| 
Robocode

Robocode Security Error

View: New views
2 Messages — Rating Filter:   Alert me  

Robocode Security Error

by asherbaig :: Rate this Message:

Reply to Author | View Threaded | Show Only this Message

Hi,
I have problem with my newly created robot for which what i did is
create class named as KeyStrokeConfig inside robocode manager.And for
my Sprobot i made changes in it.Please see keyStrokeConfig.java and
Sprobot.java.Now when i try to run my game and try to play with
Sprobot it gives me this error


Rebuilding robot database.
multiplayer.MprobotTest: Got an error with this class:
java.lang.IllegalStateException: Can't overwrite cause
multiplayer.MprobotTest2: Got an error with this class:
java.lang.IllegalStateException: Can't overwrite cause
multiplayer.MprobotTest3: Got an error with this class:
java.lang.IllegalStateException: Can't overwrite cause
sample.Uniteam3aTest: Got an error with this class:
java.lang.IllegalStateException: Can't overwrite cause
Preparing battle...
----------------------

Let the games begin!
Testing value10
Preparing battle...
Round 1 cleaning up.
----------------------
Round 1 initializing..java.security.AccessControlException: Preventing
Robot Loader from access to the internal Robocode pakage: robocode.manager
java.security.AccessControlException: Preventing Robot Loader from
access to the internal Robocode pakage: robocode.manager
        at
robocode.security.RobocodeSecurityManager.checkPackageAccess(RobocodeSecurityManager.java:559)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:273)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
        at
robocode.security.RobocodeClassLoader.loadClass(RobocodeClassLoader.java:116)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
        at singleplayer.Sprobot.<init>(Sprobot.java:26)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at java.lang.Class.newInstance0(Class.java:355)
        at java.lang.Class.newInstance(Class.java:308)
        at robocode.battle.Battle.unsafeLoadRobots(Battle.java:1435)
        at robocode.battle.Battle$UnsafeLoadRobotsThread.run(Battle.java:1679)
java.security.AccessControlException: Preventing Robot Loader from
access to the internal Robocode pakage: robocode.manager
java.security.AccessControlException: Preventing Robot Loader from
access to the internal Robocode pakage: robocode.manager
        at
robocode.security.RobocodeSecurityManager.checkPackageAccess(RobocodeSecurityManager.java:559)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:273)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
        at
robocode.security.RobocodeClassLoader.loadClass(RobocodeClassLoader.java:116)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
        at singleplayer.Sprobot.<init>(Sprobot.java:26)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at java.lang.Class.newInstance0(Class.java:355)
        at java.lang.Class.newInstance(Class.java:308)
        at robocode.battle.Battle.unsafeLoadRobots(Battle.java:1435)
        at robocode.battle.Battle$UnsafeLoadRobotsThread.run(Battle.java:1679)
..



Here are KeyStrokeConfig,java

package robocode.manager;

public class KeyStrokeConfig {
       
        public
        int UpKey=0x26;
        int DownKey=0x28;
        int RightKey=0x27;
        int LeftKey=0x25;
        int FirePower1Key=0x4A;
        int FirePower2Key=0x48;
        int FirePower3Key=0x47;
        int GunRightKey=0x55;
        int GunLeftKey=0x49;
       
       
        public void setKeysValues(int upKey,int downKey,
        int rightKey,
        int leftKey,
        int firePower1Key,
        int firePower2Key,
        int firePower3Key,
        int gunRightKey,
        int gunLeftKey)
        {
                UpKey=upKey;
                DownKey=downKey;
                RightKey=rightKey;
                LeftKey=leftKey;
                FirePower1Key=firePower1Key;
                FirePower2Key=firePower2Key;
                FirePower3Key=firePower3Key;
                GunRightKey=gunRightKey;
                GunLeftKey=gunLeftKey;
               
        }
        public int getRightKey()
        {
                return RightKey;
        }

        public int getDownKey()
        {
                return DownKey;
        }
        public int getUpKey()
        {
                return UpKey;
                }
        public int getleftKey()
        {
                return LeftKey;
        }
        public int getFirePower1Key()
        {
                return FirePower1Key;
        }
        public int getFirePower2Key()
        {
                return FirePower2Key;
        }
        public int getFirePower3Key()
        {
                return FirePower3Key;
        }
        public int getGunRightKey()
        {
                return GunRightKey;
        }
        public int getGunleftKey()
        {
                return GunLeftKey;
        }

}


Here is my Sprobot.java

package singleplayer;
import robocode.AdvancedRobot;
import robocode.manager.RobocodeManager;
import robocode.manager.*;

import java.awt.*;
import java.awt.event.KeyEvent;


public class Sprobot extends AdvancedRobot {
       
        public RobocodeManager manager;
                // Move direction: 1 = move forward, 0 = stand still, -1 = move backward
                int moveDirection;

