diff --git a/android/src/com/google/zxing/client/android/result/AddressBookResultHandler.java b/android/src/com/google/zxing/client/android/result/AddressBookResultHandler.java
index d6070c81ae..a633805610 100644
--- a/android/src/com/google/zxing/client/android/result/AddressBookResultHandler.java
+++ b/android/src/com/google/zxing/client/android/result/AddressBookResultHandler.java
@@ -21,6 +21,7 @@
 import com.google.zxing.client.result.ParsedResult;
 
 import android.app.Activity;
+import android.graphics.Typeface;
 import android.telephony.PhoneNumberUtils;
 import android.text.Spannable;
 import android.text.SpannableString;
@@ -205,7 +206,7 @@ public CharSequence getDisplayContents() {
     if (namesLength > 0) {
       // Bold the full name to make it stand out a bit.
       Spannable styled = new SpannableString(contents.toString());
-      styled.setSpan(new StyleSpan(android.graphics.Typeface.BOLD), 0, namesLength, 0);
+      styled.setSpan(new StyleSpan(Typeface.BOLD), 0, namesLength, 0);
       return styled;
     } else {
       return contents.toString();
diff --git a/androidtest/src/com/google/zxing/client/androidtest/BenchmarkItem.java b/androidtest/src/com/google/zxing/client/androidtest/BenchmarkItem.java
index fd728bc705..5418b13afa 100644
--- a/androidtest/src/com/google/zxing/client/androidtest/BenchmarkItem.java
+++ b/androidtest/src/com/google/zxing/client/androidtest/BenchmarkItem.java
@@ -53,7 +53,7 @@ void setFormat(BarcodeFormat format) {
   @Override
   public String toString() {
     StringBuilder result = new StringBuilder(30);
-    result.append(decoded ? "DECODED " + format.toString() + ": " : "FAILED: ");
+    result.append(decoded ? "DECODED " + format + ": " : "FAILED: ");
     result.append(path);
     result.append(" (");
     result.append(getAverageTime());
diff --git a/core/src/main/java/com/google/zxing/Reader.java b/core/src/main/java/com/google/zxing/Reader.java
index bd3732e02e..7208c94d9e 100644
--- a/core/src/main/java/com/google/zxing/Reader.java
+++ b/core/src/main/java/com/google/zxing/Reader.java
@@ -24,7 +24,7 @@
  * decode a QR code. The decoder may optionally receive hints from the caller which may help
  * it decode more quickly or accurately.
  *
- * See {@link com.google.zxing.MultiFormatReader}, which attempts to determine what barcode
+ * See {@link MultiFormatReader}, which attempts to determine what barcode
  * format is present within the image as well, and then decodes it accordingly.
  *
  * @author Sean Owen
@@ -48,7 +48,7 @@ public interface Reader {
    * hints, each possibly associated to some data, which may help the implementation decode.
    *
    * @param image image of barcode to decode
-   * @param hints passed as a {@link java.util.Map} from {@link com.google.zxing.DecodeHintType}
+   * @param hints passed as a {@link java.util.Map} from {@link DecodeHintType}
    * to arbitrary data. The
    * meaning of the data depends upon the hint type. The implementation may or may not do
    * anything with these hints.
diff --git a/core/src/main/java/com/google/zxing/aztec/decoder/Decoder.java b/core/src/main/java/com/google/zxing/aztec/decoder/Decoder.java
index d0304a9a15..142be41a9b 100644
--- a/core/src/main/java/com/google/zxing/aztec/decoder/Decoder.java
+++ b/core/src/main/java/com/google/zxing/aztec/decoder/Decoder.java
@@ -271,7 +271,7 @@ private boolean[] correctBits(boolean[] rawbits) throws FormatException {
   boolean[] extractBits(BitMatrix matrix) {
     boolean compact = ddata.isCompact();
     int layers = ddata.getNbLayers();
-    int baseMatrixSize = compact ? 11 + layers * 4 : 14 + layers * 4; // not including alignment lines
+    int baseMatrixSize = (compact ? 11 : 14) + layers * 4; // not including alignment lines
     int[] alignmentMap = new int[baseMatrixSize];
     boolean[] rawbits = new boolean[totalBitsInLayer(layers, compact)];
 
