diff --git a/launcher/src/main/java/com/skcraft/launcher/launch/JavaRuntimeFinder.java b/launcher/src/main/java/com/skcraft/launcher/launch/JavaRuntimeFinder.java
index e230595..209c4ed 100644
--- a/launcher/src/main/java/com/skcraft/launcher/launch/JavaRuntimeFinder.java
+++ b/launcher/src/main/java/com/skcraft/launcher/launch/JavaRuntimeFinder.java
@@ -11,15 +11,18 @@
 import com.skcraft.launcher.util.EnvironmentParser;
 import com.skcraft.launcher.util.Platform;
 import com.skcraft.launcher.util.WinRegistry;
+import lombok.extern.java.Log;
 
 import java.io.File;
 import java.io.IOException;
 import java.lang.reflect.InvocationTargetException;
 import java.util.*;
+import java.util.logging.Level;
 
 /**
  * Finds the best Java runtime to use.
  */
+@Log
 public final class JavaRuntimeFinder {
 
     private JavaRuntimeFinder() {
@@ -186,7 +189,8 @@
 
                 return releaseDetails.get("JAVA_VERSION");
             } catch (IOException e) {
-                throw new RuntimeException("Failed to read release file", e);
+                log.log(Level.WARNING, "Failed to read release file " + releaseFile.getAbsolutePath(), e);
+                return null;
             }
         }
 
diff --git a/launcher/src/main/java/com/skcraft/launcher/util/EnvironmentParser.java b/launcher/src/main/java/com/skcraft/launcher/util/EnvironmentParser.java
index 227afea..159ec63 100644
--- a/launcher/src/main/java/com/skcraft/launcher/util/EnvironmentParser.java
+++ b/launcher/src/main/java/com/skcraft/launcher/util/EnvironmentParser.java
@@ -83,7 +83,7 @@
 	}
 
 	private String parseValue() throws IOException {
-		StringBuffer buffer = new StringBuffer();
+		StringBuilder buffer = new StringBuilder();
 
 		while (true) {
 			char c = read();