diff --git a/one-d-reader-derive/src/lib.rs b/one-d-reader-derive/src/lib.rs
index 60279c2..917f14c 100644
--- a/one-d-reader-derive/src/lib.rs
+++ b/one-d-reader-derive/src/lib.rs
@@ -74,10 +74,6 @@ fn impl_one_d_reader_macro(ast: &syn::DeriveInput) -> TokenStream {
                 }
               }
             }
-        
-            fn reset(&mut self) {
-                // do nothing
-            }
         }
     };
     gen.into()
diff --git a/src/decode_hints.rs b/src/decode_hints.rs
index 1ab7ac3..0c1d65f 100644
--- a/src/decode_hints.rs
+++ b/src/decode_hints.rs
@@ -16,6 +16,8 @@
 
 //package com.google.zxing;
 
+use std::collections::HashSet;
+
 use crate::{BarcodeFormat, RXingResultPointCallback};
 
 /**
@@ -141,7 +143,7 @@ pub enum DecodeHintValue {
      * Image is known to be of one of a few possible formats.
      * Maps to a {@link List} of {@link BarcodeFormat}s.
      */
-    PossibleFormats(Vec<BarcodeFormat>),
+    PossibleFormats(HashSet<BarcodeFormat>),
 
     /**
      * Spend more time to try to find a barcode; optimize for accuracy, not speed.
diff --git a/src/multi_format_reader.rs b/src/multi_format_reader.rs
index a7126b3..f1e273c 100644
--- a/src/multi_format_reader.rs
+++ b/src/multi_format_reader.rs
@@ -18,8 +18,8 @@ use std::collections::HashMap;
 
 use crate::{
     aztec::AztecReader, datamatrix::DataMatrixReader, maxicode::MaxiCodeReader,
-    qrcode::QRCodeReader, BarcodeFormat, BinaryBitmap, DecodeHintType, DecodeHintValue,
-    DecodingHintDictionary, Exceptions, RXingResult, Reader,
+    oned::MultiFormatOneDReader, qrcode::QRCodeReader, BarcodeFormat, BinaryBitmap, DecodeHintType,
+    DecodeHintValue, DecodingHintDictionary, Exceptions, RXingResult, Reader,
 };
 
 /**
@@ -124,8 +124,7 @@ impl MultiFormatReader {
                 || formats.contains(&BarcodeFormat::RSS_EXPANDED);
             // Put 1D readers upfront in "normal" mode
             if addOneDReader && !tryHarder {
-                unimplemented!("");
-                // readers.push(new MultiFormatOneDReader(hints));
+                readers.push(Box::new(MultiFormatOneDReader::new(hints)));
             }
             if formats.contains(&BarcodeFormat::QR_CODE) {
                 readers.push(Box::new(QRCodeReader {}));
@@ -145,13 +144,12 @@ impl MultiFormatReader {
             }
             // At end in "try harder" mode
             if addOneDReader && tryHarder {
-                unimplemented!("");
-                // readers.push( MultiFormatOneDReader::new(hints));
+                readers.push(Box::new(MultiFormatOneDReader::new(hints)));
             }
         }
         if readers.is_empty() {
             if !tryHarder {
-                // readers.push( MultiFormatOneDReader::new(hints));
+                readers.push(Box::new(MultiFormatOneDReader::new(hints)));
                 //TODO: ADD MultiformatOneDReader here
             }
 
@@ -163,7 +161,7 @@ impl MultiFormatReader {
             // unimplemented!("");
 
             if tryHarder {
-                // readers.push( Box::new(MultiFormatOneDReader::new(hints)));
+                readers.push(Box::new(MultiFormatOneDReader::new(hints)));
                 //TODO: ADD MultiformatOneDReader here
             }
         }
diff --git a/src/oned/Code39Reader.java b/src/oned/Code39Reader.java
deleted file mode 100644
index a74ae93..0000000
--- a/src/oned/Code39Reader.java
+++ /dev/null
@@ -1,340 +0,0 @@
-/*
- * Copyright 2008 ZXing authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.google.zxing.oned;
-
-import com.google.zxing.BarcodeFormat;
-import com.google.zxing.ChecksumException;
-import com.google.zxing.DecodeHintType;
-import com.google.zxing.FormatException;
-import com.google.zxing.NotFoundException;
-import com.google.zxing.RXingResult;
-import com.google.zxing.RXingResultMetadataType;
-import com.google.zxing.RXingResultPoint;
-import com.google.zxing.common.BitArray;
-
-import java.util.Arrays;
-import java.util.Map;
-
-/**
- * <p>Decodes Code 39 barcodes. Supports "Full ASCII Code 39" if USE_CODE_39_EXTENDED_MODE is set.</p>
- *
- * @author Sean Owen
- * @see Code93Reader
- */
-public final class Code39Reader extends OneDReader {
-
-  static final String ALPHABET_STRING = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+%";
-
-  /**
-   * These represent the encodings of characters, as patterns of wide and narrow bars.
-   * The 9 least-significant bits of each int correspond to the pattern of wide and narrow,
-   * with 1s representing "wide" and 0s representing narrow.
-   */
-  static final int[] CHARACTER_ENCODINGS = {
-      0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, // 0-9
-      0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, // A-J
-      0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106, 0x046, 0x016, // K-T
-      0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x0A8, // U-$
-      0x0A2, 0x08A, 0x02A // /-%
-  };
-
-  static final int ASTERISK_ENCODING = 0x094;
-
-  private final boolean usingCheckDigit;
-  private final boolean extendedMode;
-  private final StringBuilder decodeRowRXingResult;
-  private final int[] counters;
-
-  /**
-   * Creates a reader that assumes all encoded data is data, and does not treat the final
-   * character as a check digit. It will not decoded "extended Code 39" sequences.
-   */
-  public Code39Reader() {
-    this(false);
-  }
-
-  /**
-   * Creates a reader that can be configured to check the last character as a check digit.
-   * It will not decoded "extended Code 39" sequences.
-   *
-   * @param usingCheckDigit if true, treat the last data character as a check digit, not
-   * data, and verify that the checksum passes.
-   */
-  public Code39Reader(boolean usingCheckDigit) {
-    this(usingCheckDigit, false);
-  }
-
-  /**
-   * Creates a reader that can be configured to check the last character as a check digit,
-   * or optionally attempt to decode "extended Code 39" sequences that are used to encode
-   * the full ASCII character set.
-   *
-   * @param usingCheckDigit if true, treat the last data character as a check digit, not
-   * data, and verify that the checksum passes.
-   * @param extendedMode if true, will attempt to decode extended Code 39 sequences in the
-   * text.