@@ -290,7 +290,7 @@ boolean[] extractBits(BitMatrix matrix) {
       }
     }
     for (int i = 0, rowOffset = 0; i < layers; i++) {
-      int rowSize = compact ? (layers - i) * 4 + 9 : (layers - i) * 4 + 12;
+      int rowSize = (layers - i) * 4 + (compact ? 9 : 12);
       // The top-left most point of this layer is <low, low> (not including alignment lines)
       int low = i * 2;
       // The bottom-right most point of this layer is <high, high> (not including alignment lines)
diff --git a/core/src/main/java/com/google/zxing/aztec/encoder/Encoder.java b/core/src/main/java/com/google/zxing/aztec/encoder/Encoder.java
index 3a36554115..518daecee0 100644
--- a/core/src/main/java/com/google/zxing/aztec/encoder/Encoder.java
+++ b/core/src/main/java/com/google/zxing/aztec/encoder/Encoder.java
@@ -129,7 +129,7 @@ public static AztecCode encode(byte[] data, int minECCPercent, int userSpecified
     BitArray modeMessage = generateModeMessage(compact, layers, messageSizeInWords);
 
     // allocate symbol
-    int baseMatrixSize = compact ? 11 + layers * 4 : 14 + layers * 4; // not including alignment lines
+    int baseMatrixSize = (compact ? 11 : 14) + layers * 4; // not including alignment lines
     int[] alignmentMap = new int[baseMatrixSize];
     int matrixSize;
     if (compact) {
@@ -152,7 +152,7 @@ public static AztecCode encode(byte[] data, int minECCPercent, int userSpecified
     
     // draw data bits
     for (int i = 0, rowOffset = 0; i < layers; i++) {
-      int rowSize = compact ? (layers - i) * 4 + 9 : (layers - i) * 4 + 12;
+      int rowSize = (layers - i) * 4 + (compact ? 9 : 12);
       for (int j = 0; j < rowSize; j++) {
         int columnOffset = j * 2;
         for (int k = 0; k < 2; k++) {
diff --git a/core/src/main/java/com/google/zxing/common/BitArray.java b/core/src/main/java/com/google/zxing/common/BitArray.java
index 0af7dd72ce..6177a8ceda 100644
--- a/core/src/main/java/com/google/zxing/common/BitArray.java
+++ b/core/src/main/java/com/google/zxing/common/BitArray.java
@@ -307,7 +307,7 @@ public int[] getBitArray() {
   public void reverse() {
     int[] newBits = new int[bits.length];
     // reverse all int's first
-    int len = ((size-1) / 32);
+    int len = (size - 1) / 32;
     int oldBitsLen = len + 1;
     for (int i = 0; i < oldBitsLen; i++) {
       long x = (long) bits[i];
diff --git a/core/src/main/java/com/google/zxing/common/detector/MonochromeRectangleDetector.java b/core/src/main/java/com/google/zxing/common/detector/MonochromeRectangleDetector.java
index 1ce8452ee2..6f58452ccf 100644
--- a/core/src/main/java/com/google/zxing/common/detector/MonochromeRectangleDetector.java
+++ b/core/src/main/java/com/google/zxing/common/detector/MonochromeRectangleDetector.java
@@ -128,7 +128,7 @@ private ResultPoint findCornerFromCenter(int centerX,
           if (lastRange[0] < centerX) {
             if (lastRange[1] > centerX) {
               // straddle, choose one or the other based on direction
-              return new ResultPoint(deltaY > 0 ? lastRange[0] : lastRange[1], lastY);
+              return new ResultPoint(lastRange[deltaY > 0 ? 0 : 1], lastY);
             }
             return new ResultPoint(lastRange[0], lastY);
           } else {
@@ -138,7 +138,7 @@ private ResultPoint findCornerFromCenter(int centerX,
           int lastX = x - deltaX;
           if (lastRange[0] < centerY) {
             if (lastRange[1] > centerY) {
-              return new ResultPoint(lastX, deltaX < 0 ? lastRange[0] : lastRange[1]);
+              return new ResultPoint(lastX, lastRange[deltaX < 0 ? 0 : 1]);
             }
             return new ResultPoint(lastX, lastRange[0]);
           } else {
diff --git a/core/src/main/java/com/google/zxing/datamatrix/encoder/DefaultPlacement.java b/core/src/main/java/com/google/zxing/datamatrix/encoder/DefaultPlacement.java
index 5efb5a5800..dc5045c22e 100644
--- a/core/src/main/java/com/google/zxing/datamatrix/encoder/DefaultPlacement.java
+++ b/core/src/main/java/com/google/zxing/datamatrix/encoder/DefaultPlacement.java
@@ -60,7 +60,7 @@ public final boolean getBit(int col, int row) {
   }
 