                // Turn direction: 1 = turn right, 0 = no turning, -1 = turn left
                int turnDirection;

                // Amount of pixels/units to move
                double moveAmount;
               
                // Fire power, where 0 = don't fire
                int firePower;
                int firePower2;
                String sr;
                KeyStrokeConfig keyconfig= new KeyStrokeConfig();
               
                // Called when the robot must run
                public void run() {

                        // Sets the colors of the robot
                        // body = black, gun = white, radar = red
                        setColors(Color.BLACK, Color.BLACK, Color.YELLOW);

                        // Loop forever
                        for (;;) {
                                // Sets the robot to move forward, backward or stop moving depending
                                // on the move direction and amount of pixels to move
                                setAhead(moveAmount * moveDirection);

                                // Decrement the amount of pixels to move until we reach 0 pixels
                                // This way the robot will automatically stop if the mouse wheel
                                // has stopped it's rotation
                                moveAmount = Math.max(0, moveAmount - 1);

                                // Sets the robot to turn right or turn left (at maximum speed) or
                                // stop turning depending on the turn direction
                                setTurnRight(45 * turnDirection); // degrees

                       

                                // Fire the gun with the specified fire power, unless the fire
power = 0
                                if (firePower > 0) {
                                        setFire(firePower);
                                }

                                // Execute all pending set-statements
                                execute();

                                // Next turn is processed in this loop..
                        }
                }

               
                public void onKeyPressed(KeyEvent e) {
                                               
                        if(e.getKeyCode()==keyconfig.getUpKey())
                        {
                                moveDirection = 1;
                                moveAmount = Double.POSITIVE_INFINITY;
                        }
                        if(e.getKeyCode()==keyconfig.getDownKey())
                        {
                                moveDirection = -1;
                                moveAmount = Double.POSITIVE_INFINITY;
                        }
                        if(e.getKeyCode()==keyconfig.getleftKey())
                        {
                                turnDirection = -1;
                        }
                        if(e.getKeyCode()==keyconfig.getRightKey())
                        {
                                turnDirection = 1;
                        }
                        if(e.getKeyCode()==keyconfig.getFirePower1Key())
                        {
                                firePower = 3;
                                setBulletColor(Color.RED);
                        }
                        if(e.getKeyCode()==keyconfig.getFirePower2Key())
                        {
                                firePower = 2;
                                setBulletColor(Color.YELLOW);
                        }
                        if(e.getKeyCode()==keyconfig.getFirePower3Key())
                        {
                                firePower = 1;
                                setBulletColor(Color.BLUE);
                        }
                        if(e.getKeyCode()==keyconfig.getGunleftKey())
                        {
                                char c = e.getKeyChar();
                                if (c == 'u') {
                                setTurnGunLeft(90);
                                }
                        }
                        if(e.getKeyCode()==keyconfig.getGunRightKey())
                        {
                                        char d = e.getKeyChar();
                                        if (d == 'u') {
                                        setTurnGunRight(90);
                                        }
                        }
                        }
                               
                public void onKeyReleased(KeyEvent e) {
                        if(e.getKeyCode()==keyconfig.getUpKey())
                        {
                       
                        }
                        if(e.getKeyCode()==keyconfig.getDownKey())
                        {
                                moveDirection = 0;
                        }
                        if(e.getKeyCode()==keyconfig.getleftKey())
                        {
                                turnDirection = 0;
                        }
                        if(e.getKeyCode()==keyconfig.getRightKey())
                        {
                               
                        }
                        if(e.getKeyCode()==keyconfig.getFirePower1Key())
                        {
                                firePower = 0;
                        }
                        if(e.getKeyCode()==keyconfig.getFirePower2Key())
                        {
                                firePower = 0;
                       
                        }
                        if(e.getKeyCode()==keyconfig.getFirePower3Key())
                        {
                                firePower = 0;
                       
                        }
                       
                }
                }



Re: Robocode Security Error

by flemmingnlarsen-2 :: Rate this Message:

Reply to Author | View Threaded | Show Only this Message

You got the following exception:

java.security.AccessControlException: Preventing Robot Loader from
access to the internal Robocode pakage: robocode.manager
java.security.AccessControlException: Preventing Robot Loader from
 access to the internal Robocode pakage: robocode.manager

The reason is that robots are not allowed to access internal Robocode
packages and classes other than the public API that is visible from
the javadocs (see http://robocode.sourceforge.net/docs/robocode/).
Robot's should not mess with game logic etc. That would be hacking the
API, and the Robocode Security Manager prohibits this as you see.

