refactor: make ErrorsCounter non static

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

 package jadx.cli;
 
 import jadx.api.JadxDecompiler;
-import jadx.core.utils.ErrorsCounter;
 import jadx.core.utils.exceptions.JadxException;
 
 import java.io.File;
@@ -12,33 +11,29 @@ import org.slf4j.LoggerFactory;
 public class JadxCLI {
 	private static final Logger LOG = LoggerFactory.getLogger(JadxCLI.class);
 
-	public static void main(String[] args) {
+	public static void main(String[] args) throws JadxException {
 		try {
 			JadxCLIArgs jadxArgs = new JadxCLIArgs();
 			if (processArgs(jadxArgs, args)) {
 				processAndSave(jadxArgs);
 			}
-		} catch (JadxException e) {
-			LOG.error(e.getMessage());
+		} catch (Throwable e) {
+			LOG.error("jadx error: " + e.getMessage(), e);
 			System.exit(1);
 		}
 	}
 
 	static void processAndSave(JadxCLIArgs jadxArgs) throws JadxException {
-		try {
-			JadxDecompiler jadx = new JadxDecompiler(jadxArgs);
-			jadx.loadFiles(jadxArgs.getInput());
-			jadx.setOutputDir(jadxArgs.getOutDir());
-			jadx.save();
-		} catch (Throwable e) {
-			throw new JadxException("jadx error: " + e.getMessage(), e);
+		JadxDecompiler jadx = new JadxDecompiler(jadxArgs);
+		jadx.setOutputDir(jadxArgs.getOutDir());
+		jadx.loadFiles(jadxArgs.getInput());
+		jadx.save();
+		if (jadx.getErrorsCount() != 0) {
+			jadx.printErrorsReport();
+			LOG.error("finished with errors");
+		} else {
+			LOG.info("done");
 		}
-		if (ErrorsCounter.getErrorCount() != 0) {
-			ErrorsCounter.printReport();
-			throw new JadxException("finished with errors");
-		}
-		LOG.info("done");
-
 	}
 
 	static boolean processArgs(JadxCLIArgs jadxArgs, String[] args) throws JadxException {

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

 package jadx.cli;
 
 import jadx.api.IJadxArgs;
-import jadx.core.Consts;
+import jadx.api.JadxDecompiler;
 import jadx.core.utils.exceptions.JadxException;
 
 import java.io.File;
@@ -105,7 +105,7 @@ public final class JadxCLIArgs implements IJadxArgs {
 		// print usage in not sorted fields order (by default its sorted by description)
 		PrintStream out = System.out;
 		out.println();
-		out.println("jadx - dex to java decompiler, version: " + Consts.JADX_VERSION);
+		out.println("jadx - dex to java decompiler, version: " + JadxDecompiler.getVersion());
 		out.println();
 		out.println("usage: jadx [options] " + jc.getMainParameterDescription());
 		out.println("options:");
@@ -148,6 +148,7 @@ public final class JadxCLIArgs implements IJadxArgs {
 		return input;
 	}
 
+	@Override
 	public File getOutDir() {
 		return outputDir;
 	}

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

 package jadx.api;
 
+import java.io.File;
+
 public class DefaultJadxArgs implements IJadxArgs {
 
+	@Override
+	public File getOutDir() {
+		return new File("jadx-output");
+	}
+
 	@Override
 	public int getThreadsCount() {
 		return Runtime.getRuntime().availableProcessors();

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

 package jadx.api;
 
+import java.io.File;
+
 public interface IJadxArgs {
+	File getOutDir();
+
 	int getThreadsCount();
 
 	boolean isCFGOutput();