   final void setBit(int col, int row, boolean bit) {
-    bits[row * numcols + col] = bit ? (byte) 1 : (byte) 0;
+    bits[row * numcols + col] = (byte) (bit ? 1 : 0);
   }
 
   final boolean hasBit(int col, int row) {
diff --git a/core/src/main/java/com/google/zxing/datamatrix/encoder/HighLevelEncoder.java b/core/src/main/java/com/google/zxing/datamatrix/encoder/HighLevelEncoder.java
index caec109708..b7a70ec0ec 100644
--- a/core/src/main/java/com/google/zxing/datamatrix/encoder/HighLevelEncoder.java
+++ b/core/src/main/java/com/google/zxing/datamatrix/encoder/HighLevelEncoder.java
@@ -128,7 +128,7 @@ public static byte[] getBytesForMessage(String msg) {
   private static char randomize253State(char ch, int codewordPosition) {
     int pseudoRandom = ((149 * codewordPosition) % 253) + 1;
     int tempVariable = ch + pseudoRandom;
-    return tempVariable <= 254 ? (char) tempVariable : (char) (tempVariable - 254);
+    return (char) (tempVariable <= 254 ? tempVariable : tempVariable - 254);
   }
 
   /**
diff --git a/core/src/main/java/com/google/zxing/maxicode/decoder/DecodedBitStreamParser.java b/core/src/main/java/com/google/zxing/maxicode/decoder/DecodedBitStreamParser.java
index 4744d4db23..eb40362632 100644
--- a/core/src/main/java/com/google/zxing/maxicode/decoder/DecodedBitStreamParser.java
+++ b/core/src/main/java/com/google/zxing/maxicode/decoder/DecodedBitStreamParser.java
@@ -45,8 +45,6 @@ final class DecodedBitStreamParser {
   private static final char FS = '\u001C';
   private static final char GS = '\u001D';
   private static final char RS = '\u001E';
-  private static final NumberFormat NINE_DIGITS = new DecimalFormat("000000000");
-  private static final NumberFormat THREE_DIGITS = new DecimalFormat("000");
 
