diff --git a/src/libs/utils/qtcprocess.cpp b/src/libs/utils/qtcprocess.cpp
index 1673424ff5b..61bb5925461 100644
--- a/src/libs/utils/qtcprocess.cpp
+++ b/src/libs/utils/qtcprocess.cpp
@@ -112,6 +112,8 @@ public:
     void slotError(QProcess::ProcessError);
     void clearForRun();
 
+    SynchronousProcessResponse::Result interpretExitCode(int exitCode);
+
     QtcProcess *q;
     QTextCodec *m_codec = QTextCodec::codecForLocale();
     QTimer m_timer;
@@ -120,7 +122,7 @@ public:
     FilePath m_binary;
     ChannelBuffer m_stdOut;
     ChannelBuffer m_stdErr;
-    ExitCodeInterpreter m_exitCodeInterpreter = defaultExitCodeInterpreter;
+    ExitCodeInterpreter m_exitCodeInterpreter;
 
     int m_hangTimerCount = 0;
     int m_maxHangTimerCount = defaultMaxHangTimerCount;
@@ -142,6 +144,16 @@ void QtcProcessPrivate::clearForRun()
     m_binary = {};
 }
 
+SynchronousProcessResponse::Result QtcProcessPrivate::interpretExitCode(int exitCode)
+{
+    if (m_exitCodeInterpreter)
+        return m_exitCodeInterpreter(exitCode);
+
+    // default:
+    return exitCode ? SynchronousProcessResponse::FinishedError
+                    : SynchronousProcessResponse::Finished;
+}
+
 } // Internal
 
 /*!
@@ -633,12 +645,6 @@ QTCREATOR_UTILS_EXPORT QDebug operator<<(QDebug str, const SynchronousProcessRes
     return str;
 }
 
-SynchronousProcessResponse::Result defaultExitCodeInterpreter(int code)
-{
-    return code ? SynchronousProcessResponse::FinishedError
-                : SynchronousProcessResponse::Finished;
-}
-
 void ChannelBuffer::clearForRun()
 {
     rawDataPos = 0;
@@ -732,7 +738,6 @@ void QtcProcess::setTimeOutMessageBoxEnabled(bool v)
 
 void QtcProcess::setExitCodeInterpreter(const ExitCodeInterpreter &interpreter)
 {
-    QTC_ASSERT(interpreter, return);
     d->m_exitCodeInterpreter = interpreter;
 }
 
@@ -867,7 +872,7 @@ SynchronousProcessResponse QtcProcess::runBlocking(const CommandLine &cmd)
         if (exitStatus() != QProcess::NormalExit)
             d->m_result.result = SynchronousProcessResponse::TerminatedAbnormally;
         else
-            d->m_result.result = d->m_exitCodeInterpreter(d->m_result.exitCode);
+            d->m_result.result = d->interpretExitCode(d->m_result.exitCode);
     }
     d->m_stdOut.append(readAllStandardOutput(), false);
     d->m_stdErr.append(readAllStandardError(), false);
@@ -916,7 +921,7 @@ void QtcProcessPrivate::slotFinished(int exitCode, QProcess::ExitStatus e)
 
     switch (e) {
     case QProcess::NormalExit:
-        m_result.result = m_exitCodeInterpreter(exitCode);
+        m_result.result = interpretExitCode(exitCode);
         m_result.exitCode = exitCode;
         break;
     case QProcess::CrashExit:
diff --git a/src/libs/utils/qtcprocess.h b/src/libs/utils/qtcprocess.h
index f602831641b..08eb1d07bed 100644
--- a/src/libs/utils/qtcprocess.h
+++ b/src/libs/utils/qtcprocess.h
@@ -147,8 +147,6 @@ private:
 
 QTCREATOR_UTILS_EXPORT QDebug operator<<(QDebug str, const SynchronousProcessResponse &);
 
-QTCREATOR_UTILS_EXPORT SynchronousProcessResponse::Result defaultExitCodeInterpreter(int code);
-
 class QTCREATOR_UTILS_EXPORT SynchronousProcess : public QtcProcess
 {
     Q_OBJECT
diff --git a/src/libs/utils/shellcommand.h b/src/libs/utils/shellcommand.h
index 5cf5a0c9f85..21f1bc47863 100644
--- a/src/libs/utils/shellcommand.h
+++ b/src/libs/utils/shellcommand.h
@@ -108,10 +108,10 @@ public:
 
     void addJob(const CommandLine &command,
                 const QString &workingDirectory = QString(),
-                const ExitCodeInterpreter &interpreter = defaultExitCodeInterpreter);
+                const ExitCodeInterpreter &interpreter = {});
     void addJob(const CommandLine &command, int timeoutS,
                 const QString &workingDirectory = QString(),
-                const ExitCodeInterpreter &interpreter = defaultExitCodeInterpreter);
+                const ExitCodeInterpreter &interpreter = {});
     void execute(); // Execute tasks asynchronously!
     void abort();
     bool lastExecutionSuccess() const;
@@ -145,7 +145,7 @@ public:
     virtual SynchronousProcessResponse runCommand(const CommandLine &command,
                                                   int timeoutS,
                                                   const QString &workingDirectory = QString(),
-                                                  const ExitCodeInterpreter &interpreter = defaultExitCodeInterpreter);
+                                                  const ExitCodeInterpreter &interpreter = {});
 
     void cancel();
 