-   */
-  public Code39Reader(boolean usingCheckDigit, boolean extendedMode) {
-    this.usingCheckDigit = usingCheckDigit;
-    this.extendedMode = extendedMode;
-    decodeRowRXingResult = new StringBuilder(20);
-    counters = new int[9];
-  }
-
-  @Override
-  public RXingResult decodeRow(int rowNumber, BitArray row, Map<DecodeHintType,?> hints)
-      throws NotFoundException, ChecksumException, FormatException {
-
-    int[] theCounters = counters;
-    Arrays.fill(theCounters, 0);
-    StringBuilder result = decodeRowRXingResult;
-    result.setLength(0);
-
-    int[] start = findAsteriskPattern(row, theCounters);
-    // Read off white space
-    int nextStart = row.getNextSet(start[1]);
-    int end = row.getSize();
-
-    char decodedChar;
-    int lastStart;
-    do {
-      recordPattern(row, nextStart, theCounters);
-      int pattern = toNarrowWidePattern(theCounters);
-      if (pattern < 0) {
-        throw NotFoundException.getNotFoundInstance();
-      }
-      decodedChar = patternToChar(pattern);
-      result.append(decodedChar);
-      lastStart = nextStart;
-      for (int counter : theCounters) {
-        nextStart += counter;
-      }
-      // Read off white space
-      nextStart = row.getNextSet(nextStart);
-    } while (decodedChar != '*');
-    result.setLength(result.length() - 1); // remove asterisk
-
-    // Look for whitespace after pattern:
-    int lastPatternSize = 0;
-    for (int counter : theCounters) {
-      lastPatternSize += counter;
-    }
-    int whiteSpaceAfterEnd = nextStart - lastStart - lastPatternSize;
-    // If 50% of last pattern size, following last pattern, is not whitespace, fail
-    // (but if it's whitespace to the very end of the image, that's OK)
-    if (nextStart != end && (whiteSpaceAfterEnd * 2) < lastPatternSize) {
-      throw NotFoundException.getNotFoundInstance();
-    }
-
-    if (usingCheckDigit) {
-      int max = result.length() - 1;
-      int total = 0;
-      for (int i = 0; i < max; i++) {
-        total += ALPHABET_STRING.indexOf(decodeRowRXingResult.charAt(i));
-      }
-      if (result.charAt(max) != ALPHABET_STRING.charAt(total % 43)) {
-        throw ChecksumException.getChecksumInstance();
-      }
-      result.setLength(max);
-    }
-
-    if (result.length() == 0) {
-      // false positive
-      throw NotFoundException.getNotFoundInstance();
-    }
-
-    String resultString;
-    if (extendedMode) {
-      resultString = decodeExtended(result);
-    } else {
-      resultString = result.toString();
-    }
-
-    float left = (start[1] + start[0]) / 2.0f;
-    float right = lastStart + lastPatternSize / 2.0f;
-
-    RXingResult resultObject = new RXingResult(
-        resultString,
-        null,
-        new RXingResultPoint[]{
-            new RXingResultPoint(left, rowNumber),
-            new RXingResultPoint(right, rowNumber)},
-        BarcodeFormat.CODE_39);
-    resultObject.putMetadata(RXingResultMetadataType.SYMBOLOGY_IDENTIFIER, "]A0");
-    return resultObject;
-  }
-
-  private static int[] findAsteriskPattern(BitArray row, int[] counters) throws NotFoundException {
-    int width = row.getSize();
-    int rowOffset = row.getNextSet(0);
-
-    int counterPosition = 0;
-    int patternStart = rowOffset;
-    boolean isWhite = false;
-    int patternLength = counters.length;
-
-    for (int i = rowOffset; i < width; i++) {
-      if (row.get(i) != isWhite) {
-        counters[counterPosition]++;
-      } else {
-        if (counterPosition == patternLength - 1) {
-          // Look for whitespace before start pattern, >= 50% of width of start pattern
-          if (toNarrowWidePattern(counters) == ASTERISK_ENCODING &&
-              row.isRange(Math.max(0, patternStart - ((i - patternStart) / 2)), patternStart, false)) {
-            return new int[]{patternStart, i};
-          }
-          patternStart += counters[0] + counters[1];
-          System.arraycopy(counters, 2, counters, 0, counterPosition - 1);
-          counters[counterPosition - 1] = 0;
-          counters[counterPosition] = 0;
-          counterPosition--;
-        } else {
-          counterPosition++;
-        }
-        counters[counterPosition] = 1;
-        isWhite = !isWhite;
-      }
-    }
-    throw NotFoundException.getNotFoundInstance();
-  }
-
-  // For efficiency, returns -1 on failure. Not throwing here saved as many as 700 exceptions
-  // per image when using some of our blackbox images.
-  private static int toNarrowWidePattern(int[] counters) {
-    int numCounters = counters.length;
-    int maxNarrowCounter = 0;
-    int wideCounters;
-    do {
-      int minCounter = Integer.MAX_VALUE;
-      for (int counter : counters) {
-        if (counter < minCounter && counter > maxNarrowCounter) {
-          minCounter = counter;
-        }
-      }
-      maxNarrowCounter = minCounter;
-      wideCounters = 0;
-      int totalWideCountersWidth = 0;
-      int pattern = 0;
-      for (int i = 0; i < numCounters; i++) {
-        int counter = counters[i];
-        if (counter > maxNarrowCounter) {
-          pattern |= 1 << (numCounters - 1 - i);
-          wideCounters++;
-          totalWideCountersWidth += counter;
-        }
-      }
-      if (wideCounters == 3) {
-        // Found 3 wide counters, but are they close enough in width?
-        // We can perform a cheap, conservative check to see if any individual
-        // counter is more than 1.5 times the average:
-        for (int i = 0; i < numCounters && wideCounters > 0; i++) {
-          int counter = counters[i];
-          if (counter > maxNarrowCounter) {
-            wideCounters--;
-            // totalWideCountersWidth = 3 * average, so this checks if counter >= 3/2 * average
-            if ((counter * 2) >= totalWideCountersWidth) {
-              return -1;
-            }
-          }
-        }
-        return pattern;
-      }
-    } while (wideCounters > 3);
-    return -1;
-  }
-
-  private static char patternToChar(int pattern) throws NotFoundException {
-    for (int i = 0; i < CHARACTER_ENCODINGS.length; i++) {
-      if (CHARACTER_ENCODINGS[i] == pattern) {
-        return ALPHABET_STRING.charAt(i);
-      }
-    }
-    if (pattern == ASTERISK_ENCODING) {
-      return '*';
-    }
-    throw NotFoundException.getNotFoundInstance();
-  }
-
-  private static String decodeExtended(CharSequence encoded) throws FormatException {
-    int length = encoded.length();
-    StringBuilder decoded = new StringBuilder(length);
-    for (int i = 0; i < length; i++) {
-      char c = encoded.charAt(i);
-      if (c == '+' || c == '$' || c == '%' || c == '/') {
-        char next = encoded.charAt(i + 1);
-        char decodedChar = '\0';
-        switch (c) {
-          case '+':
-            // +A to +Z map to a to z
-            if (next >= 'A' && next <= 'Z') {
-              decodedChar = (char) (next + 32);
-            } else {
-              throw FormatException.getFormatInstance();
-            }
-            break;
-          case '$':
-            // $A to $Z map to control codes SH to SB
-            if (next >= 'A' && next <= 'Z') {
-              decodedChar = (char) (next - 64);
-            } else {
-              throw FormatException.getFormatInstance();
-            }
-            break;
-          case '%':
-            // %A to %E map to control codes ESC to US
-            if (next >= 'A' && next <= 'E') {
-              decodedChar = (char) (next - 38);
-            } else if (next >= 'F' && next <= 'J') {
-              decodedChar = (char) (next - 11);