   private static final String[] SETS = {
     "\nABCDEFGHIJKLMNOPQRSTUVWXYZ"+ECI+FS+GS+RS+NS+' '+PAD+"\"#$%&'()*+,-./0123456789:"+SHIFTB+SHIFTC+SHIFTD+SHIFTE+LATCHB,
@@ -73,8 +71,9 @@ static DecoderResult decode(byte[] bytes, int mode) {
         } else {
           postcode = getPostCode3(bytes);
         }
-        String country = THREE_DIGITS.format(getCountry(bytes));
-        String service = THREE_DIGITS.format(getServiceClass(bytes));
+        NumberFormat threeDigits = new DecimalFormat("000");
+        String country = threeDigits.format(getCountry(bytes));
+        String service = threeDigits.format(getServiceClass(bytes));
         result.append(getMessage(bytes, 10, 84));
         if (result.toString().startsWith("[)>"+RS+"01"+GS)) {
           result.insert(9, postcode + GS + country + GS + service + GS);
@@ -175,7 +174,7 @@ private static String getMessage(byte[] bytes, int start, int len) {
           break;
         case NS:
           int nsval = (bytes[++i] << 24) + (bytes[++i] << 18) + (bytes[++i] << 12) + (bytes[++i] << 6) + bytes[++i];
-          sb.append(NINE_DIGITS.format(nsval));
+          sb.append(new DecimalFormat("000000000").format(nsval));
           break;
         case LOCK:
           shift = -1;
diff --git a/core/src/main/java/com/google/zxing/multi/qrcode/QRCodeMultiReader.java b/core/src/main/java/com/google/zxing/multi/qrcode/QRCodeMultiReader.java
index 7f4a531bc1..083fcf3e46 100644
--- a/core/src/main/java/com/google/zxing/multi/qrcode/QRCodeMultiReader.java
+++ b/core/src/main/java/com/google/zxing/multi/qrcode/QRCodeMultiReader.java
@@ -166,8 +166,8 @@ private static List<Result> processStructuredAppend(List<Result> results) {
   private static final class SAComparator implements Comparator<Result>, Serializable {
     @Override
     public int compare(Result a, Result b) {
-      int aNumber = (int) (a.getResultMetadata().get(ResultMetadataType.STRUCTURED_APPEND_SEQUENCE));
-      int bNumber = (int) (b.getResultMetadata().get(ResultMetadataType.STRUCTURED_APPEND_SEQUENCE));
+      int aNumber = (int) a.getResultMetadata().get(ResultMetadataType.STRUCTURED_APPEND_SEQUENCE);
+      int bNumber = (int) b.getResultMetadata().get(ResultMetadataType.STRUCTURED_APPEND_SEQUENCE);
       if (aNumber < bNumber) {
         return -1;
       }
diff --git a/core/src/main/java/com/google/zxing/pdf417/decoder/PDF417ScanningDecoder.java b/core/src/main/java/com/google/zxing/pdf417/decoder/PDF417ScanningDecoder.java
index b477b7bb30..e30e1d4ad4 100644
--- a/core/src/main/java/com/google/zxing/pdf417/decoder/PDF417ScanningDecoder.java
+++ b/core/src/main/java/com/google/zxing/pdf417/decoder/PDF417ScanningDecoder.java
@@ -468,8 +468,8 @@ private static int[] getModuleBitCount(BitMatrix image,
     int moduleNumber = 0;
     int increment = leftToRight ? 1 : -1;
     boolean previousPixelValue = leftToRight;
-    while (((leftToRight && imageColumn < maxColumn) || (!leftToRight && imageColumn >= minColumn)) &&
-        moduleNumber < moduleBitCount.length) {
+    while ((leftToRight ? imageColumn < maxColumn : imageColumn >= minColumn) &&
+           moduleNumber < moduleBitCount.length) {
       if (image.get(imageColumn, imageRow) == previousPixelValue) {
         moduleBitCount[moduleNumber]++;
         imageColumn += increment;
@@ -479,7 +479,8 @@ private static int[] getModuleBitCount(BitMatrix image,
       }
     }
     if (moduleNumber == moduleBitCount.length ||
-        (((leftToRight && imageColumn == maxColumn) || (!leftToRight && imageColumn == minColumn)) && moduleNumber == moduleBitCount.length - 1)) {
+        ((imageColumn == (leftToRight ? maxColumn : minColumn)) &&
+         moduleNumber == moduleBitCount.length - 1)) {
       return moduleBitCount;
     }
     return null;
@@ -499,8 +500,8 @@ private static int adjustCodewordStartColumn(BitMatrix image,
     int increment = leftToRight ? -1 : 1;
     // there should be no black pixels before the start column. If there are, then we need to start earlier.
     for (int i = 0; i < 2; i++) {
-      while (((leftToRight && correctedStartColumn >= minColumn) || (!leftToRight && correctedStartColumn < maxColumn)) &&
-          leftToRight == image.get(correctedStartColumn, imageRow)) {
+      while ((leftToRight ? correctedStartColumn >= minColumn : correctedStartColumn < maxColumn) &&
+             leftToRight == image.get(correctedStartColumn, imageRow)) {
         if (Math.abs(codewordStartColumn - correctedStartColumn) > CODEWORD_SKEW_SIZE) {
           return codewordStartColumn;
         }
diff --git a/core/src/main/java/com/google/zxing/pdf417/encoder/PDF417HighLevelEncoder.java b/core/src/main/java/com/google/zxing/pdf417/encoder/PDF417HighLevelEncoder.java
index 125017c000..0f0e3a8381 100644
--- a/core/src/main/java/com/google/zxing/pdf417/encoder/PDF417HighLevelEncoder.java
+++ b/core/src/main/java/com/google/zxing/pdf417/encoder/PDF417HighLevelEncoder.java
@@ -379,11 +379,10 @@ private static void encodeBinary(byte[] bytes,
     if (count == 1 && startmode == TEXT_COMPACTION) {
       sb.append((char) SHIFT_TO_BYTE);
     } else {
-      boolean sixpack = ((count % 6) == 0);
-      if (sixpack) {
-        sb.append((char)LATCH_TO_BYTE);
+      if ((count % 6) == 0) {
+        sb.append((char) LATCH_TO_BYTE);
       } else {
-        sb.append((char)LATCH_TO_BYTE_PADDED);
+        sb.append((char) LATCH_TO_BYTE_PADDED);
       }
     }
 