@@ -170,12 +170,12 @@ private:
     SynchronousProcessResponse runFullySynchronous(const CommandLine &cmd,
                                                    QSharedPointer<OutputProxy> proxy,
                                                    int timeoutS, const QString &workingDirectory,
-                                                   const ExitCodeInterpreter &interpreter = defaultExitCodeInterpreter);
+                                                   const ExitCodeInterpreter &interpreter = {});
     // Run with an event loop. Signals will be delivered.
     SynchronousProcessResponse runSynchronous(const CommandLine &cmd,
                                               QSharedPointer<OutputProxy> proxy,
                                               int timeoutS, const QString &workingDirectory,
-                                              const ExitCodeInterpreter &interpreter = defaultExitCodeInterpreter);
+                                              const ExitCodeInterpreter &interpreter = {});
 
     class Internal::ShellCommandPrivate *const d;
 };
diff --git a/src/plugins/bazaar/bazaarclient.cpp b/src/plugins/bazaar/bazaarclient.cpp
index 0558d66e2e4..d00a3961cf2 100644
--- a/src/plugins/bazaar/bazaarclient.cpp
+++ b/src/plugins/bazaar/bazaarclient.cpp
@@ -235,7 +235,7 @@ ExitCodeInterpreter BazaarClient::exitCodeInterpreter(VcsCommandTag cmd) const
                                           : SynchronousProcessResponse::Finished;
         };
     }
-    return Utils::defaultExitCodeInterpreter;
+    return {};
 }
 
 QStringList BazaarClient::revisionSpec(const QString &revision) const
diff --git a/src/plugins/cvs/cvsplugin.cpp b/src/plugins/cvs/cvsplugin.cpp
index 3e7c12f85b3..0e566ad66f0 100644
--- a/src/plugins/cvs/cvsplugin.cpp
+++ b/src/plugins/cvs/cvsplugin.cpp
@@ -208,7 +208,7 @@ public:
                                               : SynchronousProcessResponse::Finished;
             };
         }
-        return Utils::defaultExitCodeInterpreter;
+        return {};
     }
 
     Utils::Id vcsEditorKind(VcsCommandTag cmd) const override
diff --git a/src/plugins/vcsbase/vcsbaseclient.cpp b/src/plugins/vcsbase/vcsbaseclient.cpp
index c5ee483cee7..92665cccdac 100644
--- a/src/plugins/vcsbase/vcsbaseclient.cpp
+++ b/src/plugins/vcsbase/vcsbaseclient.cpp
@@ -518,7 +518,7 @@ QString VcsBaseClient::vcsCommandString(VcsCommandTag cmd) const
 ExitCodeInterpreter VcsBaseClient::exitCodeInterpreter(VcsCommandTag cmd) const
 {
     Q_UNUSED(cmd)
-    return Utils::defaultExitCodeInterpreter;
+    return {};
 }
 
 void VcsBaseClient::setDiffConfigCreator(ConfigCreator creator)
diff --git a/src/plugins/vcsbase/vcsbaseclient.h b/src/plugins/vcsbase/vcsbaseclient.h
index dc532a31ec2..81345f2986e 100644
--- a/src/plugins/vcsbase/vcsbaseclient.h
+++ b/src/plugins/vcsbase/vcsbaseclient.h
@@ -41,7 +41,6 @@
 
 QT_BEGIN_NAMESPACE
 class QFileInfo;
-class QProcessEnvironment;
 class QToolBar;
 QT_END_NAMESPACE
 
@@ -82,7 +81,7 @@ public:
 
     void enqueueJob(VcsCommand *cmd, const QStringList &args,
                     const QString &workingDirectory = QString(),
-                    const Utils::ExitCodeInterpreter &interpreter = Utils::defaultExitCodeInterpreter) const;
+                    const Utils::ExitCodeInterpreter &interpreter = {}) const;
 
     virtual Utils::Environment processEnvironment() const;
 
diff --git a/src/plugins/vcsbase/vcscommand.h b/src/plugins/vcsbase/vcscommand.h
index 2a96dfea4e4..72481fdc6a1 100644
--- a/src/plugins/vcsbase/vcscommand.h
+++ b/src/plugins/vcsbase/vcscommand.h
@@ -48,7 +48,7 @@ public:
     Utils::SynchronousProcessResponse runCommand(const Utils::CommandLine &command,
                                                  int timeoutS,
                                                  const QString &workDirectory = QString(),
-                                                 const Utils::ExitCodeInterpreter &interpreter = Utils::defaultExitCodeInterpreter) override;
+                                                 const Utils::ExitCodeInterpreter &interpreter = {}) override;
 
 private:
     void emitRepositoryChanged(const QString &workingDirectory);