-            } else if (next >= 'K' && next <= 'O') {
-              decodedChar = (char) (next + 16);
-            } else if (next >= 'P' && next <= 'T') {
-              decodedChar = (char) (next + 43);
-            } else if (next == 'U') {
-              decodedChar = (char) 0;
-            } else if (next == 'V') {
-              decodedChar = '@';
-            } else if (next == 'W') {
-              decodedChar = '`';
-            } else if (next == 'X' || next == 'Y' || next == 'Z') {
-              decodedChar = (char) 127;
-            } else {
-              throw FormatException.getFormatInstance();
-            }
-            break;
-          case '/':
-            // /A to /O map to ! to , and /Z maps to :
-            if (next >= 'A' && next <= 'O') {
-              decodedChar = (char) (next - 32);
-            } else if (next == 'Z') {
-              decodedChar = ':';
-            } else {
-              throw FormatException.getFormatInstance();
-            }
-            break;
-        }
-        decoded.append(decodedChar);
-        // bump up i again since we read two characters
-        i++;
-      } else {
-        decoded.append(c);
-      }
-    }
-    return decoded.toString();
-  }
-
-}
diff --git a/src/oned/MultiFormatOneDReader.java b/src/oned/MultiFormatOneDReader.java
deleted file mode 100644
index 66d45de..0000000
--- a/src/oned/MultiFormatOneDReader.java
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
- * Copyright 2008 ZXing authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.google.zxing.oned;
-
-import com.google.zxing.BarcodeFormat;
-import com.google.zxing.DecodeHintType;
-import com.google.zxing.NotFoundException;
-import com.google.zxing.Reader;
-import com.google.zxing.ReaderException;
-import com.google.zxing.RXingResult;
-import com.google.zxing.common.BitArray;
-import com.google.zxing.oned.rss.RSS14Reader;
-import com.google.zxing.oned.rss.expanded.RSSExpandedReader;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Map;
-
-/**
- * @author dswitkin@google.com (Daniel Switkin)
- * @author Sean Owen
- */
-public final class MultiFormatOneDReader extends OneDReader {
-
-  private static final OneDReader[] EMPTY_ONED_ARRAY = new OneDReader[0];
-
-  private final OneDReader[] readers;
-
-  public MultiFormatOneDReader(Map<DecodeHintType,?> hints) {
-    @SuppressWarnings("unchecked")
-    Collection<BarcodeFormat> possibleFormats = hints == null ? null :
-        (Collection<BarcodeFormat>) hints.get(DecodeHintType.POSSIBLE_FORMATS);
-    boolean useCode39CheckDigit = hints != null &&
-        hints.get(DecodeHintType.ASSUME_CODE_39_CHECK_DIGIT) != null;
-    Collection<OneDReader> readers = new ArrayList<>();
-    if (possibleFormats != null) {
-      if (possibleFormats.contains(BarcodeFormat.EAN_13) ||
-          possibleFormats.contains(BarcodeFormat.UPC_A) ||
-          possibleFormats.contains(BarcodeFormat.EAN_8) ||
-          possibleFormats.contains(BarcodeFormat.UPC_E)) {
-        readers.add(new MultiFormatUPCEANReader(hints));
-      }
-      if (possibleFormats.contains(BarcodeFormat.CODE_39)) {
-        readers.add(new Code39Reader(useCode39CheckDigit));
-      }
-      if (possibleFormats.contains(BarcodeFormat.CODE_93)) {
-        readers.add(new Code93Reader());
-      }
-      if (possibleFormats.contains(BarcodeFormat.CODE_128)) {
-        readers.add(new Code128Reader());
-      }
-      if (possibleFormats.contains(BarcodeFormat.ITF)) {
-        readers.add(new ITFReader());
-      }
-      if (possibleFormats.contains(BarcodeFormat.CODABAR)) {
-        readers.add(new CodaBarReader());
-      }
-      if (possibleFormats.contains(BarcodeFormat.RSS_14)) {
-        readers.add(new RSS14Reader());
-      }
-      if (possibleFormats.contains(BarcodeFormat.RSS_EXPANDED)) {
-        readers.add(new RSSExpandedReader());
-      }
-    }
-    if (readers.isEmpty()) {
-      readers.add(new MultiFormatUPCEANReader(hints));
-      readers.add(new Code39Reader());
-      readers.add(new CodaBarReader());
-      readers.add(new Code93Reader());
-      readers.add(new Code128Reader());
-      readers.add(new ITFReader());
-      readers.add(new RSS14Reader());
-      readers.add(new RSSExpandedReader());
-    }
-    this.readers = readers.toArray(EMPTY_ONED_ARRAY);
-  }
-
-  @Override
-  public RXingResult decodeRow(int rowNumber,
-                          BitArray row,
-                          Map<DecodeHintType,?> hints) throws NotFoundException {
-    for (OneDReader reader : readers) {
-      try {
-        return reader.decodeRow(rowNumber, row, hints);
-      } catch (ReaderException re) {
-        // continue
-      }
-    }
-
-    throw NotFoundException.getNotFoundInstance();
-  }
-
-  @Override
-  public void reset() {
-    for (Reader reader : readers) {
-      reader.reset();
-    }
-  }
-
-}
diff --git a/src/oned/coda_bar_reader.rs b/src/oned/coda_bar_reader.rs
index 6ee2450..eafdfff 100644
--- a/src/oned/coda_bar_reader.rs
+++ b/src/oned/coda_bar_reader.rs
@@ -137,7 +137,7 @@ impl OneDReader for CodaBarReader {
             // self.decodeRowRXingResult.deleteCharAt(self.decodeRowRXingResult.chars().count() - 1);
             // self.decodeRowRXingResult.deleteCharAt(0);
             self.decodeRowRXingResult =
-                self.decodeRowRXingResult[1..self.decodeRowRXingResult.len()-1].to_owned();
+                self.decodeRowRXingResult[1..self.decodeRowRXingResult.len() - 1].to_owned();
         }
 
         let mut runningCount = 0;
diff --git a/src/oned/code_39_reader.rs b/src/oned/code_39_reader.rs
new file mode 100644
index 0000000..613645f
--- /dev/null
+++ b/src/oned/code_39_reader.rs
@@ -0,0 +1,419 @@
+/*
+ * Copyright 2008 ZXing authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+use one_d_reader_derive::OneDReader;
+
+use crate::common::BitArray;
+use crate::{BarcodeFormat, Exceptions, RXingResult};
+
+use super::OneDReader;
+
+/**
+ * <p>Decodes Code 39 barcodes. Supports "Full ASCII Code 39" if USE_CODE_39_EXTENDED_MODE is set.</p>
+ *
+ * @author Sean Owen
+ * @see Code93Reader
+ */
+#[derive(OneDReader)]
+pub struct Code39Reader {
+    usingCheckDigit: bool,
+    extendedMode: bool,
+    decodeRowRXingResult: String,
+    counters: Vec<u32>,
+}
+impl OneDReader for Code39Reader {
+    fn decodeRow(
+        &mut self,
+        rowNumber: u32,
+        row: &crate::common::BitArray,
+        _hints: &DecodingHintDictionary,
+    ) -> Result<crate::RXingResult, Exceptions> {
+        // let theCounters = self.counters;
+        self.counters.fill(0);
+        // let result = self.decodeRowRXingResult;
+        // result.setLength(0);
+        self.decodeRowRXingResult.clear();
+
+        let start = Self::findAsteriskPattern(row, &mut self.counters)?;
+        // Read off white space
+        let mut nextStart = row.getNextSet(start[1] as usize);
+        let end = row.getSize();
+
+        let mut decodedChar;
+        let mut lastStart;
+        loop {
+            Self::recordPattern(row, nextStart, &mut self.counters)?;
+            let pattern = Self::toNarrowWidePattern(&self.counters);
+            if pattern < 0 {
+                return Err(Exceptions::NotFoundException("".to_owned()));
+            }
+            decodedChar = Self::patternToChar(pattern as u32)?;
+            self.decodeRowRXingResult.push(decodedChar);
+            lastStart = nextStart;
+            for counter in &self.counters {
+                // for (int counter : theCounters) {
