IllegalAccessError when modifying a class extending JpaRepository

[Artur-]

Exception in thread "Thread-4636" java.lang.NoClassDefFoundError: Could not initialize class org.hotswap.agent.plugin.proxy.java.ProxyGenerator
        at org.hotswap.agent.plugin.proxy.ReloadJavaProxyCommand.executeSingleCommand(ReloadJavaProxyCommand.java:68)
        at org.hotswap.agent.plugin.proxy.ReloadJavaProxyCommand.executeCommand(ReloadJavaProxyCommand.java:52)
        at org.hotswap.agent.command.impl.CommandExecutor.run(CommandExecutor.java:43)
Caused by: java.lang.ExceptionInInitializerError: Exception java.lang.IllegalAccessError: class org.hotswap.agent.plugin.proxy.java.ProxyGenerator (in unnamed module @0x22ef9844) cannot access class sun.security.action.GetBooleanAction (in module java.base) because module java.base does not export sun.security.action to unnamed module @0x22ef9844 [in thread "Thread-4620"]
        at org.hotswap.agent.plugin.proxy.java.ProxyGenerator.<clinit>(ProxyGenerator.java:317)
        ... 3 more

Where should this add-opens be defined when running hotswap agent by copying it into JBR/lib/hotswap?

[skybber]

It must be in JVM arguments, in run configuration. I'll add it to JBR startup if -XX:HotswapAgent is used. This option currently automatically turns on:

java.base/java.lang=ALL-UNNAMED
java.base/jdk.internal.loader=ALL-UNNAMED
java.base/java.io=ALL-UNNAMED
java.desktop/java.beans=ALL-UNNAMED
java.desktop/com.sun.beans=ALL-UNNAMED
java.desktop/com.sun.beans.introspect=ALL-UNNAMED
java.desktop/com.sun.beans.util=ALL-UNNAMED

[skybber]

Did you try additional --add-opens on start?

[Artur-]

Yes, that resolves it but hopefully jbr can add it automatically