Better (but unsorted) Java detection

logic/JavaChecker.cpp

@@ -1,6 +1,7 @@
 #include "JavaChecker.h"
 #include <QFile>
 #include <QProcess>
+#include <QMap>
 
 #define CHECKER_FILE "JavaChecker.jar"
 
@@ -8,7 +9,7 @@ JavaChecker::JavaChecker(QObject *parent) : QObject(parent)
 {
 }
 
-void JavaChecker::performCheck(QString path)
+void JavaChecker::performCheck()
 {
 	if(QFile::exists(CHECKER_FILE))
 	{
@@ -40,30 +41,53 @@ void JavaChecker::finished(int exitcode, QProcess::ExitStatus status)
 	QProcessPtr _process;
 	_process.swap(process);
 
-	if (status == QProcess::CrashExit || exitcode == 1)
-	{
-		emit checkFinished({});
-		return;
-	}
-
-	QString p_stdout = _process->readAllStandardOutput();
-	auto parts = p_stdout.split('=', QString::SkipEmptyParts);
-	if (parts.size() != 2 || parts[0] != "os.arch")
-	{
-		emit checkFinished({});
-		return;
-	}
-
-	auto os_arch = parts[1].remove('\n').remove('\r');
-	bool is_64 = os_arch == "x86_64" || os_arch == "amd64";
-
 	JavaCheckResult result;
 	{
-		result.valid = true;
-		result.is_64bit = is_64;
-		result.mojangPlatform = is_64 ? "64" : "32";
-		result.realPlatform = os_arch;
+		result.path = path;
 	}
+
+	if (status == QProcess::CrashExit || exitcode == 1)
+	{
+		emit checkFinished(result);
+		return;
+	}
+
+	bool success = true;
+	QString p_stdout = _process->readAllStandardOutput();
+	QMap<QString, QString> results;
+	QStringList lines = p_stdout.split("\n", QString::SkipEmptyParts);
+	for(QString line : lines)
+	{
+		line = line.trimmed();
+
+		auto parts = line.split('=', QString::SkipEmptyParts);
+		if(parts.size() != 2 || parts[0].isEmpty() || parts[1].isEmpty())
+		{
+			success = false;
+		}
+		else
+		{
+			results.insert(parts[0], parts[1]);
+		}
+	}
+
+	if(!results.contains("os.arch") || !results.contains("java.version") || !success)
+	{
+		emit checkFinished(result);
+		return;
+	}
+
+	auto os_arch = results["os.arch"];
+	auto java_version = results["java.version"];
+	bool is_64 = os_arch == "x86_64" || os_arch == "amd64";
+
+
+	result.valid = true;
+	result.is_64bit = is_64;
+	result.mojangPlatform = is_64 ? "64" : "32";
+	result.realPlatform = os_arch;
+	result.javaVersion = java_version;
+
 	emit checkFinished(result);
 }
 
@@ -72,7 +96,13 @@ void JavaChecker::error(QProcess::ProcessError err)
 	if(err == QProcess::FailedToStart)
 	{
 		killTimer.stop();
-		emit checkFinished({});
+
+		JavaCheckResult result;
+		{
+			result.path = path;
+		}
+
+		emit checkFinished(result);
 		return;
 	}
 }