+                nextStart += *counter as usize;
+            }
+            // Read off white space
+            nextStart = row.getNextSet(nextStart);
+
+            if !(decodedChar != '*') {
+                break;
+            }
+        } //(decodedChar != '*');
+        self.decodeRowRXingResult
+            .truncate(self.decodeRowRXingResult.len() - 1); // remove asterisk
+
+        // Look for whitespace after pattern:
+        let mut lastPatternSize = 0;
+        for counter in &self.counters {
+            // for (int counter : self.counters) {
+            lastPatternSize += *counter;
+        }
+        let whiteSpaceAfterEnd = nextStart - lastStart - lastPatternSize as usize;
+        // If 50% of last pattern size, following last pattern, is not whitespace, fail
+        // (but if it's whitespace to the very end of the image, that's OK)
+        if nextStart != end && (whiteSpaceAfterEnd * 2) < lastPatternSize as usize {
+            return Err(Exceptions::NotFoundException("".to_owned()));
+        }
+
+        if self.usingCheckDigit {
+            let max = self.decodeRowRXingResult.chars().count() - 1;
+            let mut total = 0;
+            for i in 0..max {
+                // for (int i = 0; i < max; i++) {
+                if let Some(pos) =
+                    Self::ALPHABET_STRING.find(self.decodeRowRXingResult.chars().nth(i).unwrap())
+                {
+                    total += pos;
+                }
+                // total += Self::ALPHABET_STRING.indexOf(self.decodeRowRXingResult.chars().nth(i).unwrap());
+            }
+            if self.decodeRowRXingResult.chars().nth(max).unwrap()
+                != Self::ALPHABET_STRING.chars().nth(total % 43).unwrap()
+            {
+                return Err(Exceptions::NotFoundException("".to_owned()));
+            }
+            self.decodeRowRXingResult.truncate(max);
+        }
+
+        if self.decodeRowRXingResult.chars().count() == 0 {
+            // false positive
+            return Err(Exceptions::NotFoundException("".to_owned()));
+        }
+
+        let resultString;
+        if self.extendedMode {
+            resultString = Self::decodeExtended(&self.decodeRowRXingResult)?;
+        } else {
+            resultString = self.decodeRowRXingResult.clone();
+        }
+
+        let left = (start[1] + start[0]) as f32 / 2.0;
+        let right = (lastStart + lastPatternSize as usize) as f32 / 2.0;
+
+        let mut resultObject = RXingResult::new(
+            &resultString,
+            Vec::new(),
+            vec![
+                RXingResultPoint::new(left, rowNumber as f32),
+                RXingResultPoint::new(right, rowNumber as f32),
+            ],
+            BarcodeFormat::CODE_39,
+        );
+
+        resultObject.putMetadata(
+            RXingResultMetadataType::SYMBOLOGY_IDENTIFIER,
+            RXingResultMetadataValue::SymbologyIdentifier("]A0".to_owned()),
+        );
+
+        Ok(resultObject)
+    }
+}
+impl Code39Reader {
+    const ALPHABET_STRING: &str = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+%";
+
+    /**
+     * These represent the encodings of characters, as patterns of wide and narrow bars.
+     * The 9 least-significant bits of each int correspond to the pattern of wide and narrow,
+     * with 1s representing "wide" and 0s representing narrow.
+     */
+    const CHARACTER_ENCODINGS: [u32; 43] = [
+        0x034, 0x121, 0x061, 0x160, 0x031, 0x130, 0x070, 0x025, 0x124, 0x064, // 0-9
+        0x109, 0x049, 0x148, 0x019, 0x118, 0x058, 0x00D, 0x10C, 0x04C, 0x01C, // A-J
+        0x103, 0x043, 0x142, 0x013, 0x112, 0x052, 0x007, 0x106, 0x046, 0x016, // K-T
+        0x181, 0x0C1, 0x1C0, 0x091, 0x190, 0x0D0, 0x085, 0x184, 0x0C4, 0x0A8, // U-$
+        0x0A2, 0x08A, 0x02A, // /-%
+    ];
+
+    const ASTERISK_ENCODING: u32 = 0x094;
+
+    /**
+     * Creates a reader that assumes all encoded data is data, and does not treat the final
+     * character as a check digit. It will not decoded "extended Code 39" sequences.
+     */
+    pub fn new() -> Self {
+        Self::with_use_check_digit(false)
+    }
+
+    /**
+     * Creates a reader that can be configured to check the last character as a check digit.
+     * It will not decoded "extended Code 39" sequences.
+     *
+     * @param usingCheckDigit if true, treat the last data character as a check digit, not
+     * data, and verify that the checksum passes.
+     */
+    pub fn with_use_check_digit(usingCheckDigit: bool) -> Self {
+        Self::with_all_config(usingCheckDigit, false)
+    }
+
+    /**
+     * Creates a reader that can be configured to check the last character as a check digit,
+     * or optionally attempt to decode "extended Code 39" sequences that are used to encode
+     * the full ASCII character set.
+     *
+     * @param usingCheckDigit if true, treat the last data character as a check digit, not
+     * data, and verify that the checksum passes.
+     * @param extendedMode if true, will attempt to decode extended Code 39 sequences in the
+     * text.
+     */
+    pub fn with_all_config(usingCheckDigit: bool, extendedMode: bool) -> Self {
+        Self {
+            usingCheckDigit,
+            extendedMode,
+            decodeRowRXingResult: String::with_capacity(20),
+            counters: vec![0; 9],
+        }
+    }
+
+    fn findAsteriskPattern(row: &BitArray, counters: &mut [u32]) -> Result<Vec<u32>, Exceptions> {
+        let width = row.getSize();
+        let rowOffset = row.getNextSet(0);
+
+        let mut counterPosition = 0;
+        let mut patternStart = rowOffset;
+        let mut isWhite = false;
+        let patternLength = counters.len();
+
+        for i in rowOffset..width {
+            // for (int i = rowOffset; i < width; i++) {
+            if row.get(i) != isWhite {
+                counters[counterPosition] += 1;
+            } else {
+                if counterPosition == patternLength - 1 {
+                    // Look for whitespace before start pattern, >= 50% of width of start pattern
+                    if Self::toNarrowWidePattern(counters) == (Self::ASTERISK_ENCODING as i32)
+                        && row.isRange(
+                            0.max(
+                                patternStart as isize - ((i as isize - patternStart as isize) / 2),
+                            ) as usize,
+                            patternStart,
+                            false,
+                        )?
+                    {
+                        return Ok(vec![patternStart as u32, i as u32]);
+                        // return new int[]{patternStart, i};
+                    }
+                    patternStart += (counters[0] + counters[1]) as usize;
+                    let slc = counters[0..(counterPosition - 1)].to_vec();
+                    counters[2..(counterPosition - 1 + 2)].clone_from_slice(&slc[..]);
+                    // System.arraycopy(counters, 2, counters, 0, counterPosition - 1);
+                    counters[counterPosition - 1] = 0;
+                    counters[counterPosition] = 0;
+                    counterPosition -= 1;
+                } else {
+                    counterPosition += 1;
+                }
+                counters[counterPosition] = 1;
+                isWhite = !isWhite;
+            }
+        }
+        return Err(Exceptions::NotFoundException("".to_owned()));
+    }
+
+    // For efficiency, returns -1 on failure. Not throwing here saved as many as 700 exceptions
+    // per image when using some of our blackbox images.
