diff --git a/src/lib/component/controller/GraphController.cpp b/src/lib/component/controller/GraphController.cpp
index f0c92f9e..130d40e4 100644
--- a/src/lib/component/controller/GraphController.cpp
+++ b/src/lib/component/controller/GraphController.cpp
@@ -1203,7 +1203,7 @@ void GraphController::handleMessage(MessageColorSchemeTest* message)
 		[&](Node* parent, Id id, Node::NodeType type, std::string name, AccessKind access)
 		{
 			Node* node = graph->createNode(id + 1000, type, NameHierarchy(name), true);
-			Edge* edge = graph->createEdge(id + 10000, Edge::EDGE_MEMBER, parent, node);
+			graph->createEdge(id + 10000, Edge::EDGE_MEMBER, parent, node);
 
 			if (access != ACCESS_NONE)
 			{
diff --git a/src/lib/component/view/GraphViewStyle.cpp b/src/lib/component/view/GraphViewStyle.cpp
index 0cb445cd..727fc847 100644
--- a/src/lib/component/view/GraphViewStyle.cpp
+++ b/src/lib/component/view/GraphViewStyle.cpp
@@ -268,6 +268,9 @@ GraphViewStyle::NodeMargins GraphViewStyle::getMarginsOfAccessNode(AccessKind ac
 	case ACCESS_PRIVATE:
 		margins.minWidth = 58;
 		break;
+	case ACCESS_DEFAULT:
+		margins.minWidth = 60;
+		break;
 	case ACCESS_TEMPLATE_PARAMETER:
 	case ACCESS_TYPE_PARAMETER:
 		margins.minWidth = 133;
diff --git a/src/lib/data/graph/token_component/TokenComponentAccess.cpp b/src/lib/data/graph/token_component/TokenComponentAccess.cpp
index b4196991..ed265d89 100644
--- a/src/lib/data/graph/token_component/TokenComponentAccess.cpp
+++ b/src/lib/data/graph/token_component/TokenComponentAccess.cpp
@@ -4,6 +4,8 @@ std::string TokenComponentAccess::getAccessString(AccessKind access)
 {
 	switch (access)
 	{
+	case ACCESS_NONE:
+		break;
 	case ACCESS_PUBLIC:
 		return "public";
 	case ACCESS_PROTECTED:
diff --git a/src/lib/data/parser/ParserClient.cpp b/src/lib/data/parser/ParserClient.cpp
index cba9cccb..8cc715f7 100644
--- a/src/lib/data/parser/ParserClient.cpp
+++ b/src/lib/data/parser/ParserClient.cpp
@@ -18,6 +18,8 @@ std::string ParserClient::addAccessPrefix(const std::string& str, AccessKind acc
 		return "private " + str;
 	case ACCESS_DEFAULT:
 		return "default " + str;
+	default:
+		break;
 	}
 	return str;
 }
diff --git a/src/lib/data/parser/java/JavaEnvironment.cpp b/src/lib/data/parser/java/JavaEnvironment.cpp
index 21c886c1..a648531c 100644
--- a/src/lib/data/parser/java/JavaEnvironment.cpp
+++ b/src/lib/data/parser/java/JavaEnvironment.cpp
@@ -67,7 +67,7 @@ void JavaEnvironment::registerNativeMethods(std::string className, std::vector<N
 {
 	JNINativeMethod* jniMethods = new JNINativeMethod[methods.size()];
 
-	for (int i = 0; i < methods.size(); i++)
+	for (size_t i = 0; i < methods.size(); i++)
 	{
 		jniMethods[i].name = const_cast<char*>(methods[i].name.c_str());
 		jniMethods[i].signature = const_cast<char*>(methods[i].signature.c_str());
diff --git a/src/lib/data/parser/java/JavaEnvironmentFactory.cpp b/src/lib/data/parser/java/JavaEnvironmentFactory.cpp
index be6748ae..bd0f095d 100644
--- a/src/lib/data/parser/java/JavaEnvironmentFactory.cpp
+++ b/src/lib/data/parser/java/JavaEnvironmentFactory.cpp
@@ -41,7 +41,7 @@ void JavaEnvironmentFactory::createInstance(std::string classPath)
 	JavaVMOption* options = new JavaVMOption[3];   // JVM invocation options
 	std::string classPathOption = "-Djava.class.path=" + classPath;
 	options[0].optionString = const_cast<char*>(classPathOption.c_str());
-	options[1].optionString = "-Xms1m";
+	options[1].optionString = const_cast<char*>("-Xms1m");
 	std::string maximumMemoryOprionString = "-Xmx" + std::to_string(ApplicationSettings::getInstance()->getJavaMaximumMemory()) + "m";
 	options[2].optionString =  const_cast<char*>(maximumMemoryOprionString.c_str());
 //	options[3].optionString = "-verbose:jni";
@@ -52,7 +52,7 @@ void JavaEnvironmentFactory::createInstance(std::string classPath)
 
 	jint rc = JNI_CreateJavaVM(&jvm, (void**)&env, &vm_args);  // YES !!
 
-	delete options;
+	delete [] options;
 
 	if(rc != JNI_OK)
 	{
diff --git a/src/lib_gui/qt/view/graphElements/QtGraphNodeAccess.cpp b/src/lib_gui/qt/view/graphElements/QtGraphNodeAccess.cpp
index b411b6dd..a4663dc5 100644
--- a/src/lib_gui/qt/view/graphElements/QtGraphNodeAccess.cpp
+++ b/src/lib_gui/qt/view/graphElements/QtGraphNodeAccess.cpp
@@ -32,6 +32,7 @@ QtGraphNodeAccess::QtGraphNodeAccess(AccessKind accessKind)
 		break;
 	case ACCESS_PRIVATE:
 		iconFileName = "private";
+		break;
 	case ACCESS_DEFAULT:
 		iconFileName = "default";
 		break;