private void fileOpened() {
		++openFileHandleCount; // force immediate change instead of waiting for delayed update event
		ignoreNextOpenFileCountEvent = true; // avoid race condition
	}
Verify that the connection is still valid.
@return true if the connection is valid; false if the connection needs to be reestablished
Ghidra/Framework/FileSystem/src/main/java/ghidra/framework/client/RepositoryAdapter.java