Add Intellij HotSwapHelper plugin.

[gejun123456]

Add Intellij HotSwapHelper plugin in IDE part.

[skybber]

Thanks!

[homejim]

@gejun123456 Thasnks!! I tried using this plugin and read some of the code. I think it is somewhat difficult for a new user to use, and there is room for improvement. My understanding of the plugin's functionality is:

1. It automatically adds parameters like -XX:HotswapAgent=fatjar and -XX:+AllowEnhancedClassRedefinition based on the original configuration.
2. It specifies the hotswap-agent.jar and adds the output results.

However, the user still needs to do quite a few things:

1. Understand DCEVM, and download and install the JDK themselves.
2. Specify the JDK during runtime.
3. It seems that the hotswap-agent.jar cannot be specified manually? What if I want to upgrade it? Do I need to manually overwrite it in C:/tmp/HotSwapAgent/?

Maybe you could consider optimizing these aspects.

[skybber]

@gejun123456 @homejim I recommend using -XX:HotswapAgent=external. This option --add-opens all JDK modules that HotswapAgent requires to be opened. Additionally, use the standard Java agent argument -javaagent:<path_to_latest_ha>/hotswap-agent.jar. If an external agent is used, the user (or HotswapHelper plugin) can place HotswapAgent anywhere where has access and is not restricted by the OS access rules, as if JBR is placed in a system directory like /usr/lib/jvm/jbr21/.

[gejun123456]

@homejim @skybber Thanks for the suggestion, the plugin will support user configure agent manually in later versions. For downloading jdk, i think it's easyier for user to use, or user has to manully search the jdk and install DCEVM.

[gejun123456]

Manually set jar file is supported, thanks. will add more feature in later versions. HotSwapHelper-1.0.2.zip