diff --git a/JavaCompilerPlugin/bundles/JavaCompilerPlugin.Plugin/src/typinferenzplugin/Typinferenz.java b/JavaCompilerPlugin/bundles/JavaCompilerPlugin.Plugin/src/typinferenzplugin/Typinferenz.java
index d6b5025..217e6ee 100644
--- a/JavaCompilerPlugin/bundles/JavaCompilerPlugin.Plugin/src/typinferenzplugin/Typinferenz.java
+++ b/JavaCompilerPlugin/bundles/JavaCompilerPlugin.Plugin/src/typinferenzplugin/Typinferenz.java
@@ -186,6 +186,10 @@ public class Typinferenz {
 	}
 
 	public void cancel() {
-		compiler.usedTasks.cancel();
+		try {
+			compiler.usedTasks.cancel();
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
 	}
 }