There are several reasons for this:
1) Security: Robots should not be able to access internal logic - they
could cheat!
2) Security: Robots could misuse the API, and hence do harm on the
users computer, like a virus or similar.
3) The internal logic in Robocode is always changed. If robots or
other applications were allowed to use it, they would expect these
never to change, which is definitely not true. Classes, methods etc.
inside the game come and go every release.

Howver, the user is able to disable some security, but not all. You
can set the -DNOSECURITY=true with the robocode.cmd/sh file like this:

java -Xmx512M -DNOSECURITY=true -Dsun.io.useCanonCaches=false -cp
libs/robocode.jar;libs/codesize.jar;libs/cachecleaner.jar
robocode.Robocode

But this can only be done by the user, so it will only work on your
system, if you disable security.

Best regards,
- Flemming

--- In Robocode@..., "asherbaig" <devilvsevil@...> wrote:

>
> Hi,
> I have problem with my newly created robot for which what i did is
> create class named as KeyStrokeConfig inside robocode manager.And for
> my Sprobot i made changes in it.Please see keyStrokeConfig.java and
> Sprobot.java.Now when i try to run my game and try to play with
> Sprobot it gives me this error
>
>
> Rebuilding robot database.
> multiplayer.MprobotTest: Got an error with this class:
> java.lang.IllegalStateException: Can't overwrite cause
> multiplayer.MprobotTest2: Got an error with this class:
> java.lang.IllegalStateException: Can't overwrite cause
> multiplayer.MprobotTest3: Got an error with this class:
> java.lang.IllegalStateException: Can't overwrite cause
> sample.Uniteam3aTest: Got an error with this class:
> java.lang.IllegalStateException: Can't overwrite cause
> Preparing battle...
> ----------------------
>
> Let the games begin!
> Testing value10
> Preparing battle...
> Round 1 cleaning up.
> ----------------------
> Round 1 initializing..java.security.AccessControlException: Preventing
> Robot Loader from access to the internal Robocode pakage:
robocode.manager
> java.security.AccessControlException: Preventing Robot Loader from
> access to the internal Robocode pakage: robocode.manager
> at
>
robocode.security.RobocodeSecurityManager.checkPackageAccess(RobocodeSecurityManager.java:559)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:273)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
> at
>
robocode.security.RobocodeClassLoader.loadClass(RobocodeClassLoader.java:116)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
> at singleplayer.Sprobot.<init>(Sprobot.java:26)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
> at
>
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> at
>
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

> at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
> at java.lang.Class.newInstance0(Class.java:355)
> at java.lang.Class.newInstance(Class.java:308)
> at robocode.battle.Battle.unsafeLoadRobots(Battle.java:1435)
> at robocode.battle.Battle$UnsafeLoadRobotsThread.run(Battle.java:1679)
> java.security.AccessControlException: Preventing Robot Loader from
> access to the internal Robocode pakage: robocode.manager
> java.security.AccessControlException: Preventing Robot Loader from
> access to the internal Robocode pakage: robocode.manager
> at
>
robocode.security.RobocodeSecurityManager.checkPackageAccess(RobocodeSecurityManager.java:559)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:273)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
> at
>
robocode.security.RobocodeClassLoader.loadClass(RobocodeClassLoader.java:116)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
> at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
> at singleplayer.Sprobot.<init>(Sprobot.java:26)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
> at
>
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> at
>
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

> at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
> at java.lang.Class.newInstance0(Class.java:355)
> at java.lang.Class.newInstance(Class.java:308)
> at robocode.battle.Battle.unsafeLoadRobots(Battle.java:1435)
> at robocode.battle.Battle$UnsafeLoadRobotsThread.run(Battle.java:1679)
> ..
>
>
>
> Here are KeyStrokeConfig,java
>
> package robocode.manager;
>
> public class KeyStrokeConfig {
>
> public
> int UpKey=0x26;
> int DownKey=0x28;
> int RightKey=0x27;
> int LeftKey=0x25;
> int FirePower1Key=0x4A;
> int FirePower2Key=0x48;
> int FirePower3Key=0x47;
> int GunRightKey=0x55;
> int GunLeftKey=0x49;
>
>
> public void setKeysValues(int upKey,int downKey,
> int rightKey,
> int leftKey,
> int firePower1Key,
> int firePower2Key,
> int firePower3Key,
> int gunRightKey,
> int gunLeftKey)
> {
> UpKey=upKey;
> DownKey=downKey;
> RightKey=rightKey;
> LeftKey=leftKey;
> FirePower1Key=firePower1Key;
> FirePower2Key=firePower2Key;
> FirePower3Key=firePower3Key;
> GunRightKey=gunRightKey;
> GunLeftKey=gunLeftKey;
>
> }
> public int getRightKey()
> {
> return RightKey;
> }
>
> public int getDownKey()
> {
> return DownKey;
> }
> public int getUpKey()
> {
> return UpKey;
> }
> public int getleftKey()
> {
> return LeftKey;
> }
> public int getFirePower1Key()
> {
> return FirePower1Key;
> }
> public int getFirePower2Key()
> {
> return FirePower2Key;
> }
> public int getFirePower3Key()
> {
> return FirePower3Key;
> }
> public int getGunRightKey()
> {
> return GunRightKey;
> }
> public int getGunleftKey()
> {
> return GunLeftKey;
> }
>
> }
>
>
> Here is my Sprobot.java
>
> package singleplayer;
> import robocode.AdvancedRobot;
> import robocode.manager.RobocodeManager;
> import robocode.manager.*;
>
> import java.awt.*;
> import java.awt.event.KeyEvent;
>
>
> public class Sprobot extends AdvancedRobot {
>
> public RobocodeManager manager;
> // Move direction: 1 = move forward, 0 = stand still, -1 = move
backward

