[client] Try to do a better job cleaning up when closing wizards

1 files changed, 6 insertions, 1 deletions

diff --git a/dozentenmodul/src/main/java/org/openslx/dozmod/gui/wizard/LectureWizard.java b/dozentenmodul/src/main/java/org/openslx/dozmod/gui/wizard/LectureWizard.java
index bd7c0aeb..6df5c494 100644
--- a/dozentenmodul/src/main/java/org/openslx/dozmod/gui/wizard/LectureWizard.java
+++ b/dozentenmodul/src/main/java/org/openslx/dozmod/gui/wizard/LectureWizard.java
@@ -29,7 +29,7 @@ public class LectureWizard extends Wizard implements UiFeedback {
 
 	private final static Logger LOGGER = LogManager.getLogger(LectureWizard.class);
 
-	public final LectureWizardState state = new LectureWizardState();
+	public LectureWizardState state = new LectureWizardState();
 
 	/**
 	 * Wizard for creating or editing a lecture.
@@ -144,4 +144,9 @@ public class LectureWizard extends Wizard implements UiFeedback {
 		lw.networkExceptions = state.netRules;
 		return lw;
 	}
+
+	@Override
+	protected void doCleanup() {
+		state = null;
+	}
 }