diff --git a/app/src/androidTest/java/org/fdroid/fdroid/Netstat.java b/app/src/androidTest/java/org/fdroid/fdroid/Netstat.java
index d7836f50d..dbd10ccb1 100644
--- a/app/src/androidTest/java/org/fdroid/fdroid/Netstat.java
+++ b/app/src/androidTest/java/org/fdroid/fdroid/Netstat.java
@@ -123,7 +123,7 @@ public class Netstat {
         try {
             BufferedReader in = new BufferedReader(new FileReader("/proc/net/tcp"));
             String line;
-            while ((line = in.readLine()) != null) {
+            while ((line = in.readLine()) != null) { // NOPMD
                 Matcher matcher = NET_PATTERN.matcher(line);
                 if (matcher.find()) {
                     final Connection c = new Connection();
@@ -156,7 +156,7 @@ public class Netstat {
         try {
             BufferedReader in = new BufferedReader(new FileReader("/proc/net/udp"));
             String line;
-            while ((line = in.readLine()) != null) {
+            while ((line = in.readLine()) != null) { // NOPMD
                 Matcher matcher = NET_PATTERN.matcher(line);
                 if (matcher.find()) {
                     final Connection c = new Connection();
@@ -189,7 +189,7 @@ public class Netstat {
         try {
             BufferedReader in = new BufferedReader(new FileReader("/proc/net/raw"));
             String line;
-            while ((line = in.readLine()) != null) {
+            while ((line = in.readLine()) != null) { // NOPMD
                 Matcher matcher = NET_PATTERN.matcher(line);
                 if (matcher.find()) {
                     final Connection c = new Connection();
diff --git a/app/src/main/java/org/fdroid/fdroid/Hasher.java b/app/src/main/java/org/fdroid/fdroid/Hasher.java
index 4f4e34abc..ade76c33f 100644
--- a/app/src/main/java/org/fdroid/fdroid/Hasher.java
+++ b/app/src/main/java/org/fdroid/fdroid/Hasher.java
@@ -68,7 +68,7 @@ public class Hasher {
             InputStream input = null;
             try {
                 input = new BufferedInputStream(new FileInputStream(file));
-                while ((read = input.read(buffer)) > 0) {
+                while ((read = input.read(buffer)) > 0) { // NOPMD Avoid assignments in operands
                     digest.update(buffer, 0, read);
                 }
             } catch (Exception e) {
diff --git a/app/src/main/java/org/fdroid/fdroid/Provisioner.java b/app/src/main/java/org/fdroid/fdroid/Provisioner.java
index d2490b52d..2ae8d49bb 100644
--- a/app/src/main/java/org/fdroid/fdroid/Provisioner.java
+++ b/app/src/main/java/org/fdroid/fdroid/Provisioner.java
@@ -173,7 +173,7 @@ public class Provisioner {
                 try {
                     in = new ZipInputStream(new FileInputStream(file));
                     ZipEntry zipEntry;
-                    while ((zipEntry = in.getNextEntry()) != null) {
+                    while ((zipEntry = in.getNextEntry()) != null) { // NOPMD Avoid assignments in operands
                         String name = zipEntry.getName();
                         if ("repo_provision.json".equals(name)) {
                             if (plain.getRepositoryProvision() != null) {
diff --git a/app/src/main/java/org/fdroid/fdroid/Utils.java b/app/src/main/java/org/fdroid/fdroid/Utils.java
index fe38e0cc1..e1bcba986 100644
--- a/app/src/main/java/org/fdroid/fdroid/Utils.java
+++ b/app/src/main/java/org/fdroid/fdroid/Utils.java
@@ -524,7 +524,7 @@ public final class Utils {
 
             byte[] dataBytes = new byte[8192];
             int nread;
-            while ((nread = bis.read(dataBytes)) != -1) {
+            while ((nread = bis.read(dataBytes)) != -1) { // NOPMD Avoid assignments in operands
                 md.update(dataBytes, 0, nread);
             }
 
diff --git a/app/src/main/java/org/fdroid/fdroid/views/updates/items/AppUpdateData.java b/app/src/main/java/org/fdroid/fdroid/views/updates/items/AppUpdateData.java
index ff377d762..303319e61 100644
--- a/app/src/main/java/org/fdroid/fdroid/views/updates/items/AppUpdateData.java
+++ b/app/src/main/java/org/fdroid/fdroid/views/updates/items/AppUpdateData.java
@@ -9,7 +9,7 @@ import android.app.Activity;
  * org.fdroid.fdroid.views.updates.UpdatesAdapter#delegatesManager}
  * to specify a data type more specific than just {@link Object}.
  */
-public abstract class AppUpdateData {
+public abstract class AppUpdateData { // NOPMD This abstract class does not have any abstract methods
     public final Activity activity;
 
     public AppUpdateData(Activity activity) {
diff --git a/app/src/test/java/org/fdroid/fdroid/data/FDroidProviderTest.java b/app/src/test/java/org/fdroid/fdroid/data/FDroidProviderTest.java
index 54c3b5f9e..d2335811d 100644
--- a/app/src/test/java/org/fdroid/fdroid/data/FDroidProviderTest.java
+++ b/app/src/test/java/org/fdroid/fdroid/data/FDroidProviderTest.java
@@ -9,7 +9,7 @@ import org.robolectric.RuntimeEnvironment;
 import org.robolectric.Shadows;
 import org.robolectric.shadows.ShadowContentResolver;
 
-public abstract class FDroidProviderTest {
+public abstract class FDroidProviderTest { // NOPMD This abstract class does not have any abstract methods
 
     protected ShadowContentResolver contentResolver;
     protected ContextWrapper context;