changing a use of RuntimeException to a FlutterError

packages/camera/camera_android_camerax/android/src/main/java/io/flutter/plugins/camerax/SystemServicesHostApiImpl.java

@@ -129,7 +129,12 @@ public String getTempFilePath(@NonNull String prefix, @NonNull String suffix) {
       File path = File.createTempFile(prefix, suffix, context.getCacheDir());
       return path.toString();
     } catch (IOException | SecurityException e) {
-      throw new RuntimeException(e);
+      throw new GeneratedCameraXLibrary.FlutterError(
+              "getTempFilePath_failure",
+              "SystemServicesHostApiImpl.getTempFilePath encountered an exception: "
+                      + e.toString(),
+              null
+      );
     }
   }
 }

packages/camera/camera_android_camerax/android/src/test/java/io/flutter/plugins/camerax/SystemServicesTest.java

@@ -179,7 +179,7 @@ public void getTempFilePath_throwsRuntimeExceptionOnIOException() {
         .when(() -> File.createTempFile(prefix, suffix, mockOutputDir))
         .thenThrow(IOException.class);
     assertThrows(
-        RuntimeException.class, () -> systemServicesHostApi.getTempFilePath(prefix, suffix));
+        GeneratedCameraXLibrary.FlutterError.class, () -> systemServicesHostApi.getTempFilePath(prefix, suffix));
 
     mockedStaticFile.close();
   }