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Editorial Team
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Asked: 2026-05-14T19:44:55+00:00

Does anyone know if JRE (not JDK) has diagnostics tools, such as jps, jstack,

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Does anyone know if JRE (not JDK) has diagnostics tools, such as jps, jstack, jhat and so on?

Or these tools only present in JDK?

Thanks.

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1 Answer

  1. Editorial Team

    These files are all you have in the jre (jre1.6.0_20 linux):

    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

    So, the answer is that they are only present in the JDK.

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