Re: what's the Bootstrap when I use "stream" result type for a picture output

[Mike Guo]

hi, thanks for your response. 

I got this solved . here’s the article  I searched, it can explain why and how 
about this thing.

http://www.oracle.com/technetwork/articles/javase/headless-136834.html 



thanks again


Mike.G


> 在 2015年9月24日，15:37，Christoph Nenning  写道：
> 
>> Hi. all.
>> 
>> I got a very strange issues.
>> 
>> I tried to generate dynamic check code by struts2.  so, I used 
>> buffered image and javax.imageio for a byteinputstream in my Action.
>> 
>> look like the function work fine. but strange thing is:  every time 
>> when I access that dynamic check code action. system will be start a
>> java application “Bootstrap”
>> 
>> please check the picture. also, when quit this Bootstrap java 
>> application, and my tomcat is stop running too.
>> 
>> would you please share with me what’s this? and why it running by 
> automatic?
>> 
>> [Image removed] 
>> 
>> thanks so much
>> 
>> Mike.G
> 
> 
> well, this question was cross-posted on tomcat-user list and there were 
> some responses on that list.
> 
> 
> This Email was scanned by Sophos Anti Virus

Re: what's the Bootstrap when I use "stream" result type for a picture output

[Christoph Nenning]

> Hi. all.
> 
> I got a very strange issues.
> 
> I tried to generate dynamic check code by struts2.  so, I used 
> buffered image and javax.imageio for a byteinputstream in my Action.
> 
> look like the function work fine. but strange thing is:  every time 
> when I access that dynamic check code action. system will be start a
> java application “Bootstrap”
> 
> please check the picture. also, when quit this Bootstrap java 
> application, and my tomcat is stop running too.
> 
> would you please share with me what’s this? and why it running by 
automatic?
> 
> [Image removed] 
> 
> thanks so much
> 
> Mike.G


well, this question was cross-posted on tomcat-user list and there were 
some responses on that list.


This Email was scanned by Sophos Anti Virus

Re: what's the Bootstrap when I use "stream" result type for a picture output

[Mike Guo]

Anyone? Please.  


发自我的 iPhone

> 在 2015年9月24日，02:15，Mike Guo  写道：
> 
> Hi. all.
> 
> I got a very strange issues.
> 
> I tried to generate dynamic check code by struts2.  so, I used buffered image 
> and javax.imageio for a byteinputstream in my Action.
> 
> look like the function work fine. but strange thing is:  every time when I 
> access that dynamic check code action. system will be start a java 
> application “Bootstrap”
> 
> please check the picture. also, when quit this Bootstrap java application, 
> and my tomcat is stop running too.
> 
> 
> 
> would you please share with me what’s this? and why it running by automatic?
> 
> <屏幕快照 2015-09-24 02.13.46.png>
> 
> 
> 
> thanks so much
> 
> 
> Mike.G
> 


-
To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
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Re: what's the Bootstrap when I use "stream" result type for a picture output

[Mike Guo]

ok, I just found it is not related with tomcat or struts.

I just use this code:


import java.util.Arrays;
  
import javax.imageio.ImageIO;
  
public class ListImageFormatters {
  
public static void main(String[] args) {
String[] readerFormatNames = ImageIO.getReaderFormatNames();
//[BMP, bmp, jpg, JPG, wbmp, jpeg, png, PNG, JPEG, WBMP, GIF, gif]
System.out.println(Arrays.toString(readerFormatNames));
  
//[jpg, BMP, bmp, JPG, jpeg, wbmp, png, JPEG, PNG, WBMP, GIF, gif]
String[] writerFormatNames = ImageIO.getWriterFormatNames();
System.out.println(Arrays.toString(writerFormatNames));
}
  
}

and it will start the Bootstrap too.


so, look like it is belong to JDK part. 

but I don’t understand it still. is there anyone can share some tips to me?


thanks so much


Mike.G




> 在 2015年9月24日，11:32，Mike Guo  写道：
> 
> Anyone? Please.  
> 
> 
> 发自我的 iPhone
> 
>> 在 2015年9月24日，02:15，Mike Guo  写道：
>> 
>> Hi. all.
>> 
>> I got a very strange issues.
>> 
>> I tried to generate dynamic check code by struts2.  so, I used buffered 
>> image and javax.imageio for a byteinputstream in my Action.
>> 
>> look like the function work fine. but strange thing is:  every time when I 
>> access that dynamic check code action. system will be start a java 
>> application “Bootstrap”
>> 
>> please check the picture. also, when quit this Bootstrap java application, 
>> and my tomcat is stop running too.
>> 
>> 
>> 
>> would you please share with me what’s this? and why it running by automatic?
>> 
>> <屏幕快照 2015-09-24 02.13.46.png>
>> 
>> 
>> 
>> thanks so much
>> 
>> 
>> Mike.G
>> 
> 
> 
> -
> To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
> For additional commands, e-mail: user-h...@struts.apache.org
> 

Re: what's the Bootstrap when I use "stream" result type for a picture output

[Mike Guo]

ok, finally, I got the solution for this one.  although I don’t know why.

