GH-2591 less std::shared_ptr and more shared_qobject_ptr

This eliminates some weird crashes.

api/logic/java/JavaChecker.cpp

@@ -75,8 +75,8 @@ void JavaChecker::stderrReady()
 void JavaChecker::finished(int exitcode, QProcess::ExitStatus status)
 {
     killTimer.stop();
-    QProcessPtr _process;
-    _process.swap(process);
+    QProcessPtr _process = process;
+    process.reset();
 
     JavaCheckResult result;
     {

api/logic/java/JavaChecker.h

@@ -3,6 +3,8 @@
 #include <QTimer>
 #include <memory>
 
+#include "QObjectPtr.h"
+
 #include "multimc_logic_export.h"
 
 #include "JavaVersion.h"
@@ -27,8 +29,8 @@ struct MULTIMC_LOGIC_EXPORT JavaCheckResult
     } validity = Validity::Errored;
 };
 
-typedef std::shared_ptr<QProcess> QProcessPtr;
-typedef std::shared_ptr<JavaChecker> JavaCheckerPtr;
+typedef shared_qobject_ptr<QProcess> QProcessPtr;
+typedef shared_qobject_ptr<JavaChecker> JavaCheckerPtr;
 class MULTIMC_LOGIC_EXPORT JavaChecker : public QObject
 {
     Q_OBJECT

api/logic/java/JavaCheckerJob.h

@@ -20,7 +20,7 @@
 #include "tasks/Task.h"
 
 class JavaCheckerJob;
-typedef std::shared_ptr<JavaCheckerJob> JavaCheckerJobPtr;
+typedef shared_qobject_ptr<JavaCheckerJob> JavaCheckerJobPtr;
 
 // FIXME: this just seems horribly redundant
 class JavaCheckerJob : public Task

api/logic/java/JavaInstallList.cpp

@@ -149,7 +149,7 @@ void JavaListLoadTask::executeTask()
     JavaUtils ju;
     QList<QString> candidate_paths = ju.FindJavaPaths();
 
-    m_job = std::shared_ptr<JavaCheckerJob>(new JavaCheckerJob("Java detection"));
+    m_job = new JavaCheckerJob("Java detection");
     connect(m_job.get(), &Task::finished, this, &JavaListLoadTask::javaCheckerFinished);
     connect(m_job.get(), &Task::progress, this, &Task::setProgress);
 

api/logic/java/JavaInstallList.h

@@ -24,6 +24,8 @@
 #include "JavaCheckerJob.h"
 #include "JavaInstall.h"
 
+#include "QObjectPtr.h"
+
 #include "multimc_logic_export.h"
 
 class JavaListLoadTask;
@@ -75,7 +77,7 @@ public slots:
     void javaCheckerFinished();
 
 protected:
-    std::shared_ptr<JavaCheckerJob> m_job;
+    shared_qobject_ptr<JavaCheckerJob> m_job;
     JavaInstallList *m_list;
     JavaInstall *m_currentRecommended;
 };

api/logic/java/launch/CheckJava.cpp

@@ -60,7 +60,7 @@ void CheckJava::executeTask()
     // if timestamps are not the same, or something is missing, check!
     if (javaUnixTime != storedUnixTime || storedVersion.size() == 0 || storedArchitecture.size() == 0)
     {
-        m_JavaChecker = std::make_shared<JavaChecker>();
+        m_JavaChecker = new JavaChecker();
         emit logLine(tr("Checking Java version..."), MessageLevel::MultiMC);
         connect(m_JavaChecker.get(), &JavaChecker::checkFinished, this, &CheckJava::checkJavaFinished);
         m_JavaChecker->m_path = realJavaPath;