diff --git a/app/main.cpp b/app/main.cpp
--- a/app/main.cpp
+++ b/app/main.cpp
@@ -211,7 +211,7 @@
     QDBusMessage makeVisible = QDBusMessage::createMethodCall( service, "/kdevelop/MainWindow", "org.kdevelop.MainWindow",
                                                                "ensureVisible" );
     QDBusConnection::sessionBus().asyncCall( makeVisible );
-    return errors_occured ? 1 : 0;
+    return errors_occured;
 }
 
 /// Gets the PID of a running KDevelop instance, eventually asking the user if there is more than one.
@@ -387,13 +387,11 @@
         for (int i=0; i < c; ++i) {
             if (debugFound) {
                 debugArgs << argv[i];
-            } else if (qstrcmp(argv[i], "--debug") == 0 || qstrcmp(argv[i], "-d") == 0) {
-                if (argc <= i+1) {
-                    argc = i + 1;
-                } else {
+            } else if ((qstrcmp(argv[i], "--debug") == 0) || (qstrcmp(argv[i], "-d") == 0)) {
+                if (argc > (i + 1)) {
                     i++;
-                    argc = i + 1;
                 }
+                argc = i + 1;
                 debugFound = true;
             } else if (QString(argv[i]).startsWith("--debug=")) {
                 argc = i + 1;
diff --git a/documentation/qthelp/tests/test_qthelpplugin.cpp b/documentation/qthelp/tests/test_qthelpplugin.cpp
--- a/documentation/qthelp/tests/test_qthelpplugin.cpp
+++ b/documentation/qthelp/tests/test_qthelpplugin.cpp
@@ -42,6 +42,8 @@
 using namespace KDevelop;
 
 TestQtHelpPlugin::TestQtHelpPlugin()
+    : m_testCore(nullptr)
+    , m_plugin(nullptr)
 {
 }
 
diff --git a/formatters/astyle/lib/ASLocalizer.cpp b/formatters/astyle/lib/ASLocalizer.cpp
--- a/formatters/astyle/lib/ASLocalizer.cpp
+++ b/formatters/astyle/lib/ASLocalizer.cpp
@@ -78,15 +78,15 @@
 //----------------------------------------------------------------------------
 
 ASLocalizer::ASLocalizer()
-// Set the locale information.
+    // Set the locale information.
+    // set language default values to english (ascii)
+    // this will be used if a locale or a language cannot be found
+    : m_localeName("UNKNOWN")
+    , m_langID("en")
+    , m_lcid(0)
+    , m_translation(nullptr)
 {
-	// set language default values to english (ascii)
-	// this will be used if a locale or a language cannot be found
-	m_localeName = "UNKNOWN";
-	m_langID = "en";
-	m_lcid = 0;
 	m_subLangID.clear();
-	m_translation = NULL;
 
 	// Not all compilers support the C++ function locale::global(locale(""));
 	// For testing on Windows change the "Region and Language" settings or use AppLocale.
diff --git a/languages/qmljs/libs/qmljs/qmljstypedescriptionreader.cpp b/languages/qmljs/libs/qmljs/qmljstypedescriptionreader.cpp
--- a/languages/qmljs/libs/qmljs/qmljstypedescriptionreader.cpp
+++ b/languages/qmljs/libs/qmljs/qmljstypedescriptionreader.cpp
@@ -47,7 +47,10 @@
 using namespace LanguageUtils;
 
 TypeDescriptionReader::TypeDescriptionReader(const QString &fileName, const QString &data)
-    : _fileName (fileName), _source(data), _objects(0)
+    : _fileName (fileName)
+    , _source(data)
+    , _objects(0)
+    , _moduleApis(nullptr)
 {
 }
 
diff --git a/languages/qmljs/libs/utils/fileutils.cpp b/languages/qmljs/libs/utils/fileutils.cpp
--- a/languages/qmljs/libs/utils/fileutils.cpp
+++ b/languages/qmljs/libs/utils/fileutils.cpp
@@ -383,12 +383,12 @@
 
 FileSaverBase::FileSaverBase()
     : m_hasError(false)
+    , m_file(nullptr)
 {
 }
 
 FileSaverBase::~FileSaverBase()
 {
-    delete m_file;
 }
 
 bool FileSaverBase::finalize()
diff --git a/projectbuilders/qmakebuilder/qmakejob.cpp b/projectbuilders/qmakebuilder/qmakejob.cpp
--- a/projectbuilders/qmakebuilder/qmakejob.cpp
+++ b/projectbuilders/qmakebuilder/qmakejob.cpp
@@ -40,6 +40,8 @@
 QMakeJob::QMakeJob(QObject* parent)
     : OutputExecuteJob(parent)
     , m_killed(false)
+    , m_project(nullptr)
+    , m_cmd(nullptr)
 {
     setCapabilities(Killable);
     setFilteringStrategy(OutputModel::CompilerFilter);
diff --git a/utils/okteta/oktetadocument.cpp b/utils/okteta/oktetadocument.cpp
--- a/utils/okteta/oktetadocument.cpp
+++ b/utils/okteta/oktetadocument.cpp
@@ -59,9 +59,10 @@
 {
 
 OktetaDocument::OktetaDocument( const QUrl &url , ICore* core )
-  : Sublime::UrlDocument( core->uiController()->controller(), url ),
-    IDocument( core ),
-    mByteArrayDocument( nullptr )
+    : Sublime::UrlDocument( core->uiController()->controller(), url )
+    , IDocument( core )
+    , mPlugin( nullptr )
+    , mByteArrayDocument( nullptr )
 {
 }
 
@@ -210,7 +211,7 @@
         Kasten::AbstractLoadJob* loadJob = synchronizer->startLoad( url() );
         connect( loadJob, &Kasten::AbstractLoadJob::documentLoaded,
                  this, &OktetaDocument::onByteArrayDocumentLoaded );
-        const bool syncSucceeded = Kasten::JobManager::executeJob( loadJob );
+        Kasten::JobManager::executeJob( loadJob );
 
         delete synchronizerFactory;
     }