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

@@ -7,7 +7,6 @@ import jadx.core.dex.nodes.ClassNode;
 import jadx.core.dex.nodes.RootNode;
 import jadx.core.dex.visitors.IDexTreeVisitor;
 import jadx.core.dex.visitors.SaveCode;
-import jadx.core.utils.ErrorsCounter;
 import jadx.core.utils.exceptions.DecodeException;
 import jadx.core.utils.exceptions.JadxException;
 import jadx.core.utils.exceptions.JadxRuntimeException;
@@ -57,12 +56,13 @@ public final class JadxDecompiler {
 	private List<JavaClass> classes;
 
 	public JadxDecompiler() {
-		this.args = new DefaultJadxArgs();
-		init();
+		this(new DefaultJadxArgs());
 	}
 
 	public JadxDecompiler(IJadxArgs jadxArgs) {
 		this.args = jadxArgs;
+		this.outDir = jadxArgs.getOutDir();
+		reset();
 		init();
 	}
 
@@ -72,17 +72,20 @@ public final class JadxDecompiler {
 	}
 
 	void init() {
-		reset();
 		if (outDir == null) {
-			outDir = new File("jadx-output");
+			outDir = new DefaultJadxArgs().getOutDir();
 		}
 		this.passes = Jadx.getPassesList(args, outDir);
 	}
 
 	void reset() {
 		ClassInfo.clearCache();
-		ErrorsCounter.reset();
 		classes = null;
+		root = null;
+	}
+
+	public static String getVersion() {
+		return Jadx.getVersion();
 	}
 
 	public void loadFile(File file) throws JadxException {
@@ -182,7 +185,17 @@ public final class JadxDecompiler {
 	}
 
 	public int getErrorsCount() {
-		return ErrorsCounter.getErrorCount();
+		if (root == null) {
+			return 0;
+		}
+		return root.getErrorsCounter().getErrorCount();
+	}
+
+	public void printErrorsReport() {
+		if (root == null) {
+			return;
+		}
+		root.getErrorsCounter().printReport();
 	}
 
 	void parse() throws DecodeException {
@@ -214,6 +227,6 @@ public final class JadxDecompiler {
 
 	@Override
 	public String toString() {
-		return "jadx decompiler";
+		return "jadx decompiler " + getVersion();
 	}
 }

jadx-core/src/main/java/jadx/core/Consts.java

 package jadx.core;
 
 public class Consts {
-	public static final String JADX_VERSION = Jadx.getVersion();
-
 	public static final boolean DEBUG = false;
 
 	public static final String CLASS_OBJECT = "java.lang.Object";

jadx-core/src/main/java/jadx/core/codegen/NameGen.java

@@ -172,7 +172,7 @@ public class NameGen {
 		}
 	}
 
-	public static String getAliasForObject(String name) {
+	private static String getAliasForObject(String name) {
 		return OBJ_ALIAS.get(name);
 	}
 

jadx-core/src/main/java/jadx/core/dex/nodes/RootNode.java

@@ -3,6 +3,7 @@ package jadx.core.dex.nodes;
 import jadx.core.clsp.ClspGraph;
 import jadx.core.dex.info.ClassInfo;
 import jadx.core.dex.instructions.args.ArgType;
+import jadx.core.utils.ErrorsCounter;
 import jadx.core.utils.exceptions.DecodeException;
 import jadx.core.utils.files.InputFile;
 
@@ -14,6 +15,7 @@ import java.util.Map;
 
 public class RootNode {
 	private final Map<String, ClassNode> names = new HashMap<String, ClassNode>();
+	private final ErrorsCounter errorsCounter = new ErrorsCounter();
 	private List<DexNode> dexNodes;
 
 	public void load(List<InputFile> dexFiles) throws DecodeException {
@@ -101,4 +103,8 @@ public class RootNode {
 		String fullName = cls.getFullName();
 		return searchClassByName(fullName);
 	}
+
+	public ErrorsCounter getErrorsCounter() {
+		return errorsCounter;
+	}
 }

jadx-core/src/main/java/jadx/core/utils/ErrorsCounter.java

@@ -20,20 +20,20 @@ import org.slf4j.LoggerFactory;
 public class ErrorsCounter {
 	private static final Logger LOG = LoggerFactory.getLogger(ErrorsCounter.class);
 
