Gradle arguments containing spaces are not supported in project settings

[CsCherrYY]

Steps to Reproduce

1. git clone https://github.com/spring-projects/spring-petclinic
2. open and import it in eclipse, the import process will be finished successfully
3. add an init script in a folder with its name containing a space, and try to make it the init script in the project settings:
   
4. apply and close, try to refresh (synchorize) the project
5. you can find that the synchorize process failed with the following stacktrace:
   
6. after reopen the project properties, the arguments are splited automatically with space:
   

This issue also affects VS Code extension redhat.java which uses buildship as its Gradle integration.

Some findings

• it seems that buildship regards the part before the first space as a standalone part of the arguments
• it looks like if we set the workspace settings directly, there is no such issue, there might be some gap here
• I guess the root cause might be the arguments are joined directly with a single space:

  buildship/org.eclipse.buildship.core/src/main/java/org/eclipse/buildship/core/internal/configuration/BuildConfigurationPersistence.java

  Line 166 in 35d01ca

  preferences.write(PREF_KEY_JVM_ARGUMENTS, jvmArguments == null ? "" : Joiner.on(' ').join(jvmArguments));

  
  (but why the workspace setting works well :))

[rgrunber]

I was able to reproduce the same behaviour on Linux :

Version: 2022-09 (4.25)
Build id: I20220831-1800
Buildship: Eclipse Plug-ins for Gradle	3.1.6.v20220511-1359	org.eclipse.buildship.feature.group	Eclipse Buildship