fix test

Signed-off-by: jorgee <jorge.ejarque@seqera.io>

Author: jorgee

modules/nextflow/src/main/groovy/nextflow/util/SerializationHelper.groovy

@@ -112,10 +112,6 @@ class KryoHelper {
         kryo.addDefaultSerializer(GString, GStringSerializer)
         // map entry serializer
         kryo.addDefaultSerializer(Map.Entry, MapEntrySerializer)
-        // register PathSerializer as default for all Path implementations not explicitly registered
-        // (e.g. JimfsPath used in tests) to prevent Kryo's FieldSerializer from recursing into
-        // internal fields that may contain non-serializable objects such as lambdas (Guava 33.4+)
-        kryo.addDefaultSerializer(Path, PathSerializer)
 
         return kryo
     }

modules/nextflow/src/testFixtures/groovy/test/TestHelper.groovy

@@ -15,6 +15,11 @@
  */
 
 package test
+
+import com.google.common.jimfs.JimfsPath
+import nextflow.util.KryoHelper
+import nextflow.util.PathSerializer
+
 import java.nio.file.Files
 import java.nio.file.Path
 import java.util.zip.GZIPInputStream
@@ -53,6 +58,13 @@ class TestHelper {
 
     static private fs = Jimfs.newFileSystem(Configuration.unix());
 
+    static {
+        // Some tests failed after a Guava update (Guava 33.4+) when using Jimfs.
+        // Adding a default serializer for JimfsPaths to prevent Kryo's FieldSerializer from recursing into internal
+        // fields that may contain non-serializable objects such as lambdas
+        KryoHelper.kryo().addDefaultSerializer(JimfsPath.class, PathSerializer)
+    }
+
     static Path createInMemTempDir() {
         Path tmp = fs.getPath("/tmp");
         tmp.mkdir()