@@ -534,7 +533,7 @@ private static int determineConsecutiveTextCount(CharSequence msg, int startpos)
    */
   private static int determineConsecutiveBinaryCount(String msg, int startpos, Charset encoding)
       throws WriterException {
-    final CharsetEncoder encoder = encoding.newEncoder();
+    CharsetEncoder encoder = encoding.newEncoder();
     int len = msg.length();
     int idx = startpos;
     while (idx < len) {
diff --git a/core/src/main/java/com/google/zxing/qrcode/decoder/FormatInformation.java b/core/src/main/java/com/google/zxing/qrcode/decoder/FormatInformation.java
index 894e321754..699e2a72c1 100644
--- a/core/src/main/java/com/google/zxing/qrcode/decoder/FormatInformation.java
+++ b/core/src/main/java/com/google/zxing/qrcode/decoder/FormatInformation.java
@@ -85,14 +85,15 @@ private FormatInformation(int formatInfo) {
   static int numBitsDiffering(int a, int b) {
     a ^= b; // a now has a 1 bit exactly where its bit differs with b's
     // Count bits set quickly with a series of lookups:
-    return BITS_SET_IN_HALF_BYTE[a & 0x0F] +
-        BITS_SET_IN_HALF_BYTE[(a >>> 4 & 0x0F)] +
-        BITS_SET_IN_HALF_BYTE[(a >>> 8 & 0x0F)] +
-        BITS_SET_IN_HALF_BYTE[(a >>> 12 & 0x0F)] +
-        BITS_SET_IN_HALF_BYTE[(a >>> 16 & 0x0F)] +
-        BITS_SET_IN_HALF_BYTE[(a >>> 20 & 0x0F)] +
-        BITS_SET_IN_HALF_BYTE[(a >>> 24 & 0x0F)] +
-        BITS_SET_IN_HALF_BYTE[(a >>> 28 & 0x0F)];
+    return
+        BITS_SET_IN_HALF_BYTE[a & 0x0F] +
+        BITS_SET_IN_HALF_BYTE[(a >>>  4) & 0x0F] +
+        BITS_SET_IN_HALF_BYTE[(a >>>  8) & 0x0F] +
+        BITS_SET_IN_HALF_BYTE[(a >>> 12) & 0x0F] +
+        BITS_SET_IN_HALF_BYTE[(a >>> 16) & 0x0F] +
+        BITS_SET_IN_HALF_BYTE[(a >>> 20) & 0x0F] +
+        BITS_SET_IN_HALF_BYTE[(a >>> 24) & 0x0F] +
+        BITS_SET_IN_HALF_BYTE[(a >>> 28) & 0x0F];
   }
 