+    fn toNarrowWidePattern(counters: &[u32]) -> i32 {
+        let numCounters = counters.len();
+        let mut maxNarrowCounter = 0;
+        let mut wideCounters;
+        loop {
+            let mut minCounter = u32::MAX; //Integer.MAX_VALUE;
+            for counter in counters {
+                // for (int counter : counters) {
+                if counter < &minCounter && counter > &maxNarrowCounter {
+                    minCounter = *counter;
+                }
+            }
+            maxNarrowCounter = minCounter;
+            wideCounters = 0;
+            let mut totalWideCountersWidth = 0;
+            let mut pattern = 0;
+            for i in 0..numCounters {
+                // for (int i = 0; i < numCounters; i++) {
+                let counter = counters[i];
+                if counter > maxNarrowCounter {
+                    pattern |= 1 << (numCounters - 1 - i);
+                    wideCounters += 1;
+                    totalWideCountersWidth += counter;
+                }
+            }
+            if wideCounters == 3 {
+                // Found 3 wide counters, but are they close enough in width?
+                // We can perform a cheap, conservative check to see if any individual
+                // counter is more than 1.5 times the average:
+                let mut i = 0;
+                while i < numCounters && wideCounters > 0 {
+                    // for (int i = 0; i < numCounters && wideCounters > 0; i++) {
+                    let counter = counters[i];
+                    if counter > maxNarrowCounter {
+                        wideCounters -= 1;
+                        // totalWideCountersWidth = 3 * average, so this checks if counter >= 3/2 * average
+                        if (counter * 2) >= totalWideCountersWidth {
+                            return -1;
+                        }
+                    }
+
+                    i += 1;
+                }
+                return pattern;
+            }
+
+            if !(wideCounters > 3) {
+                break;
+            }
+        } //while ;
+        return -1;
+    }
+
+    fn patternToChar(pattern: u32) -> Result<char, Exceptions> {
+        for i in 0..Self::CHARACTER_ENCODINGS.len() {
+            // for (int i = 0; i < CHARACTER_ENCODINGS.length; i++) {
+            if Self::CHARACTER_ENCODINGS[i] == pattern {
+                return Ok(Self::ALPHABET_STRING.chars().nth(i).unwrap());
+            }
+        }
+        if pattern == Self::ASTERISK_ENCODING {
+            return Ok('*');
+        }
+        return Err(Exceptions::NotFoundException("".to_owned()));
+    }
+
+    fn decodeExtended(encoded: &str) -> Result<String, Exceptions> {
+        let length = encoded.chars().count();
+        let mut decoded = String::with_capacity(length); //new StringBuilder(length);
+        let mut i = 0;
+        while i < length {
+            // for i in 0..length {
+            // for (int i = 0; i < length; i++) {
+            let c = encoded.chars().nth(i).unwrap();
+            if c == '+' || c == '$' || c == '%' || c == '/' {
+                let next = encoded.chars().nth(i + 1).unwrap();
+                let mut decodedChar = '\0';
+                match c {
+                    '+' => {
+                        // +A to +Z map to a to z
+                        if next >= 'A' && next <= 'Z' {
+                            decodedChar = char::from_u32(next as u32 + 32).unwrap();
+                        } else {
+                            return Err(Exceptions::NotFoundException("".to_owned()));
+                        }
+                    }
+                    '$' => {
+                        // $A to $Z map to control codes SH to SB
+                        if next >= 'A' && next <= 'Z' {
+                            decodedChar = char::from_u32(next as u32 - 64).unwrap();
+                        } else {
+                            return Err(Exceptions::NotFoundException("".to_owned()));
+                        }
+                    }
+                    '%' => {
+                        // %A to %E map to control codes ESC to US
+                        if next >= 'A' && next <= 'E' {
+                            decodedChar = char::from_u32(next as u32 - 38).unwrap();
+                        } else if next >= 'F' && next <= 'J' {
+                            decodedChar = char::from_u32(next as u32 - 11).unwrap();
+                        } else if next >= 'K' && next <= 'O' {
+                            decodedChar = char::from_u32(next as u32 + 16).unwrap();
+                        } else if next >= 'P' && next <= 'T' {
+                            decodedChar = char::from_u32(next as u32 + 43).unwrap();
+                        } else if next == 'U' {
+                            decodedChar = 0 as char;
+                        } else if next == 'V' {
+                            decodedChar = '@';
+                        } else if next == 'W' {
+                            decodedChar = '`';
+                        } else if next == 'X' || next == 'Y' || next == 'Z' {
+                            decodedChar = 127 as char;
+                        } else {
+                            return Err(Exceptions::NotFoundException("".to_owned()));
+                        }
+                    }
+                    '/' => {
+                        // /A to /O map to ! to , and /Z maps to :
+                        if next >= 'A' && next <= 'O' {
+                            decodedChar = char::from_u32(next as u32 - 32).unwrap();
+                        } else if next == 'Z' {
+                            decodedChar = ':';
+                        } else {
+                            return Err(Exceptions::NotFoundException("".to_owned()));
+                        }
+                    }
+                    _ => {}
+                }
+                decoded.push(decodedChar);
+                // bump up i again since we read two characters
+                i += 1;
+            } else {
+                decoded.push(c);
+            }
+            i += 1;
+        }
+        Ok(decoded)
+    }
+}
+
+#[cfg(test)]
+mod code_39_extended_mode_test_case {
+    use std::collections::HashMap;
+
+    use crate::{
+        common::{BitArray, BitMatrix},
+        oned::{Code39Reader, OneDReader},
+    };
+    #[test]
+    fn testDecodeExtendedMode() {
+        // \b -> 2408 \f -> 000c
+        doTest("\u{0000}\u{0001}\u{0002}\u{0003}\u{0004}\u{0005}\u{0006}\u{0007}\u{0008}\t\n\u{000b}\u{000C}\r\u{000e}\u{000f}\u{0010}\u{0011}\u{0012}\u{0013}\u{0014}\u{0015}\u{0016}\u{0017}\u{0018}\u{0019}\u{001a}\u{001b}\u{001c}\u{001d}\u{001e}\u{001f}",
+           "000001001011011010101001001001011001010101101001001001010110101001011010010010010101011010010110100100100101011011010010101001001001010101011001011010010010010101101011001010100100100101010110110010101001001001010101010011011010010010010101101010011010100100100101010110100110101001001001010101011001101010010010010101101010100110100100100101010110101001101001001001010110110101001010010010010101010110100110100100100101011010110100101001001001010101101101001010010010010101010101100110100100100101011010101100101001001001010101101011001010010010010101010110110010100100100101011001010101101001001001010100110101011010010010010101100110101010100100100101010010110101101001001001010110010110101010010010010101001101101010101001001001011010100101101010010010010101101001011010100100100101101101001010101001001001010101100101101010010010010110101100101010010110110100000");
+        doTest(" !\"#$%&'()*+,-./0123456789:;<=>?",
