fix: correct loading for plain text XML files (PR #2537)

jadx-core/src/main/java/jadx/core/xmlgen/BinaryXMLParser.java

@@ -65,7 +65,7 @@ public class BinaryXMLParser extends CommonBinaryParser {
 		resourceIds = null;
 		is = new ParserStream(inputStream);
 		if (!isBinaryXml()) {
-			return ResourcesLoader.loadToCodeWriter(inputStream);
+			return ResourcesLoader.loadToCodeWriter(is);
 		}
 		nsMapGenerated = new HashSet<>();
 		nsMap = new HashMap<>();

jadx-core/src/main/java/jadx/core/xmlgen/ParserStream.java

@@ -9,7 +9,7 @@ import java.nio.charset.StandardCharsets;
 
 import org.jetbrains.annotations.NotNull;
 
-public class ParserStream {
+public class ParserStream extends InputStream {
 
 	protected static final Charset STRING_CHARSET_UTF16 = StandardCharsets.UTF_16LE;
 	protected static final Charset STRING_CHARSET_UTF8 = StandardCharsets.UTF_8;
@@ -88,7 +88,8 @@ public class ParserStream {
 		return arr;
 	}
 
-	public void skip(long count) throws IOException {
+	@Override
+	public long skip(long count) throws IOException {
 		readPos += count;
 		long pos = input.skip(count);
 		while (pos < count) {
@@ -98,6 +99,7 @@ public class ParserStream {
 			}
 			pos += skipped;
 		}
+		return pos;
 	}
 
 	public void checkInt8(int expected, String error) throws IOException {
@@ -140,14 +142,16 @@ public class ParserStream {
 		checkPos(expectedOffset, error);
 	}
 
-	public void mark(int len) throws IOException {
+	@Override
+	public void mark(int len) {
 		if (!input.markSupported()) {
-			throw new IOException("Mark not supported for input stream " + input.getClass());
+			throw new RuntimeException("Mark not supported for input stream " + input.getClass());
 		}
 		input.mark(len);
 		markPos = readPos;
 	}
 
+	@Override
 	public void reset() throws IOException {
 		input.reset();
 		readPos = markPos;
@@ -172,6 +176,16 @@ public class ParserStream {
 		}
 	}
 
+	@Override
+	public int read() throws IOException {
+		return input.read();
+	}
+
+	@Override
+	public int read(@NotNull byte[] b, int off, int len) throws IOException {
+		return input.read(b, off, len);
+	}
+
 	@Override
 	public String toString() {
 		return "pos: 0x" + Long.toHexString(readPos);