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sqldeveloper does not respond to keyboard after some time

user447000Jan 21 2026

Hi,

I use sqldeveloper Version 24.3.1.347 / Build 347.1826

wiht INstantclient instantclient_21_10

with
java version "17.0.18" 2026-01-20 LTS

under xubuntu 22.04 LTS.

I'm able to work with sqldeveloper for a while, say 1hour. But then it happens: sqldeveloper does not longer respond to keyboard input. I have to cancel to whole program und to restart. This is really annoying.

In the console I see messages like:

Exception "java.lang.ClassNotFoundException: com/intellij/openapi/editor/impl/EditorCopyPasteHelperImpl$CopyPasteOptionsTransferableData"while constructing DataFlavor for: application/x-java-serialized-object; class=com.intellij.openapi.editor.impl.EditorCopyPasteHelperImpl$CopyPasteOptionsTransferableData

Any help available?

Best regards
Thomas

Added on Jan 21 2026

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