+						if (lineFound != -1) {
+							try {
+								Main.txtByteEditView.setCaretPosition(Main.txtByteEditView.getLineStartOffset(lineFound));
+							} catch (BadLocationException e) {
+								e.printStackTrace();
+							}
+						}
+					});
+
 					break;
 				}
 			}
@@ -823,7 +871,8 @@ public class Main extends JFrame {
 			if (classNode == null) {
 				return;
 			}
-			selectFile(getFullName(className));
+
+			SingleThreadedExecutor.execute( () -> selectFile(getFullName(className)));
 		} else if (line.startsWith("getstatic ") || line.startsWith("putstatic ") || line.startsWith("getfield ")
 				|| line.startsWith("putfield ")) {
 			String[] split = line.split(" ");
@@ -841,10 +890,20 @@ public class Main extends JFrame {
 					while (classNode.outerClass != null) {
 						classNode = classNodes.get(getFullName(classNode.outerClass));
 					}
-					int lineFound = selectFileWithSearch(getFullName(classNode.name), fn);
-					if (lineFound != -1) {
-						Main.txtByteEditView.setCaretPosition(Main.txtByteEditView.getLineStartOffset(lineFound));
-					}
+
+					ClassNode finalClassNode = classNode;
+					ClassNode finalClassNode1 = classNode;
+					SingleThreadedExecutor.execute( () -> {
+						int lineFound = selectFileWithSearch(getFullName(finalClassNode1.name), fn);
+						if (lineFound != -1) {
+							try {
+								Main.txtByteEditView.setCaretPosition(Main.txtByteEditView.getLineStartOffset(lineFound));
+							} catch (BadLocationException e) {
+								e.printStackTrace();
+							}
+						}
+					});
+
 					break;
 				}
 			}

src/org/fife/ui/rsyntaxtextarea/DefaultTokenFactory.java

@@ -102,6 +102,7 @@ class DefaultTokenFactory implements TokenFactory {
 	@Override
 	public TokenImpl createToken(final char[] line, final int beg, final int end, final int startOffset,
 			final int type) {
+	//	if(tokenList.length - 1 > currentFreeToken) return null;
 		TokenImpl token = tokenList[currentFreeToken];
 		token.set(line, beg, end, startOffset, type);
 		currentFreeToken++;

src/org/fife/ui/rsyntaxtextarea/TokenMakerBase.java

@@ -108,6 +108,7 @@ public abstract class TokenMakerBase implements TokenMaker {
 			currentToken = firstToken; // previous token is still null.
 		} else {
 			TokenImpl next = tokenFactory.createToken(array, start, end, startOffset, tokenType);
+			if(currentToken == null || next == null ) return;
 			currentToken.setNextToken(next);
 			previousToken = currentToken;
 			currentToken = next;

src/org/fife/ui/rsyntaxtextarea/modes/JavaTokenMaker.java

@@ -3184,7 +3184,9 @@ public class JavaTokenMaker extends AbstractJFlexCTokenMaker {
 						return null;
 					}
 				} else {
-					zzScanError(ZZ_NO_MATCH);
+					//zzScanError(ZZ_NO_MATCH);
+					return null;
+
 				}
 			}
 		}