> int moveDirection;
>
> // Turn direction: 1 = turn right, 0 = no turning, -1 = turn left
> int turnDirection;
>
> // Amount of pixels/units to move
> double moveAmount;
>
> // Fire power, where 0 = don't fire
> int firePower;
> int firePower2;
> String sr;
> KeyStrokeConfig keyconfig= new KeyStrokeConfig();
>
> // Called when the robot must run
> public void run() {
>
> // Sets the colors of the robot
> // body = black, gun = white, radar = red
> setColors(Color.BLACK, Color.BLACK, Color.YELLOW);
>
> // Loop forever
> for (;;) {
> // Sets the robot to move forward, backward or stop moving depending
> // on the move direction and amount of pixels to move
> setAhead(moveAmount * moveDirection);
>
> // Decrement the amount of pixels to move until we reach 0 pixels
> // This way the robot will automatically stop if the mouse wheel
> // has stopped it's rotation
> moveAmount = Math.max(0, moveAmount - 1);
>
> // Sets the robot to turn right or turn left (at maximum speed) or
> // stop turning depending on the turn direction
> setTurnRight(45 * turnDirection); // degrees
>
>
>
> // Fire the gun with the specified fire power, unless the fire
> power = 0
> if (firePower > 0) {
> setFire(firePower);
> }
>
> // Execute all pending set-statements
> execute();
>
> // Next turn is processed in this loop..
> }
> }
>
>
> public void onKeyPressed(KeyEvent e) {
>
> if(e.getKeyCode()==keyconfig.getUpKey())
> {
> moveDirection = 1;
> moveAmount = Double.POSITIVE_INFINITY;
> }
> if(e.getKeyCode()==keyconfig.getDownKey())
> {
> moveDirection = -1;
> moveAmount = Double.POSITIVE_INFINITY;
> }
> if(e.getKeyCode()==keyconfig.getleftKey())
> {
> turnDirection = -1;
> }
> if(e.getKeyCode()==keyconfig.getRightKey())
> {
> turnDirection = 1;
> }
> if(e.getKeyCode()==keyconfig.getFirePower1Key())
> {
> firePower = 3;
> setBulletColor(Color.RED);
> }
> if(e.getKeyCode()==keyconfig.getFirePower2Key())
> {
> firePower = 2;
> setBulletColor(Color.YELLOW);
> }
> if(e.getKeyCode()==keyconfig.getFirePower3Key())
> {
> firePower = 1;
> setBulletColor(Color.BLUE);
> }
> if(e.getKeyCode()==keyconfig.getGunleftKey())
> {
> char c = e.getKeyChar();
> if (c == 'u') {
> setTurnGunLeft(90);
> }
> }
> if(e.getKeyCode()==keyconfig.getGunRightKey())
> {
> char d = e.getKeyChar();
> if (d == 'u') {
> setTurnGunRight(90);
> }
> }
> }
>
> public void onKeyReleased(KeyEvent e) {
> if(e.getKeyCode()==keyconfig.getUpKey())
> {
>
> }
> if(e.getKeyCode()==keyconfig.getDownKey())
> {
> moveDirection = 0;
> }
> if(e.getKeyCode()==keyconfig.getleftKey())
> {
> turnDirection = 0;
> }
> if(e.getKeyCode()==keyconfig.getRightKey())
> {
>
> }
> if(e.getKeyCode()==keyconfig.getFirePower1Key())
> {
> firePower = 0;
> }
> if(e.getKeyCode()==keyconfig.getFirePower2Key())
> {
> firePower = 0;
>
> }
> if(e.getKeyCode()==keyconfig.getFirePower3Key())
> {
> firePower = 0;
>
> }
>
> }
> }
>


Free embeddable forum powered by Nabble Forum Help