diff --git a/contribs/shared_mobility/src/test/java/org/matsim/contrib/shared_mobility/RunIT.java b/contribs/shared_mobility/src/test/java/org/matsim/contrib/shared_mobility/RunIT.java
index 36e3a978c99..975e64b1a88 100644
--- a/contribs/shared_mobility/src/test/java/org/matsim/contrib/shared_mobility/RunIT.java
+++ b/contribs/shared_mobility/src/test/java/org/matsim/contrib/shared_mobility/RunIT.java
@@ -1,5 +1,6 @@
 package org.matsim.contrib.shared_mobility;
 
+import java.io.UncheckedIOException;
 import java.net.URISyntaxException;
 import java.net.URL;
 import java.util.ArrayList;
diff --git a/matsim/src/test/java/org/matsim/core/controler/OutputDirectoryHierarchyTest.java b/matsim/src/test/java/org/matsim/core/controler/OutputDirectoryHierarchyTest.java
index 1654d7d9e47..0431939f972 100644
--- a/matsim/src/test/java/org/matsim/core/controler/OutputDirectoryHierarchyTest.java
+++ b/matsim/src/test/java/org/matsim/core/controler/OutputDirectoryHierarchyTest.java
@@ -28,6 +28,7 @@
 import java.io.BufferedWriter;
 import java.io.File;
 import java.io.IOException;
+import java.io.UncheckedIOException;
 
 /**
  * @author thibautd
diff --git a/matsim/src/test/java/org/matsim/core/utils/io/MatsimFileTypeGuesserTest.java b/matsim/src/test/java/org/matsim/core/utils/io/MatsimFileTypeGuesserTest.java
index 8e4b7df8ff7..34b26897bd8 100644
--- a/matsim/src/test/java/org/matsim/core/utils/io/MatsimFileTypeGuesserTest.java
+++ b/matsim/src/test/java/org/matsim/core/utils/io/MatsimFileTypeGuesserTest.java
@@ -26,6 +26,7 @@
 import static org.junit.Assert.fail;
 
 import java.io.IOException;
+import java.io.UncheckedIOException;
 
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
diff --git a/matsim/src/test/java/org/matsim/core/utils/io/MatsimXmlParserTest.java b/matsim/src/test/java/org/matsim/core/utils/io/MatsimXmlParserTest.java
index 2c7a7025d54..d7006b7ce1d 100644
--- a/matsim/src/test/java/org/matsim/core/utils/io/MatsimXmlParserTest.java
+++ b/matsim/src/test/java/org/matsim/core/utils/io/MatsimXmlParserTest.java
@@ -32,6 +32,7 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
+import java.io.UncheckedIOException;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.List;
@@ -207,7 +208,8 @@ public void endTag(String name, String content, Stack<String> context) {
 			}.parse(stream);
 			Assert.fail("expected exception.");
 		} catch (UncheckedIOException e) {
-			Assert.assertTrue(e.getCause() instanceof SAXParseException); // expected
+			Assert.assertTrue(e.getCause() instanceof IOException); // expected
+			Assert.assertTrue(e.getCause().getCause() instanceof SAXParseException); // expected
 		}
 
 		Assert.assertEquals(3, log.size());
@@ -282,7 +284,8 @@ public void endTag(String name, String content, Stack<String> context) {
 			}.parse(stream);
 			Assert.fail("expected exception.");
 		} catch (UncheckedIOException e) {
-			Assert.assertTrue(e.getCause() instanceof SAXParseException); // expected
+			Assert.assertTrue(e.getCause() instanceof IOException); // expected
+			Assert.assertTrue(e.getCause().getCause() instanceof SAXParseException); // expected
 		}
 
 		Assert.assertEquals(5, log.size());
diff --git a/matsim/src/test/java/org/matsim/testcases/MatsimTestUtils.java b/matsim/src/test/java/org/matsim/testcases/MatsimTestUtils.java
index adcd07b20e3..b568268cbae 100644
--- a/matsim/src/test/java/org/matsim/testcases/MatsimTestUtils.java
+++ b/matsim/src/test/java/org/matsim/testcases/MatsimTestUtils.java
@@ -35,6 +35,7 @@
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.IOException;
+import java.io.UncheckedIOException;
 import java.lang.reflect.Method;
 import java.net.MalformedURLException;
 import java.net.URL;
@@ -150,7 +151,7 @@ public URL packageInputResourcePath() {
 	private URL getResourceNotNull(String pathString) {
 		URL resource = this.testClass.getResource(pathString);
 		if (resource == null) {
-			throw new UncheckedIOException("Not found: "+pathString);
+			throw new UncheckedIOException(new IOException("Not found: "+pathString));
 		}
 		return resource;
 	}