+           "00000100101101101010011010110101001001010010110101001011010010010100101011010010110100100101001011011010010101001001010010101011001011010010010100101101011001010100100101001010110110010101001001010010101010011011010010010100101101010011010100100101001010110100110101001001010010101011001101010010010100101101010100110100100101001010110101001101001010110110110010101101010010010100101101011010010101001101101011010010101101011001010110110110010101010100110101101101001101010101100110101010100101101101101001011010101100101101010010010100101001101101010101001001001010110110010101010010010010101010011011010100100100101101010011010101001001001010110100110101010010010010101011001101010010110110100000");
+        doTest("@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_",
+           "000010010110110101010010010010100110101011011010100101101011010010110110110100101010101100101101101011001010101101100101010101001101101101010011010101101001101010101100110101101010100110101101010011011011010100101010110100110110101101001010110110100101010101100110110101011001010110101100101010110110010110010101011010011010101101100110101010100101101011011001011010101001101101010101001001001011010101001101010010010010101101010011010100100100101101101010010101001001001010101101001101010010010010110101101001010010110110100000");
+        doTest("`abcdefghijklmnopqrstuvwxyz{|}~",
+           "000001001011011010101001001001011001101010101001010010010110101001011010010100100101011010010110100101001001011011010010101001010010010101011001011010010100100101101011001010100101001001010110110010101001010010010101010011011010010100100101101010011010100101001001010110100110101001010010010101011001101010010100100101101010100110100101001001010110101001101001010010010110110101001010010100100101010110100110100101001001011010110100101001010010010101101101001010010100100101010101100110100101001001011010101100101001010010010101101011001010010100100101010110110010100101001001011001010101101001010010010100110101011010010100100101100110101010100101001001010010110101101001010010010110010110101010010100100101001101101010101001001001010110110100101010010010010101010110011010100100100101101010110010101001001001010110101100101010010010010101011011001010010110110100000");
+    }
+
+    fn doTest(expectedRXingResult: &str, encodedRXingResult: &str) {
+        let mut sut = Code39Reader::with_all_config(false, true);
+        let matrix =
+            BitMatrix::parse_strings(encodedRXingResult, "1", "0").expect("bitmatrix parse");
+        let row = BitArray::with_size(matrix.getWidth() as usize);
+        let row = matrix.getRow(0, &row);
+        let result = sut.decodeRow(0, &row, &HashMap::new()).expect("decode row");
+        assert_eq!(expectedRXingResult, result.getText());
+    }
+}
diff --git a/src/oned/mod.rs b/src/oned/mod.rs
index a91ecac..041d646 100644
--- a/src/oned/mod.rs
+++ b/src/oned/mod.rs
@@ -8,3 +8,9 @@ pub use ean_manufacturer_org_support::*;
 
 mod coda_bar_reader;
 pub use coda_bar_reader::*;
+
+mod code_39_reader;
+pub use code_39_reader::*;
+
+mod multi_format_one_d_reader;
+pub use multi_format_one_d_reader::*;
diff --git a/src/oned/multi_format_one_d_reader.rs b/src/oned/multi_format_one_d_reader.rs
new file mode 100644
index 0000000..3292fde
--- /dev/null
+++ b/src/oned/multi_format_one_d_reader.rs
@@ -0,0 +1,185 @@
+/*
+ * Copyright 2008 ZXing authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+use one_d_reader_derive::OneDReader;
+
+use super::CodaBarReader;
+use super::Code39Reader;
+use super::OneDReader;
+use crate::BarcodeFormat;
+use crate::DecodeHintValue;
+use crate::Exceptions;
+
+/**
+ * @author dswitkin@google.com (Daniel Switkin)
+ * @author Sean Owen
+ */
+pub struct MultiFormatOneDReader(Vec<Box<dyn OneDReader>>);
+impl OneDReader for MultiFormatOneDReader {
+    fn decodeRow(
+        &mut self,
+        rowNumber: u32,
+        row: &crate::common::BitArray,
+        hints: &crate::DecodingHintDictionary,
+    ) -> Result<crate::RXingResult, crate::Exceptions> {
+        for reader in self.0.iter_mut() {
+            // for (OneDReader reader : readers) {
+            // try {
+            if let Ok(res) = reader.decodeRow(rowNumber, row, hints) {
+                return Ok(res);
+            }
+            // } catch (ReaderException re) {
+            // continue
+            // }
+        }
+
+        return Err(Exceptions::NotFoundException("".to_owned()));
+    }
+}
+impl MultiFormatOneDReader {
+    // private static final OneDReader[] EMPTY_ONED_ARRAY = new OneDReader[0];
+
+    // private final OneDReader[] readers;
+
+    pub fn new(hints: &DecodingHintDictionary) -> Self {
+        let useCode39CheckDigit = hints.contains_key(&DecodeHintType::ASSUME_CODE_39_CHECK_DIGIT);
+        let mut readers: Vec<Box<dyn OneDReader>> = Vec::new();
+        if let Some(DecodeHintValue::PossibleFormats(possibleFormats)) =
+            hints.get(&DecodeHintType::POSSIBLE_FORMATS)
+        {
+            // if let let possibleFormats = hints == null ? null :
+            // (Collection<BarcodeFormat>) hints.get(&DecodeHintType::POSSIBLE_FORMATS);
+            // if (possibleFormats != null) {
+            // if (possibleFormats.contains(&BarcodeFormat::EAN_13) ||
+            //     possibleFormats.contains(&BarcodeFormat::UPC_A) ||
+            //     possibleFormats.contains(&BarcodeFormat::EAN_8) ||
+            //     possibleFormats.contains(&BarcodeFormat::UPC_E)) {
+            //   readers.add(new MultiFormatUPCEANReader(hints));
+            // }
+            if possibleFormats.contains(&BarcodeFormat::CODE_39) {
+                readers.push(Box::new(Code39Reader::with_use_check_digit(
+                    useCode39CheckDigit,
+                )));
+            }
+            // if (possibleFormats.contains(&BarcodeFormat::CODE_93)) {
+            //   readers.add(new Code93Reader());
+            // }
+            // if (possibleFormats.contains(&BarcodeFormat::CODE_128)) {
+            //   readers.add(new Code128Reader());
+            // }
+            // if (possibleFormats.contains(&BarcodeFormat::ITF)) {
+            //   readers.add(new ITFReader());
+            // }
+            if possibleFormats.contains(&BarcodeFormat::CODABAR) {
+                readers.push(Box::new(CodaBarReader::new()));
+            }
+            // if (possibleFormats.contains(&BarcodeFormat::RSS_14)) {
+            //   readers.add(new RSS14Reader());
+            // }
+            // if (possibleFormats.contains(&BarcodeFormat::RSS_EXPANDED)) {
+            //   readers.add(new RSSExpandedReader());
+            // }
+        }
+        if readers.is_empty() {
+            // readers.push(new MultiFormatUPCEANReader(hints));
+            readers.push(Box::new(Code39Reader::new()));
+            readers.push(Box::new(CodaBarReader::new()));
+            // readers.push(new Code93Reader());
+            // readers.push(new Code128Reader());
+            // readers.push(new ITFReader());
+            // readers.push(new RSS14Reader());
+            // readers.push(new RSSExpandedReader());
+        }
+
+        Self(readers)
+    }
+}
+
+use crate::result_point::ResultPoint;
+use crate::DecodeHintType;
+use crate::DecodingHintDictionary;
+use crate::RXingResultMetadataType;
+use crate::RXingResultMetadataValue;
+use crate::RXingResultPoint;
+use crate::Reader;
+use std::collections::HashMap;
+
+impl Reader for MultiFormatOneDReader {
+    fn decode(&mut self, image: &crate::BinaryBitmap) -> Result<crate::RXingResult, Exceptions> {
+        self.decode_with_hints(image, &HashMap::new())
+    }
+
+    // Note that we don't try rotation without the try harder flag, even if rotation was supported.