   /**
diff --git a/core/src/main/java/com/google/zxing/qrcode/detector/AlignmentPatternFinder.java b/core/src/main/java/com/google/zxing/qrcode/detector/AlignmentPatternFinder.java
index b6e1b5dbe3..062d4d7734 100644
--- a/core/src/main/java/com/google/zxing/qrcode/detector/AlignmentPatternFinder.java
+++ b/core/src/main/java/com/google/zxing/qrcode/detector/AlignmentPatternFinder.java
@@ -110,7 +110,7 @@ AlignmentPattern find() throws NotFoundException {
         if (image.get(j, i)) {
           // Black pixel
           if (currentState == 1) { // Counting black pixels
-            stateCount[currentState]++;
+            stateCount[1]++;
           } else { // Counting white pixels
             if (currentState == 2) { // A winner?
               if (foundPatternCross(stateCount)) { // Yes
diff --git a/core/src/main/java/com/google/zxing/qrcode/encoder/MaskUtil.java b/core/src/main/java/com/google/zxing/qrcode/encoder/MaskUtil.java
index b2204d4a97..b96a2003dc 100644
--- a/core/src/main/java/com/google/zxing/qrcode/encoder/MaskUtil.java
+++ b/core/src/main/java/com/google/zxing/qrcode/encoder/MaskUtil.java
@@ -103,8 +103,10 @@ static int applyMaskPenaltyRule3(ByteMatrix matrix) {
   }
 
   private static boolean isWhiteHorizontal(byte[] rowArray, int from, int to) {
+    from = Math.max(from, 0);
+    to = Math.min(to, rowArray.length);
     for (int i = from; i < to; i++) {
-      if (i >= 0 && i < rowArray.length && rowArray[i] == 1) {
+      if (rowArray[i] == 1) {
         return false;
       }
     }
@@ -112,8 +114,10 @@ private static boolean isWhiteHorizontal(byte[] rowArray, int from, int to) {
   }
 
   private static boolean isWhiteVertical(byte[][] array, int col, int from, int to) {
+    from = Math.max(from, 0);
+    to = Math.min(to, array.length);
     for (int i = from; i < to; i++) {
-      if (i >= 0 && i < array.length && array[i][col] == 1) {
+      if (array[i][col] == 1) {
         return false;
       }
     }
diff --git a/core/src/test/java/com/google/zxing/client/result/GeoParsedResultTestCase.java b/core/src/test/java/com/google/zxing/client/result/GeoParsedResultTestCase.java
index 91b079de63..803cc0bb02 100644
--- a/core/src/test/java/com/google/zxing/client/result/GeoParsedResultTestCase.java
+++ b/core/src/test/java/com/google/zxing/client/result/GeoParsedResultTestCase.java
@@ -22,7 +22,7 @@
 import org.junit.Test;
 
 /**
- * Tests {@link com.google.zxing.client.result.GeoParsedResult}.
+ * Tests {@link GeoParsedResult}.
  *
  * @author Sean Owen
  */
diff --git a/core/src/test/java/com/google/zxing/qrcode/decoder/DecodedBitStreamParserTestCase.java b/core/src/test/java/com/google/zxing/qrcode/decoder/DecodedBitStreamParserTestCase.java
index f1ed5d72d4..220b2b7774 100644
--- a/core/src/test/java/com/google/zxing/qrcode/decoder/DecodedBitStreamParserTestCase.java
+++ b/core/src/test/java/com/google/zxing/qrcode/decoder/DecodedBitStreamParserTestCase.java
@@ -21,7 +21,7 @@
 import org.junit.Test;
 
