diff --git a/scm-core/src/main/java/sonia/scm/BadRequestException.java b/scm-core/src/main/java/sonia/scm/BadRequestException.java
new file mode 100644
index 0000000000..544ed75a0b
--- /dev/null
+++ b/scm-core/src/main/java/sonia/scm/BadRequestException.java
@@ -0,0 +1,9 @@
+package sonia.scm;
+
+import java.util.List;
+
+public abstract class BadRequestException extends ExceptionWithContext {
+  public BadRequestException(List<ContextEntry> context, String message) {
+    super(context, message);
+  }
+}
diff --git a/scm-core/src/main/java/sonia/scm/NotSupportedFeatureException.java b/scm-core/src/main/java/sonia/scm/FeatureNotSupportedException.java
similarity index 88%
rename from scm-core/src/main/java/sonia/scm/NotSupportedFeatureException.java
rename to scm-core/src/main/java/sonia/scm/FeatureNotSupportedException.java
index daf996ee6c..2d64af4318 100644
--- a/scm-core/src/main/java/sonia/scm/NotSupportedFeatureException.java
+++ b/scm-core/src/main/java/sonia/scm/FeatureNotSupportedException.java
@@ -40,13 +40,14 @@ import java.util.Collections;
  * @author Sebastian Sdorra
  * @version 1.6
  */
-public class NotSupportedFeatureException extends ExceptionWithContext {
+@SuppressWarnings("squid:MaximumInheritanceDepth") // exceptions have a deep inheritance depth themselves; therefore we accept this here
+public class FeatureNotSupportedException extends BadRequestException {
 
   private static final long serialVersionUID = 256498734456613496L;
 
   private static final String CODE = "9SR8G0kmU1";
 
-  public NotSupportedFeatureException(String feature)
+  public FeatureNotSupportedException(String feature)
   {
     super(Collections.emptyList(),createMessage(feature));
   }
diff --git a/scm-core/src/main/java/sonia/scm/repository/AbstractRepositoryHandler.java b/scm-core/src/main/java/sonia/scm/repository/AbstractRepositoryHandler.java
index a3e8a1da73..1e9cc3d374 100644
--- a/scm-core/src/main/java/sonia/scm/repository/AbstractRepositoryHandler.java
+++ b/scm-core/src/main/java/sonia/scm/repository/AbstractRepositoryHandler.java
@@ -38,7 +38,7 @@ package sonia.scm.repository;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import sonia.scm.NotSupportedFeatureException;
+import sonia.scm.FeatureNotSupportedException;
 import sonia.scm.SCMContextProvider;
 import sonia.scm.event.ScmEventBus;
 
@@ -167,12 +167,12 @@ public abstract class AbstractRepositoryHandler<C extends RepositoryConfig>
    *
    * @return
    *
-   * @throws NotSupportedFeatureException
+   * @throws FeatureNotSupportedException
    */
   @Override
   public ImportHandler getImportHandler()
   {
-    throw new NotSupportedFeatureException("import");
+    throw new FeatureNotSupportedException("import");
   }
 
   /**
diff --git a/scm-core/src/main/java/sonia/scm/repository/RepositoryHandler.java b/scm-core/src/main/java/sonia/scm/repository/RepositoryHandler.java
index cb19cb7f5e..aaa090827a 100644
--- a/scm-core/src/main/java/sonia/scm/repository/RepositoryHandler.java
+++ b/scm-core/src/main/java/sonia/scm/repository/RepositoryHandler.java
@@ -36,7 +36,7 @@ package sonia.scm.repository;
 //~--- non-JDK imports --------------------------------------------------------
 
 import sonia.scm.Handler;
-import sonia.scm.NotSupportedFeatureException;
+import sonia.scm.FeatureNotSupportedException;
 import sonia.scm.plugin.ExtensionPoint;
 
 /**
@@ -59,9 +59,9 @@ public interface RepositoryHandler
    * @return {@link ImportHandler} for the repository type of this handler
    * @since 1.12
    *
-   * @throws NotSupportedFeatureException
+   * @throws FeatureNotSupportedException
    */
-  public ImportHandler getImportHandler() throws NotSupportedFeatureException;
+  public ImportHandler getImportHandler() throws FeatureNotSupportedException;
 
