Nobody has had this issue besides me?
There is a known issue when using copy/paste via shortcut keys. Not sure if it is entirely fixed yet -- here is the most comprehensive discussion link I could find:
SQL Developer Team
I got the same problem with the freeze! I got is mostly when i connect to a database, than open the tables. sometimes it freeze for 15sec, even windows marks it as not responsive.
I am on Version 126.96.36.199.
I did not check the cpu usage.
In my case, it has nothing to do with copy/pase. this behavior i have since the 4.x.x
Thank you Gary,
Than there is nothing to do than wait for a fix
Exactly. Until then, you must have the self-discipline to avoid the shortcut keys and only use the Edit menu's cut/copy/paste items.
In my case, it has nothing to do with copy/pase
If the problem is different, then we always ask that you start a new discussion thread providing a problem description and a test case (including your environment information) in the greatest detail possible. However, since your issue is only a delayed response at start-up and when opening the worksheet / object browser, here's some basic advice:
1. Release 4.x uses product.conf under folder %APPDATA%\sqldeveloper\188.8.131.52.0 to control Java VM memory settings. Increase Xms value (say, to 256m).
2. Uncheck Automatically check for updates at startup in Help > Check for Updates. This is old advice, though.
3. In Help > About > Extensions tab, look at the Total Time (scroll to the far right!) required to load the extensions. Mine says 3s 610ms.
Since initializing editors seems to cause a bigger memory spike in 4.x, starting with a higher Xms value (1) seems to help. As said, (2) is old advice. As for (3), if certain extensions you tend not to use show high load times, then try experimenting with disabling them in Tools > Features.