-	private static final Set<Object> ERROR_NODES = new HashSet<Object>();
-	private static int errorsCount;
+	private final Set<Object> errorNodes = new HashSet<Object>();
+	private int errorsCount;
 
-	public static int getErrorCount() {
+	public int getErrorCount() {
 		return errorsCount;
 	}
 
-	public static void reset() {
-		ERROR_NODES.clear();
+	public void reset() {
+		errorNodes.clear();
 		errorsCount = 0;
 	}
 
-	private static void addError(IAttributeNode node, String msg, Throwable e) {
-		ERROR_NODES.add(node);
+	private void addError(IAttributeNode node, String msg, Throwable e) {
+		errorNodes.add(node);
 		errorsCount++;
 
 		if (e != null) {
@@ -53,13 +53,13 @@ public class ErrorsCounter {
 
 	public static String classError(ClassNode cls, String errorMsg, Throwable e) {
 		String msg = formatErrorMsg(cls, errorMsg);
-		addError(cls, msg, e);
+		cls.dex().root().getErrorsCounter().addError(cls, msg, e);
 		return msg;
 	}
 
 	public static String methodError(MethodNode mth, String errorMsg, Throwable e) {
 		String msg = formatErrorMsg(mth, errorMsg);
-		addError(mth, msg, e);
+		mth.dex().root().getErrorsCounter().addError(mth, msg, e);
 		return msg;
 	}
 
@@ -67,10 +67,10 @@ public class ErrorsCounter {
 		return methodError(mth, errorMsg, null);
 	}
 
-	public static void printReport() {
+	public void printReport() {
 		if (getErrorCount() > 0) {
 			LOG.error(getErrorCount() + " errors occured in following nodes:");
-			List<Object> nodes = new ArrayList<Object>(ERROR_NODES);
+			List<Object> nodes = new ArrayList<Object>(errorNodes);
 			Collections.sort(nodes, new Comparator<Object>() {
 				@Override
 				public int compare(Object o1, Object o2) {
@@ -92,7 +92,7 @@ public class ErrorsCounter {
 		return msg + " in method: " + mth;
 	}
 
-	private static String formatException(Throwable e) {
+	private String formatException(Throwable e) {
 		if (e == null || e.getMessage() == null) {
 			return "";
 		} else {
@@ -100,11 +100,11 @@ public class ErrorsCounter {
 		}
 	}
 
-	public static String formatErrorMsg(ClassNode cls, String msg, Throwable e) {
+	public String formatErrorMsg(ClassNode cls, String msg, Throwable e) {
 		return formatErrorMsg(cls, msg) + formatException(e);
 	}
 
-	public static String formatErrorMsg(MethodNode mth, String msg, Throwable e) {
+	public String formatErrorMsg(MethodNode mth, String msg, Throwable e) {
 		return formatErrorMsg(mth, msg) + formatException(e);
 	}
 }

jadx-core/src/test/groovy/jadx/tests/TestAPI.groovy

 package jadx.tests
-
-import jadx.api.JadxDecompiler
 import jadx.api.IJadxArgs
-import jadx.core.dex.nodes.MethodNode
-import jadx.core.utils.ErrorsCounter
+import jadx.api.JadxDecompiler
 import jadx.core.utils.exceptions.JadxException
 import jadx.core.utils.exceptions.JadxRuntimeException
 import spock.lang.Specification
@@ -67,20 +64,4 @@ class TestAPI extends Specification {
         expect:
         new JadxDecompiler().getErrorsCount() == 0
     }
-
-    def "get errors count after one more init"() {
-        setup:
-        new JadxDecompiler()
-        def mth = Mock(MethodNode)
-        when:
-        ErrorsCounter.methodError(mth, "")
-        def d = new JadxDecompiler()
-        then:
-        d.getErrorsCount() == 0
-    }
-
-    def "decompiler toString()"() {
-        expect:
-        new JadxDecompiler().toString() == "jadx decompiler"
-    }
 }