JRE是否有诊断工具？

Question

有谁知道JRE(不是JDK)是否有诊断工具,如jps,jstack,jhat等？

或者这些工具只出现在JDK中？

谢谢.

Answer 1

这些文件都是jre(jre1.6.0_20 linux)中的所有文件:

rwxrwxrwx 1 bob bob     10 2010-05-12 19:40 ControlPanel -> ./jcontrol
-rwxr-xr-x 1 bob bob  47308 2010-04-12 22:36 java
-rwxr-xr-x 1 bob bob  25634 2010-04-12 22:39 java_vm
-rwxr-xr-x 1 bob bob  84970 2010-04-12 22:39 javaws
-rwxr-xr-x 1 bob bob   6347 2010-04-12 22:39 jcontrol
-rwxr-xr-x 1 bob bob  47447 2010-04-12 22:36 keytool
-rwxr-xr-x 1 bob bob  47679 2010-04-12 22:36 orbd
-rwxr-xr-x 1 bob bob  47515 2010-04-12 22:36 pack200
-rwxr-xr-x 1 bob bob  47807 2010-04-12 22:36 policytool
-rwxr-xr-x 1 bob bob  47447 2010-04-12 22:36 rmid
-rwxr-xr-x 1 bob bob  47447 2010-04-12 22:36 rmiregistry
-rwxr-xr-x 1 bob bob  47475 2010-04-12 22:36 servertool
-rwxr-xr-x 1 bob bob  47679 2010-04-12 22:36 tnameserv
-rwxr-xr-x 1 bob bob 189274 2010-04-12 22:36 unpack200

所以,答案是它们只存在于JDK中.