   /**
    * Returns informations about the version of the RepositoryHandler.
diff --git a/scm-core/src/main/java/sonia/scm/repository/api/DiffCommandBuilder.java b/scm-core/src/main/java/sonia/scm/repository/api/DiffCommandBuilder.java
index 32b633a67c..9e7094d5bf 100644
--- a/scm-core/src/main/java/sonia/scm/repository/api/DiffCommandBuilder.java
+++ b/scm-core/src/main/java/sonia/scm/repository/api/DiffCommandBuilder.java
@@ -38,7 +38,7 @@ package sonia.scm.repository.api;
 import com.google.common.base.Preconditions;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import sonia.scm.NotSupportedFeatureException;
+import sonia.scm.FeatureNotSupportedException;
 import sonia.scm.repository.Feature;
 import sonia.scm.repository.spi.DiffCommand;
 import sonia.scm.repository.spi.DiffCommandRequest;
@@ -203,7 +203,7 @@ public final class DiffCommandBuilder
   public DiffCommandBuilder setAncestorChangeset(String revision)
   {
     if (!supportedFeatures.contains(Feature.INCOMING_REVISION)) {
-      throw new NotSupportedFeatureException(Feature.INCOMING_REVISION.name());
+      throw new FeatureNotSupportedException(Feature.INCOMING_REVISION.name());
     }
     request.setAncestorChangeset(revision);
 
diff --git a/scm-core/src/main/java/sonia/scm/repository/api/LogCommandBuilder.java b/scm-core/src/main/java/sonia/scm/repository/api/LogCommandBuilder.java
index 7b8e172661..917b81391f 100644
--- a/scm-core/src/main/java/sonia/scm/repository/api/LogCommandBuilder.java
+++ b/scm-core/src/main/java/sonia/scm/repository/api/LogCommandBuilder.java
@@ -39,7 +39,7 @@ import com.google.common.base.Objects;
 import com.google.common.collect.ImmutableList;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import sonia.scm.NotSupportedFeatureException;
+import sonia.scm.FeatureNotSupportedException;
 import sonia.scm.cache.Cache;
 import sonia.scm.cache.CacheManager;
 import sonia.scm.repository.Changeset;
@@ -410,7 +410,7 @@ public final class LogCommandBuilder
    */
   public LogCommandBuilder setAncestorChangeset(String ancestorChangeset) {
     if (!supportedFeatures.contains(Feature.INCOMING_REVISION)) {
-      throw new NotSupportedFeatureException(Feature.INCOMING_REVISION.name());
+      throw new FeatureNotSupportedException(Feature.INCOMING_REVISION.name());
     }
     request.setAncestorChangeset(ancestorChangeset);
     return this;
diff --git a/scm-core/src/main/java/sonia/scm/user/ChangePasswordNotAllowedException.java b/scm-core/src/main/java/sonia/scm/user/ChangePasswordNotAllowedException.java
index caa35e0b88..b0f8117e82 100644
--- a/scm-core/src/main/java/sonia/scm/user/ChangePasswordNotAllowedException.java
+++ b/scm-core/src/main/java/sonia/scm/user/ChangePasswordNotAllowedException.java
@@ -1,12 +1,13 @@
 package sonia.scm.user;
 
+import sonia.scm.BadRequestException;
 import sonia.scm.ContextEntry;
-import sonia.scm.ExceptionWithContext;
 
-public class ChangePasswordNotAllowedException extends ExceptionWithContext {
+@SuppressWarnings("squid:MaximumInheritanceDepth") // exceptions have a deep inheritance depth themselves; therefore we accept this here
+public class ChangePasswordNotAllowedException extends BadRequestException {
 
   private static final String CODE = "9BR7qpDAe1";
-  public static final String WRONG_USER_TYPE = "User of type %s are not allowed to change password";
+  public static final String WRONG_USER_TYPE = "Users of type %s are not allowed to change password";
 
   public ChangePasswordNotAllowedException(ContextEntry.ContextBuilder context, String type) {
     super(context.build(), String.format(WRONG_USER_TYPE, type));
diff --git a/scm-core/src/main/java/sonia/scm/user/InvalidPasswordException.java b/scm-core/src/main/java/sonia/scm/user/InvalidPasswordException.java
index 93a6a7c1d1..6f1bfd9954 100644
--- a/scm-core/src/main/java/sonia/scm/user/InvalidPasswordException.java
+++ b/scm-core/src/main/java/sonia/scm/user/InvalidPasswordException.java
@@ -1,9 +1,10 @@
 package sonia.scm.user;
 
