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jdb

Section: User Commands (1)
Updated: 2000 ǯ 7 ·î 28 Æü
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jdb - Java ¥Ç¥Ð¥Ã¥¬  

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jdb [ options ] [ class ] [ arguments ]  

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arguments
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jdb ¥»¥Ã¥·¥ç¥ó¤Î³«»Ï

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example% jdb MyClass

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example% jdb -Xdebug \
   -Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n 

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example% jdb -attach 8000

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cont
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dump
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help ¤Þ¤¿¤Ï ?
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print
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*
print MyClass.myStaticField
*
print myObj.myInstanceField
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*
print myObj.myMethod() ( myMethod ¤¬ null °Ê³°¤òÊÖ¤¹¾ì¹ç)
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print new java.lang.String(Hello).length()
thread
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4. (java.lang.Thread)0x1 main running

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where
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stop at MyClass:22
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stop in java.lang.String.length
java.lang.String.length ¥á¥½¥Ã¥É¤ÎºÇ½é¤Ë¥Ö¥ì¡¼¥¯¥Ý¥¤¥ó¥È¤òÀßÄꤹ¤ë
stop in MyClass.init
init ¤Ï MyClass ¥³¥ó¥¹¥È¥é¥¯¥¿¤ò¼±Ê̤¹¤ë
stop in MyClass.clinit
clinit ¤Ï MyClass ¤ÎÀÅŪ¤Ê½é´ü²½¥³¡¼¥É¤ò¼±Ê̤¹¤ë

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MyClass.myMethod(int,java.lang.String)

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MyClass.myMethod()

clear ¥³¥Þ¥ó¥É¤Ï¡¢¡Ö clearMyClass:45 ¡×¤Î¤è¤¦¤Ê¹½Ê¸¤ò»ÈÍѤ·¤Æ¥Ö¥ì¡¼¥¯¥Ý¥¤¥ó¥È¤òºï½ü¤·¤Þ¤¹¡£ °ú¿ô¤ò»ØÄꤷ¤Ê¤¤¤Ç clear ¥³¥Þ¥ó¥É¤ò»ÈÍѤ¹¤ë¤È¡¢¸½ºßÀßÄꤵ¤ì¤Æ¤¤ ¤ë¤¹¤Ù¤Æ¤Î¥Ö¥ì¡¼¥¯¥Ý¥¤¥ó¥È¤¬É½¼¨¤µ¤ì¤Þ¤¹¡£ cont ¥³¥Þ¥ó¥É¤Ç¼Â¹Ô¤¬·Ñ³¤·¤Þ¤¹¡£  

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Îã³°½èÍýÍÑ¥³¥Þ¥ó¥É

¥¹¥í¡¼¤·¤Æ¤¤¤ë¥¹¥ì¥Ã¥É¤Î¸Æ¤Ó½Ð¤·¥¹¥¿¥Ã¥¯¾å¤Î¤É¤³¤Ë¤â catch ʸ¤¬¤Ê¤¤¤è¤¦¤Ê Îã³°¤¬È¯À¸¤¹¤ë¤È¡¢VM ¤ÏÄ̾Îã³°¥È¥ì¡¼¥¹¤ò½ÐÎϤ·¤Æ½ªÎ»¤·¤Þ¤¹¡£ ¤¿¤À¤·¡¢ jdb ´Ä¶­¤Ç¼Â¹Ô¤·¤Æ¤¤¤ë¾ì¹ç¤Ï¡¢¤³¤Î¤è¤¦¤ÊÎã³°¤¬È¯À¸¤¹¤ë¤È jdb ¤ËÀ©¸æ¤¬Ìá¤ê¤Þ¤¹¡£ ¼¡¤Ë¡¢ jdb ¤ò»ÈÍѤ·¤ÆÎã³°¤Î¸¶°ø¤ò¿ÇÃǤ·¤Þ¤¹¡£
catch
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catch java.io.FileNotFoundException

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catch mypackage.BigTroubleException

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ignore
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jdb ¤Ï¡¢¤½¤Î¤Û¤«¤Ë¼¡¤Î¥ª¥×¥·¥ç¥ó¤â»ÈÍѤǤ­¤Þ¤¹¡£

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-attach address
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´ØÏ¢¹àÌÜ

java(1)¡¢ javac(1)¡¢ javadoc(1)¡¢ javah(1)¡¢ javap(1)

¼¡¤Ë¤Ä¤¤¤Æ¤Ï¡¢ java.sun.com ¤ò»²¾È¤Þ¤¿¤Ï¸¡º÷¤·¤Æ¤¯¤À¤µ¤¤¡£

Java Language Debugging @
http://java.sun.com/j2se/1.3/debugging/index.html


 

Index

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jdb ¥»¥Ã¥·¥ç¥ó¤Î³«»Ï
jdb ´ðËÜ¥³¥Þ¥ó¥É
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Time: 12:05:19 GMT, March 28, 2024