fix(cli): don't print stacktrace for incorrect options (#2140)

Author: skylot

jadx-cli/src/main/java/jadx/cli/JadxCLIArgs.java

@@ -29,7 +29,7 @@
 import jadx.api.args.ResourceNameSource;
 import jadx.api.args.UserRenamesMappingsMode;
 import jadx.core.deobf.conditions.DeobfWhitelist;
-import jadx.core.utils.exceptions.JadxException;
+import jadx.core.utils.exceptions.JadxArgsValidateException;
 import jadx.core.utils.files.FileUtils;
 
 public class JadxCLIArgs {
@@ -287,14 +287,13 @@ private boolean process(JCommanderWrapper<JadxCLIArgs> jcw) {
 			System.out.println(JadxDecompiler.getVersion());
 			return false;
 		}
-		try {
-			if (threadsCount <= 0) {
-				throw new JadxException("Threads count must be positive, got: " + threadsCount);
+		if (threadsCount <= 0) {
+			throw new JadxArgsValidateException("Threads count must be positive, got: " + threadsCount);
+		}
+		for (String fileName : files) {
+			if (fileName.startsWith("-")) {
+				throw new JadxArgsValidateException("Unknown option: " + fileName);
 			}
-		} catch (JadxException e) {
-			System.err.println("ERROR: " + e.getMessage());
-			jcw.printUsage();
-			return false;
 		}
 		return true;
 	}
@@ -559,8 +558,8 @@ public Set<RenameEnum> convert(String value) {
 			for (String s : value.split(",")) {
 				try {
 					set.add(RenameEnum.valueOf(s.trim().toUpperCase(Locale.ROOT)));
-				} catch (IllegalArgumentException e) {
-					throw new IllegalArgumentException(
+				} catch (Exception e) {
+					throw new JadxArgsValidateException(
 							'\'' + s + "' is unknown for parameter " + paramName
 									+ ", possible values are " + enumValuesString(RenameEnum.values()));
 				}
@@ -625,7 +624,7 @@ public E convert(String value) {
 			try {
 				return parse.apply(stringAsEnumName(value));
 			} catch (Exception e) {
-				throw new IllegalArgumentException(
+				throw new JadxArgsValidateException(
 						'\'' + value + "' is unknown, possible values are: " + enumValuesString(values.get()));
 			}
 		}

jadx-cli/src/main/java/jadx/cli/JadxCLICommands.java

@@ -7,6 +7,7 @@
 
 import jadx.cli.commands.CommandPlugins;
 import jadx.cli.commands.ICommand;
+import jadx.core.utils.exceptions.JadxArgsValidateException;
 
 public class JadxCLICommands {
 	private static final Map<String, ICommand> COMMANDS_MAP = new TreeMap<>();
@@ -26,7 +27,8 @@ public static void append(JCommander.Builder builder) {
 	public static boolean process(JCommanderWrapper<?> jcw, JCommander jc, String parsedCommand) {
 		ICommand command = COMMANDS_MAP.get(parsedCommand);
 		if (command == null) {
-			throw new IllegalArgumentException("Unknown command: " + parsedCommand);
+			throw new JadxArgsValidateException("Unknown command: " + parsedCommand
+					+ ". Expected one of: " + COMMANDS_MAP.keySet());
 		}
 		JCommander subCommander = jc.getCommands().get(parsedCommand);
 		command.process(jcw, subCommander);

jadx-cli/src/main/java/jadx/cli/SingleClassMode.java

@@ -12,6 +12,7 @@
 import jadx.core.dex.attributes.AFlag;
 import jadx.core.dex.nodes.ClassNode;
 import jadx.core.dex.visitors.SaveCode;
+import jadx.core.utils.exceptions.JadxArgsValidateException;
 import jadx.core.utils.exceptions.JadxRuntimeException;
 import jadx.core.utils.files.FileUtils;
 
@@ -33,10 +34,10 @@ public static boolean process(JadxDecompiler jadx, JadxCLIArgs cliArgs) {
 						.findFirst().orElse(null);
 			}
 			if (clsForProcess == null) {
-				throw new JadxRuntimeException("Input class not found: " + singleClass);
+				throw new JadxArgsValidateException("Input class not found: " + singleClass);
 			}
 			if (clsForProcess.contains(AFlag.DONT_GENERATE)) {
-				throw new JadxRuntimeException("Input class can't be saved by current jadx settings (marked as DONT_GENERATE)");
+				throw new JadxArgsValidateException("Input class can't be saved by current jadx settings (marked as DONT_GENERATE)");
 			}
 			if (clsForProcess.isInner()) {
 				clsForProcess = clsForProcess.getTopParentClass();
@@ -52,7 +53,7 @@ public static boolean process(JadxDecompiler jadx, JadxCLIArgs cliArgs) {
 			if (size == 1) {
 				clsForProcess = classes.get(0);
 			} else {
-				throw new JadxRuntimeException("Found " + size + " classes, single class output can't be used");
+				throw new JadxArgsValidateException("Found " + size + " classes, single class output can't be used");
 			}
 		}
 		ICodeInfo codeInfo;

jadx-cli/src/test/java/jadx/cli/RenameConverterTest.java

@@ -7,6 +7,7 @@
 
 import jadx.api.JadxArgs.RenameEnum;
 import jadx.cli.JadxCLIArgs.RenameConverter;
+import jadx.core.utils.exceptions.JadxArgsValidateException;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertThrows;
@@ -38,7 +39,7 @@ public void none() {
 
 	@Test
 	public void wrong() {
-		IllegalArgumentException thrown = assertThrows(IllegalArgumentException.class,
+		JadxArgsValidateException thrown = assertThrows(JadxArgsValidateException.class,
 				() -> converter.convert("wrong"),
 				"Expected convert() to throw, but it didn't");
 

jadx-core/src/main/java/jadx/api/JadxArgsValidator.java

@@ -28,12 +28,6 @@ private static void checkInputFiles(JadxDecompiler jadx, JadxArgs args) {
 		if (inputFiles.isEmpty() && jadx.getCustomCodeLoaders().isEmpty()) {
 			throw new JadxArgsValidateException("Please specify input file");
 		}
-		for (File inputFile : inputFiles) {
-			String fileName = inputFile.getName();
-			if (fileName.startsWith("--")) {
-				throw new JadxArgsValidateException("Unknown argument: " + fileName);
-			}
-		}
 		for (File file : inputFiles) {
 			checkFile(file);
 		}