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Created attachment 164863 [details] nb/var/log/messages.log of a session with a freeze After creating a Java class ``` package com.mycompany.loong.string.preview; import org.apache.commons.lang3.RandomStringUtils; public class NewClass { public static void main(String[] args) { int charCount = 1024*1024; String randomString = RandomStringUtils.random(charCount); System.out.println(randomString); } } ``` and setting a breakpoint at line 10, hovering over `randomString` causes the UI to become unresponsive for ca. 2 minutes. Since longer strings are not unrealistic the freeze might be even longer. The above example with dependencies can be found at https://github.com/krichter722/loong-string-preview. experienced with dev-201707280001