+import sonia.scm.BadRequestException;
 import sonia.scm.ContextEntry;
-import sonia.scm.ExceptionWithContext;
 
-public class InvalidPasswordException extends ExceptionWithContext {
+@SuppressWarnings("squid:MaximumInheritanceDepth") // exceptions have a deep inheritance depth themselves; therefore we accept this here
+public class InvalidPasswordException extends BadRequestException {
 
   private static final String CODE = "8YR7aawFW1";
 
diff --git a/scm-webapp/src/main/java/sonia/scm/api/rest/BadRequestExceptionMapper.java b/scm-webapp/src/main/java/sonia/scm/api/rest/BadRequestExceptionMapper.java
new file mode 100644
index 0000000000..e529bc7c1a
--- /dev/null
+++ b/scm-webapp/src/main/java/sonia/scm/api/rest/BadRequestExceptionMapper.java
@@ -0,0 +1,16 @@
+package sonia.scm.api.rest;
+
+import sonia.scm.BadRequestException;
+import sonia.scm.api.v2.resources.ExceptionWithContextToErrorDtoMapper;
+
+import javax.inject.Inject;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.ext.Provider;
+
+@Provider
+public class BadRequestExceptionMapper extends ContextualExceptionMapper<BadRequestException> {
+  @Inject
+  public BadRequestExceptionMapper(ExceptionWithContextToErrorDtoMapper mapper) {
+    super(BadRequestException.class, Response.Status.BAD_REQUEST, mapper);
+  }
+}
diff --git a/scm-webapp/src/main/java/sonia/scm/api/rest/resources/RepositoryImportResource.java b/scm-webapp/src/main/java/sonia/scm/api/rest/resources/RepositoryImportResource.java
index 6bf6c8e803..64b20fc10c 100644
--- a/scm-webapp/src/main/java/sonia/scm/api/rest/resources/RepositoryImportResource.java
+++ b/scm-webapp/src/main/java/sonia/scm/api/rest/resources/RepositoryImportResource.java
@@ -46,7 +46,7 @@ import org.apache.shiro.SecurityUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import sonia.scm.NotFoundException;
-import sonia.scm.NotSupportedFeatureException;
+import sonia.scm.FeatureNotSupportedException;
 import sonia.scm.Type;
 import sonia.scm.api.rest.RestActionUploadResult;
 import sonia.scm.api.v2.resources.RepositoryResource;
@@ -394,7 +394,7 @@ public class RepositoryImportResource
 