 /**
- * Tests {@link com.google.zxing.qrcode.decoder.DecodedBitStreamParser}.
+ * Tests {@link DecodedBitStreamParser}.
  *
  * @author Sean Owen
  */
diff --git a/javase/pom.xml b/javase/pom.xml
index c8dffbcc72..97a40652be 100644
--- a/javase/pom.xml
+++ b/javase/pom.xml
@@ -34,7 +34,7 @@
     <dependency>
       <groupId>com.github.jai-imageio</groupId>
       <artifactId>jai-imageio-core</artifactId>
-      <version>1.3.0</version>
+      <version>1.3.1</version>
     </dependency>
   </dependencies>
 
diff --git a/javase/src/main/java/com/google/zxing/client/j2se/CommandLineEncoder.java b/javase/src/main/java/com/google/zxing/client/j2se/CommandLineEncoder.java
index c4501c3cdd..4e5e9ac8db 100644
--- a/javase/src/main/java/com/google/zxing/client/j2se/CommandLineEncoder.java
+++ b/javase/src/main/java/com/google/zxing/client/j2se/CommandLineEncoder.java
@@ -23,7 +23,7 @@
 import com.beust.jcommander.JCommander;
 
 import java.nio.file.Paths;
-import java.util.HashMap;
+import java.util.EnumMap;
 import java.util.Locale;
 import java.util.Map;
 
@@ -50,7 +50,7 @@ public static void main(String[] args) throws Exception {
     if (EncoderConfig.DEFAULT_OUTPUT_FILE_BASE.equals(outFileString)) {
       outFileString += '.' + config.imageFormat.toLowerCase(Locale.ENGLISH);
     }
-    Map<EncodeHintType, Object> hints = new HashMap<>();
+    Map<EncodeHintType, Object> hints = new EnumMap<>(EncodeHintType.class);
     if (config.errorCorrectionLevel != null) {
       hints.put(EncodeHintType.ERROR_CORRECTION, config.errorCorrectionLevel);
     }
diff --git a/pom.xml b/pom.xml
index 15c7a8e9c4..372db19951 100644
--- a/pom.xml
+++ b/pom.xml
@@ -44,7 +44,7 @@
       <dependency>
         <groupId>com.google.guava</groupId>
         <artifactId>guava</artifactId>
-        <version>18.0</version>
+        <version>19.0</version>
       </dependency>
       <dependency>
         <groupId>com.google.android</groupId>
@@ -168,7 +168,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-compiler-plugin</artifactId>
-          <version>3.3</version>
+          <version>3.5</version>
           <configuration>
             <source>${java.version}</source>
             <target>${java.version}</target>
@@ -333,7 +333,7 @@
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-surefire-plugin</artifactId>
-          <version>2.19</version>
+          <version>2.19.1</version>
           <configuration>
             <forkCount>0.5C</forkCount>
             <systemPropertyVariables>
diff --git a/zxing.appspot.com/pom.xml b/zxing.appspot.com/pom.xml
index 93220a2616..2d8455defa 100644
--- a/zxing.appspot.com/pom.xml
+++ b/zxing.appspot.com/pom.xml
@@ -37,7 +37,7 @@
   </parent>
 
   <properties>
-    <gwt.version>2.7.0</gwt.version>
+    <gwt.version>2.8.0-beta1</gwt.version>
   </properties>
 
   <build>
diff --git a/zxingorg/pom.xml b/zxingorg/pom.xml
index 637b539832..dda9155b4d 100644
--- a/zxingorg/pom.xml
+++ b/zxingorg/pom.xml
@@ -61,7 +61,7 @@
       <plugin>
         <groupId>org.eclipse.jetty</groupId>
         <artifactId>jetty-maven-plugin</artifactId>
-        <version>9.3.6.v20151106</version>
+        <version>9.3.7.v20160115</version>
         <configuration>
           <webAppSourceDirectory>src/web</webAppSourceDirectory>
         </configuration>