+    fn decode_with_hints(
+        &mut self,
+        image: &crate::BinaryBitmap,
+        hints: &DecodingHintDictionary,
+    ) -> Result<crate::RXingResult, Exceptions> {
+        if let Ok(res) = self.doDecode(image, hints) {
+            Ok(res)
+        } else {
+            let tryHarder = hints.contains_key(&DecodeHintType::TRY_HARDER);
+            if tryHarder && image.isRotateSupported() {
+                let rotatedImage = image.rotateCounterClockwise();
+                let mut result = self.doDecode(&rotatedImage, hints)?;
+                // Record that we found it rotated 90 degrees CCW / 270 degrees CW
+                let metadata = result.getRXingResultMetadata();
+                let mut orientation = 270;
+                if metadata.contains_key(&RXingResultMetadataType::ORIENTATION) {
+                    // But if we found it reversed in doDecode(), add in that result here:
+                    orientation = (orientation
+                        + if let Some(crate::RXingResultMetadataValue::Orientation(or)) =
+                            metadata.get(&RXingResultMetadataType::ORIENTATION)
+                        {
+                            *or
+                        } else {
+                            0
+                        })
+                        % 360;
+                }
+                result.putMetadata(
+                    RXingResultMetadataType::ORIENTATION,
+                    RXingResultMetadataValue::Orientation(orientation),
+                );
+                // Update result points
+                // let points = result.getRXingResultPoints();
+                // if points != null {
+                let height = rotatedImage.getHeight();
+                // for point in result.getRXingResultPointsMut().iter_mut() {
+                let total_points = result.getRXingResultPoints().len();
+                let points = result.getRXingResultPointsMut();
+                for i in 0..total_points {
+                    // for (int i = 0; i < points.length; i++) {
+                    points[i] = RXingResultPoint::new(
+                        height as f32 - points[i].getY() - 1.0,
+                        points[i].getX(),
+                    );
+                }
+                // }
+
+                Ok(result)
+            } else {
+                return Err(Exceptions::NotFoundException("".to_owned()));
+            }
+        }
+    }
+    fn reset(&mut self) {
+        for reader in self.0.iter_mut() {
+            // for (Reader reader : readers) {
+            reader.reset();
+        }
+    }
+}
diff --git a/src/oned/one_d_reader.rs b/src/oned/one_d_reader.rs
index 3186ad8..bec3a67 100644
--- a/src/oned/one_d_reader.rs
+++ b/src/oned/one_d_reader.rs
@@ -159,7 +159,10 @@ pub trait OneDReader: Reader {
      * @throws NotFoundException if counters cannot be filled entirely from row before running out
      *  of pixels
      */
-    fn recordPattern(row: &BitArray, start: usize, counters: &mut [u32]) -> Result<(), Exceptions> {
+    fn recordPattern(row: &BitArray, start: usize, counters: &mut [u32]) -> Result<(), Exceptions>
+    where
+        Self: Sized,
+    {
         let numCounters = counters.len();
         // Arrays.fill(counters, 0, numCounters, 0);
         counters.fill(0);
@@ -196,7 +199,10 @@ pub trait OneDReader: Reader {
         row: &BitArray,
         start: usize,
         counters: &mut [u32],
-    ) -> Result<(), Exceptions> {
+    ) -> Result<(), Exceptions>
+    where
+        Self: Sized,
+    {
         let mut start = start;
         // This could be more efficient I guess
         let mut numTransitionsLeft = counters.len() as isize;
@@ -226,7 +232,10 @@ pub trait OneDReader: Reader {
      * @param maxIndividualVariance The most any counter can differ before we give up
      * @return ratio of total variance between counters and pattern compared to total pattern size
      */
-    fn patternMatchVariance(counters: &[u32], pattern: &[u32], maxIndividualVariance: f32) -> f32 {
+    fn patternMatchVariance(counters: &[u32], pattern: &[u32], maxIndividualVariance: f32) -> f32
+    where
+        Self: Sized,
+    {
         let mut maxIndividualVariance = maxIndividualVariance;
         let numCounters = counters.len();
         let mut total = 0.0;
diff --git a/src/reader.rs b/src/reader.rs
index bee916c..20e35fb 100644
--- a/src/reader.rs
+++ b/src/reader.rs
@@ -66,5 +66,6 @@ pub trait Reader {
      * Resets any internal state the implementation has after a decode, to prepare it
      * for reuse.
      */
-    fn reset(&mut self);
+    fn reset(&mut self) { /* do nothing */
+    }
 }
diff --git a/tests/Code39BlackBox1TestCase.java b/tests/Code39BlackBox1TestCase.java
deleted file mode 100644
index b2b6553..0000000
--- a/tests/Code39BlackBox1TestCase.java
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright 2008 ZXing authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.google.zxing.oned;
-
-import com.google.zxing.BarcodeFormat;
-import com.google.zxing.MultiFormatReader;
-import com.google.zxing.common.AbstractBlackBoxTestCase;
-
-/**
- * @author Sean Owen
- */
-public final class Code39BlackBox1TestCase extends AbstractBlackBoxTestCase {
-
-  public Code39BlackBox1TestCase() {
-    super("src/test/resources/blackbox/code39-1", new MultiFormatReader(), BarcodeFormat.CODE_39);
-    addTest(4, 4, 0.0f);
-    addTest(4, 4, 180.0f);
-  }
-
-}
\ No newline at end of file
diff --git a/tests/Code39BlackBox3TestCase.java b/tests/Code39BlackBox3TestCase.java
deleted file mode 100644
index 3d35941..0000000
--- a/tests/Code39BlackBox3TestCase.java
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright 2008 ZXing authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.google.zxing.oned;
-
-import com.google.zxing.BarcodeFormat;
-import com.google.zxing.MultiFormatReader;
-import com.google.zxing.common.AbstractBlackBoxTestCase;
-
-/**
- * @author dswitkin@google.com (Daniel Switkin)
- */
-public final class Code39BlackBox3TestCase extends AbstractBlackBoxTestCase {
-
-  public Code39BlackBox3TestCase() {
-    super("src/test/resources/blackbox/code39-3", new MultiFormatReader(), BarcodeFormat.CODE_39);
-    addTest(17, 17, 0.0f);
-    addTest(17, 17, 180.0f);
-  }
-
-}
\ No newline at end of file
diff --git a/tests/Code39ExtendedBlackBox2TestCase.java b/tests/Code39ExtendedBlackBox2TestCase.java
deleted file mode 100644
index 6b045e3..0000000
--- a/tests/Code39ExtendedBlackBox2TestCase.java
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Copyright 2008 ZXing authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.google.zxing.oned;
-
-import com.google.zxing.BarcodeFormat;
-import com.google.zxing.common.AbstractBlackBoxTestCase;
-
-/**
- * @author Sean Owen
- */
-public final class Code39ExtendedBlackBox2TestCase extends AbstractBlackBoxTestCase {
-
-  public Code39ExtendedBlackBox2TestCase() {
-    super("src/test/resources/blackbox/code39-2", new Code39Reader(false, true), BarcodeFormat.CODE_39);
-    addTest(2, 2, 0.0f);