         response = Response.ok(result).build();
       }
-      catch (NotSupportedFeatureException ex)
+      catch (FeatureNotSupportedException ex)
       {
         logger
           .warn(
@@ -609,7 +609,7 @@ public class RepositoryImportResource
             types.add(t);
           }
         }
-        catch (NotSupportedFeatureException ex)
+        catch (FeatureNotSupportedException ex)
         {
           if (logger.isTraceEnabled())
           {
@@ -711,7 +711,7 @@ public class RepositoryImportResource
           }
         }
       }
-      catch (NotSupportedFeatureException ex)
+      catch (FeatureNotSupportedException ex)
       {
         throw new WebApplicationException(ex, Response.Status.BAD_REQUEST);
       }
diff --git a/scm-webapp/src/main/java/sonia/scm/api/v2/NotSupportedFeatureExceptionMapper.java b/scm-webapp/src/main/java/sonia/scm/api/v2/NotSupportedFeatureExceptionMapper.java
deleted file mode 100644
index 6a48663aa5..0000000000
--- a/scm-webapp/src/main/java/sonia/scm/api/v2/NotSupportedFeatureExceptionMapper.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package sonia.scm.api.v2;
-
-import sonia.scm.NotSupportedFeatureException;
-import sonia.scm.api.rest.ContextualExceptionMapper;
-import sonia.scm.api.v2.resources.ExceptionWithContextToErrorDtoMapper;
-
-import javax.inject.Inject;
-import javax.ws.rs.core.Response;
-import javax.ws.rs.ext.Provider;
-
-@Provider
-public class NotSupportedFeatureExceptionMapper extends ContextualExceptionMapper<NotSupportedFeatureException> {
-  @Inject
-  public NotSupportedFeatureExceptionMapper(ExceptionWithContextToErrorDtoMapper mapper) {
-    super(NotSupportedFeatureException.class, Response.Status.BAD_REQUEST, mapper);
-  }
-}
diff --git a/scm-webapp/src/main/java/sonia/scm/api/v2/resources/ChangePasswordNotAllowedExceptionMapper.java b/scm-webapp/src/main/java/sonia/scm/api/v2/resources/ChangePasswordNotAllowedExceptionMapper.java
deleted file mode 100644
index 18a6e6e75c..0000000000
--- a/scm-webapp/src/main/java/sonia/scm/api/v2/resources/ChangePasswordNotAllowedExceptionMapper.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package sonia.scm.api.v2.resources;
-
-import sonia.scm.api.rest.ContextualExceptionMapper;
-import sonia.scm.user.ChangePasswordNotAllowedException;
-import sonia.scm.user.InvalidPasswordException;
-
-import javax.inject.Inject;
-import javax.ws.rs.core.Response;
-import javax.ws.rs.ext.Provider;
-
-@Provider
-public class ChangePasswordNotAllowedExceptionMapper extends ContextualExceptionMapper<ChangePasswordNotAllowedException> {
-  @Inject
-  public ChangePasswordNotAllowedExceptionMapper(ExceptionWithContextToErrorDtoMapper mapper) {
-    super(ChangePasswordNotAllowedException.class, Response.Status.BAD_REQUEST, mapper);
-  }
-}
diff --git a/scm-webapp/src/main/java/sonia/scm/api/v2/resources/InvalidPasswordExceptionMapper.java b/scm-webapp/src/main/java/sonia/scm/api/v2/resources/InvalidPasswordExceptionMapper.java
deleted file mode 100644
index 7a1d311a1c..0000000000
--- a/scm-webapp/src/main/java/sonia/scm/api/v2/resources/InvalidPasswordExceptionMapper.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package sonia.scm.api.v2.resources;
-
-import sonia.scm.api.rest.ContextualExceptionMapper;
-import sonia.scm.user.InvalidPasswordException;
-
-import javax.inject.Inject;
-import javax.ws.rs.core.Response;
-import javax.ws.rs.ext.Provider;
-
-@Provider
-public class InvalidPasswordExceptionMapper extends ContextualExceptionMapper<InvalidPasswordException> {
-
-  @Inject
-  public InvalidPasswordExceptionMapper(ExceptionWithContextToErrorDtoMapper mapper) {
-    super(InvalidPasswordException.class, Response.Status.BAD_REQUEST, mapper);
-  }
-}
diff --git a/scm-webapp/src/test/java/sonia/scm/api/v2/resources/DispatcherMock.java b/scm-webapp/src/test/java/sonia/scm/api/v2/resources/DispatcherMock.java
index 9638a8aa49..fe205e88a1 100644
--- a/scm-webapp/src/test/java/sonia/scm/api/v2/resources/DispatcherMock.java
+++ b/scm-webapp/src/test/java/sonia/scm/api/v2/resources/DispatcherMock.java
@@ -4,9 +4,9 @@ import org.jboss.resteasy.core.Dispatcher;
 import org.jboss.resteasy.mock.MockDispatcherFactory;
 import sonia.scm.api.rest.AlreadyExistsExceptionMapper;
 import sonia.scm.api.rest.AuthorizationExceptionMapper;
+import sonia.scm.api.rest.BadRequestExceptionMapper;
 import sonia.scm.api.rest.ConcurrentModificationExceptionMapper;
 import sonia.scm.api.v2.NotFoundExceptionMapper;
-import sonia.scm.api.v2.NotSupportedFeatureExceptionMapper;
 
 public class DispatcherMock {
   public static Dispatcher createDispatcher(Object resource) {
@@ -18,9 +18,7 @@ public class DispatcherMock {
     dispatcher.getProviderFactory().register(new ConcurrentModificationExceptionMapper(mapper));
     dispatcher.getProviderFactory().registerProvider(AuthorizationExceptionMapper.class);
     dispatcher.getProviderFactory().register(new InternalRepositoryExceptionMapper(mapper));
-    dispatcher.getProviderFactory().register(new ChangePasswordNotAllowedExceptionMapper(mapper));
-    dispatcher.getProviderFactory().register(new InvalidPasswordExceptionMapper(mapper));
-    dispatcher.getProviderFactory().register(new NotSupportedFeatureExceptionMapper(mapper));
+    dispatcher.getProviderFactory().register(new BadRequestExceptionMapper(mapper));
     return dispatcher;
   }
 }