[Java generator] error: integer number too large

[TSC21]

Hey there,

I just tried to generate and compile the Java generated library from the the common dialect and the compiler fails with the following error:

output_dir_java/enums/MAV_SYS_STATUS_SENSOR.java:44: error: integer number too large
   public static final int MAV_SYS_STATUS_EXTENSION_USED = 2147483648; /* 0x80000000 Extended bit-field are used for further sensor status bits (needs to be set in onboard_control_sensors_present only) | */
                                                           ^
output_dir_java/enums/MAV_SYS_STATUS_SENSOR.java:45: error: integer number too large
   public static final int MAV_SYS_STATUS_SENSOR_ENUM_END = 2147483649; /*  | */
                                                            ^
output_dir_java/enums/HIL_SENSOR_UPDATED_FLAGS.java:27: error: integer number too large
   public static final int HIL_SENSOR_UPDATED_RESET = 2147483648; /* Full reset of attitude/position/velocities/etc was performed in sim (Bit 31). | */
                                                      ^
output_dir_java/enums/HIL_SENSOR_UPDATED_FLAGS.java:28: error: integer number too large
   public static final int HIL_SENSOR_UPDATED_FLAGS_ENUM_END = 2147483649; /*  | */
                                                               ^
4 errors

Steps to reproduce:

1. Use mavgen.py to generate the V2 library for Java in an output_dir
2. javac -d output_dir find output_dir -name "*.java"
3. The error above will pop.

This is confirmed to happen with both Java 11 and Java 14.

Thanks in advance for the assistance solving this!

[abroekhof]

This should be re-opened since the PR above was reverted. The bug still present in current versions.