-    addTest(2, 2, 180.0f);
-  }
-
-}
\ No newline at end of file
diff --git a/tests/Code39ExtendedModeTestCase.java b/tests/Code39ExtendedModeTestCase.java
deleted file mode 100644
index a56fe8e..0000000
--- a/tests/Code39ExtendedModeTestCase.java
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright 2017 ZXing authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.google.zxing.oned;
-
-import org.junit.Assert;
-import org.junit.Test;
-
-import com.google.zxing.common.BitMatrix;
-import com.google.zxing.common.BitArray;
-import com.google.zxing.ChecksumException;
-import com.google.zxing.FormatException;
-import com.google.zxing.NotFoundException;
-import com.google.zxing.RXingResult;
-
-/**
- * @author Michael Jahn
- */
-public final class Code39ExtendedModeTestCase extends Assert {
-
-  @SuppressWarnings("checkstyle:lineLength")
-  @Test
-  public void testDecodeExtendedMode() throws FormatException, ChecksumException, NotFoundException {
-    doTest("\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f",
-           "000001001011011010101001001001011001010101101001001001010110101001011010010010010101011010010110100100100101011011010010101001001001010101011001011010010010010101101011001010100100100101010110110010101001001001010101010011011010010010010101101010011010100100100101010110100110101001001001010101011001101010010010010101101010100110100100100101010110101001101001001001010110110101001010010010010101010110100110100100100101011010110100101001001001010101101101001010010010010101010101100110100100100101011010101100101001001001010101101011001010010010010101010110110010100100100101011001010101101001001001010100110101011010010010010101100110101010100100100101010010110101101001001001010110010110101010010010010101001101101010101001001001011010100101101010010010010101101001011010100100100101101101001010101001001001010101100101101010010010010110101100101010010110110100000");
-    doTest(" !\"#$%&'()*+,-./0123456789:;<=>?",
-           "00000100101101101010011010110101001001010010110101001011010010010100101011010010110100100101001011011010010101001001010010101011001011010010010100101101011001010100100101001010110110010101001001010010101010011011010010010100101101010011010100100101001010110100110101001001010010101011001101010010010100101101010100110100100101001010110101001101001010110110110010101101010010010100101101011010010101001101101011010010101101011001010110110110010101010100110101101101001101010101100110101010100101101101101001011010101100101101010010010100101001101101010101001001001010110110010101010010010010101010011011010100100100101101010011010101001001001010110100110101010010010010101011001101010010110110100000");
-    doTest("@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_",
-           "000010010110110101010010010010100110101011011010100101101011010010110110110100101010101100101101101011001010101101100101010101001101101101010011010101101001101010101100110101101010100110101101010011011011010100101010110100110110101101001010110110100101010101100110110101011001010110101100101010110110010110010101011010011010101101100110101010100101101011011001011010101001101101010101001001001011010101001101010010010010101101010011010100100100101101101010010101001001001010101101001101010010010010110101101001010010110110100000");
-    doTest("`abcdefghijklmnopqrstuvwxyz{|}~",
-           "000001001011011010101001001001011001101010101001010010010110101001011010010100100101011010010110100101001001011011010010101001010010010101011001011010010100100101101011001010100101001001010110110010101001010010010101010011011010010100100101101010011010100101001001010110100110101001010010010101011001101010010100100101101010100110100101001001010110101001101001010010010110110101001010010100100101010110100110100101001001011010110100101001010010010101101101001010010100100101010101100110100101001001011010101100101001010010010101101011001010010100100101010110110010100101001001011001010101101001010010010100110101011010010100100101100110101010100101001001010010110101101001010010010110010110101010010100100101001101101010101001001001010110110100101010010010010101010110011010100100100101101010110010101001001001010110101100101010010010010101011011001010010110110100000");
-  }
-
-  private static void doTest(String expectedRXingResult, String encodedRXingResult)
-      throws FormatException, ChecksumException, NotFoundException {
-    Code39Reader sut = new Code39Reader(false, true);
-    BitMatrix matrix = BitMatrix.parse(encodedRXingResult, "1", "0");
-    BitArray row = new BitArray(matrix.getWidth());
-    matrix.getRow(0, row);
-    RXingResult result = sut.decodeRow(0, row, null);
-    assertEquals(expectedRXingResult, result.getText());
-  }
-
-}
diff --git a/tests/codabar_blackbox_1_test_case.rs b/tests/codabar_blackbox_1_test_case.rs
index e632cbb..21f6f84 100644
--- a/tests/codabar_blackbox_1_test_case.rs
+++ b/tests/codabar_blackbox_1_test_case.rs
@@ -14,7 +14,10 @@
  * limitations under the License.
  */
 
-use rxing::{BarcodeFormat, MultiFormatReader, oned::{OneDReader, CodaBarReader}};
+use rxing::{
+    oned::{CodaBarReader, OneDReader},
+    BarcodeFormat, MultiFormatReader,
+};
 
 mod common;
 
diff --git a/tests/code_39_blackbox_reader.rs b/tests/code_39_blackbox_reader.rs
new file mode 100644
index 0000000..61af5e8
--- /dev/null
+++ b/tests/code_39_blackbox_reader.rs
@@ -0,0 +1,67 @@
+/**
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+use rxing::{
+    oned::{CodaBarReader, Code39Reader, OneDReader},
+    BarcodeFormat, MultiFormatReader,
+};
+
+mod common;
+
+/**
+ * @author Sean Owen
+ */
+#[test]
+fn code39_black_box1_test_case() {
+    let mut tester = common::AbstractBlackBoxTestCase::new(
+        "test_resources/blackbox/code39-1",
+        MultiFormatReader::default(),
+        BarcodeFormat::CODE_39,
+    );
+
+    // super("src/test/resources/blackbox/code39-1", new MultiFormatReader(), BarcodeFormat.CODE_39);
+    tester.add_test(4, 4, 0.0);
+    tester.add_test(4, 4, 180.0);
+
+    tester.test_black_box();
+}
+
+/**
+ * @author dswitkin@google.com (Daniel Switkin)
+ */
+#[test]
+fn code39_black_box3_test_case() {
+    let mut tester = common::AbstractBlackBoxTestCase::new(
+        "test_resources/blackbox/code39-3",
+        MultiFormatReader::default(),
+        BarcodeFormat::CODE_39,
+    );
+
+    // super("src/test/resources/blackbox/code39-3", new MultiFormatReader(), BarcodeFormat.CODE_39);
+    tester.add_test(17, 17, 0.0);
+    tester.add_test(17, 17, 180.0);
+
+    tester.test_black_box();
+}
+
+/**
+ * @author Sean Owen
+ */
+#[test]
+fn code39_extended_black_box2_test_case() {
+    let mut tester = common::AbstractBlackBoxTestCase::new(
+        "test_resources/blackbox/code39-2",
+        Code39Reader::with_all_config(false, true),
+        BarcodeFormat::CODE_39,
+    );
+
+    // super("src/test/resources/blackbox/code39-2", new Code39Reader(false, true), BarcodeFormat.CODE_39);
+    tester.add_test(2, 2, 0.0);
+    tester.add_test(2, 2, 180.0);
+
+    tester.test_black_box();
+}