I just add one java param in here:
java -Djava.awt.headless=true then it will be gone.



thanks 


Mike.G


> 在 2015年9月24日，12:02，Mike Guo  写道：
> 
> ok, I just found it is not related with tomcat or struts.
> 
> I just use this code:
> 
> 
> import java.util.Arrays;
> 
> import javax.imageio.ImageIO;
> 
> public class ListImageFormatters {
> 
>public static void main(String[] args) {
>String[] readerFormatNames = ImageIO.getReaderFormatNames();
>//[BMP, bmp, jpg, JPG, wbmp, jpeg, png, PNG, JPEG, WBMP, GIF, gif]
>System.out.println(Arrays.toString(readerFormatNames));
> 
>//[jpg, BMP, bmp, JPG, jpeg, wbmp, png, JPEG, PNG, WBMP, GIF, gif]
>String[] writerFormatNames = ImageIO.getWriterFormatNames();
>System.out.println(Arrays.toString(writerFormatNames));
>}
> 
> }
> 
> and it will start the Bootstrap too.
> 
> 
> so, look like it is belong to JDK part. 
> 
> but I don’t understand it still. is there anyone can share some tips to me?
> 
> 
> thanks so much
> 
> 
> Mike.G
> 
> 
> 
> 
>> 在 2015年9月24日，11:32，Mike Guo  写道：
>> 
>> Anyone? Please.  
>> 
>> 
>> 发自我的 iPhone
>> 
>>> 在 2015年9月24日，02:15，Mike Guo  写道：
>>> 
>>> Hi. all.
>>> 
>>> I got a very strange issues.
>>> 
>>> I tried to generate dynamic check code by struts2.  so, I used buffered 
>>> image and javax.imageio for a byteinputstream in my Action.
>>> 
>>> look like the function work fine. but strange thing is:  every time when I 
>>> access that dynamic check code action. system will be start a java 
>>> application “Bootstrap”
>>> 
>>> please check the picture. also, when quit this Bootstrap java application, 
>>> and my tomcat is stop running too.
>>> 
>>> 
>>> 
>>> would you please share with me what’s this? and why it running by automatic?
>>> 
>>> <屏幕快照 2015-09-24 02.13.46.png>
>>> 
>>> 
>>> 
>>> thanks so much
>>> 
>>> 
>>> Mike.G
>>> 
>> 
>> 
>> -
>> To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
>> For additional commands, e-mail: user-h...@struts.apache.org
>> 
> 

Re: what's the Bootstrap when I use "stream" result type for a picture output

[Mike Guo]

and I think the finally answer is here:

http://www.oracle.com/technetwork/articles/javase/headless-136834.html 




just for record.

Mike.G


> 在 2015年9月24日，12:05，Mike Guo  写道：
> 
> ok, finally, I got the solution for this one.  although I don’t know why.
> 
> I just add one java param in here:
> java -Djava.awt.headless=true then it will be gone.
> 
> 
> 
> thanks 
> 
> 
> Mike.G
> 
> 
>> 在 2015年9月24日，12:02，Mike Guo  写道：
>> 
>> ok, I just found it is not related with tomcat or struts.
>> 
>> I just use this code:
>> 
>> 
>> import java.util.Arrays;
>> 
>> import javax.imageio.ImageIO;
>> 
>> public class ListImageFormatters {
>> 
>>   public static void main(String[] args) {
>>   String[] readerFormatNames = ImageIO.getReaderFormatNames();
>>   //[BMP, bmp, jpg, JPG, wbmp, jpeg, png, PNG, JPEG, WBMP, GIF, gif]
>>   System.out.println(Arrays.toString(readerFormatNames));
>> 
>>   //[jpg, BMP, bmp, JPG, jpeg, wbmp, png, JPEG, PNG, WBMP, GIF, gif]
>>   String[] writerFormatNames = ImageIO.getWriterFormatNames();
>>   System.out.println(Arrays.toString(writerFormatNames));
>>   }
>> 
>> }
>> 
>> and it will start the Bootstrap too.
>> 
>> 
>> so, look like it is belong to JDK part. 
>> 
>> but I don’t understand it still. is there anyone can share some tips to me?
>> 
>> 
>> thanks so much
>> 
>> 
>> Mike.G
>> 
>> 
>> 
>> 
>>> 在 2015年9月24日，11:32，Mike Guo  写道：
>>> 
>>> Anyone? Please.  
>>> 
>>> 
>>> 发自我的 iPhone
>>> 
 在 2015年9月24日，02:15，Mike Guo  写道：
 
 Hi. all.
 
 I got a very strange issues.
 
 I tried to generate dynamic check code by struts2.  so, I used buffered 
 image and javax.imageio for a byteinputstream in my Action.
 
 look like the function work fine. but strange thing is:  every time when I 
 access that dynamic check code action. system will be start a java 
 application “Bootstrap”
 
 please check the picture. also, when quit this Bootstrap java application, 
 and my tomcat is stop running too.
 
 
 
 would you please share with me what’s this? and why it running by 
 automatic?
 
 <屏幕快照 2015-09-24 02.13.46.png>
 
 
 
 thanks so much
 
 
 Mike.G
 
>>> 
>>> 
>>> -
>>> To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
>>> For additional commands, e-mail: user-h...@struts.apache.org
>>> 
>> 
>