diff --git a/launcher/minecraft/auth/AccountTask.cpp b/launcher/minecraft/auth/AccountTask.cpp
index 49b6e46fc..4118c3c5d 100644
--- a/launcher/minecraft/auth/AccountTask.cpp
+++ b/launcher/minecraft/auth/AccountTask.cpp
@@ -79,6 +79,8 @@ QString AccountTask::getStateMessage() const
 bool AccountTask::changeState(AccountTaskState newState, QString reason)
 {
     m_taskState = newState;
+    // FIXME: virtual method invoked in constructor.
+    // We want that behavior, but maybe make it less weird?
     setStatus(getStateMessage());
     switch(newState) {
         case AccountTaskState::STATE_CREATED: {
diff --git a/launcher/modplatform/flame/FlameAPI.h b/launcher/modplatform/flame/FlameAPI.h
index 424153d28..aea76ff19 100644
--- a/launcher/modplatform/flame/FlameAPI.h
+++ b/launcher/modplatform/flame/FlameAPI.h
@@ -59,7 +59,7 @@ class FlameAPI : public NetworkModAPI {
     };
 
    public:
-    static auto getMappedModLoader(const ModLoaderTypes loaders) -> const int
+    static auto getMappedModLoader(const ModLoaderTypes loaders) -> int
     {
         // https://docs.curseforge.com/?http#tocS_ModLoaderType
         if (loaders & Forge)
diff --git a/launcher/translations/POTranslator.cpp b/launcher/translations/POTranslator.cpp
index 1ffcb9a40..c77ae45d3 100644
--- a/launcher/translations/POTranslator.cpp
+++ b/launcher/translations/POTranslator.cpp
@@ -329,6 +329,11 @@ POTranslator::POTranslator(const QString& filename, QObject* parent) : QTranslat
     d->reload();
 }
 
+POTranslator::~POTranslator()
+{
+    delete d;
+}
+
 QString POTranslator::translate(const char* context, const char* sourceText, const char* disambiguation, int n) const
 {
     if(disambiguation)
diff --git a/launcher/translations/POTranslator.h b/launcher/translations/POTranslator.h
index 6d5185601..1634018cc 100644
--- a/launcher/translations/POTranslator.h
+++ b/launcher/translations/POTranslator.h
@@ -9,6 +9,7 @@ class POTranslator : public QTranslator
     Q_OBJECT
 public:
     explicit POTranslator(const QString& filename, QObject * parent = nullptr);
+    virtual ~POTranslator();
     QString translate(const char * context, const char * sourceText, const char * disambiguation, int n) const override;
     bool isEmpty() const override;
 private:
diff --git a/libraries/LocalPeer/src/LocalPeer.cpp b/libraries/LocalPeer/src/LocalPeer.cpp
index cb218466f..2c996ae78 100644
--- a/libraries/LocalPeer/src/LocalPeer.cpp
+++ b/libraries/LocalPeer/src/LocalPeer.cpp
@@ -162,15 +162,15 @@ bool LocalPeer::sendMessage(const QByteArray &message, int timeout)
 
     QLocalSocket socket;
     bool connOk = false;
-    for(int i = 0; i < 2; i++) {
+    int tries = 2;
+    for(int i = 0; i < tries; i++) {
         // Try twice, in case the other instance is just starting up
         socket.connectToServer(socketName);
         connOk = socket.waitForConnected(timeout/2);
-        if (connOk || i)
+        if (!connOk && i < (tries - 1))
         {
-            break;
+            std::this_thread::sleep_for(std::chrono::milliseconds(250));
         }
-        std::this_thread::sleep_for(std::chrono::milliseconds(250));
     }
     if (!connOk)
     {
diff --git a/libraries/classparser/src/annotations.cpp b/libraries/classparser/src/annotations.cpp
index 18a9e880a..89b201bc8 100644
--- a/libraries/classparser/src/annotations.cpp
+++ b/libraries/classparser/src/annotations.cpp
@@ -79,7 +79,7 @@ element_value *element_value::readElementValue(util::membuffer &input,
         }
         return new element_value_array(ARRAY, vals, pool);
     default:
-        throw new java::classfile_exception();
+        throw java::classfile_exception();
     }
 }
-}
\ No newline at end of file
+}
diff --git a/libraries/classparser/src/classfile.h b/libraries/classparser/src/classfile.h
index 1616a828e..d629dde1f 100644
--- a/libraries/classparser/src/classfile.h
+++ b/libraries/classparser/src/classfile.h
@@ -17,7 +17,7 @@ public:
         is_synthetic = false;
         read_be(magic);
         if (magic != 0xCAFEBABE)
-            throw new classfile_exception();
+            throw classfile_exception();
         read_be(minor_version);
         read_be(major_version);
         constants.load(*this);
@@ -153,4 +153,4 @@ public:
     // FIXME: doesn't free up memory on delete
     java::annotation_table visible_class_annotations;
 };
-}
\ No newline at end of file
+}
diff --git a/libraries/classparser/src/constants.h b/libraries/classparser/src/constants.h
index 3b6c3b7ae..47b325b93 100644
--- a/libraries/classparser/src/constants.h
+++ b/libraries/classparser/src/constants.h
@@ -1,5 +1,6 @@
 #pragma once
 #include "errors.h"
+#include "membuffer.h"
 #include <sstream>
 
 namespace java
@@ -90,7 +91,7 @@ public:
             break;
         default:
             // invalid constant type!
-            throw new classfile_exception();
+            throw classfile_exception();
         }
     }
     constant(int)
@@ -210,7 +211,7 @@ public:
     {
         if (constant_index == 0 || constant_index > constants.size())
         {
-            throw new classfile_exception();
+            throw classfile_exception();
         }
         return constants[constant_index - 1];
     }