Serialize exceptions in error-handler manually to fix problems with Serialization in some caching frameworks

2 files changed, 29 insertions, 14 deletions

diff --git a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/controller/AbstractController.java b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/controller/AbstractController.java
index e9687833..58c8c0a9 100644
--- a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/controller/AbstractController.java
+++ b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/controller/AbstractController.java
@@ -47,6 +47,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.ApplicationContext;
+import org.springframework.util.SerializationUtils;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 
 /**
@@ -170,11 +171,21 @@ public abstract class AbstractController {
     final String errorKey = Random.nextLongRandom();
     if (errorToHandle.getFirst() != null) {
       revisionsLogger.logEvent(errorToHandle.getFirst(), EventConstants.TRANSACTION_ERROR);
-      transactionStorage.put(errorKey, new ExceptionContainer(errorToHandle.getFirst(), errorToHandle
-          .getSecond()), -1);
+
+      log.trace("Serializing {} ... ", ExceptionContainer.class.getName());
+      final byte[] serializedError = SerializationUtils.serialize(
+          new ExceptionContainer(errorToHandle.getFirst(), errorToHandle.getSecond()));
+
+      log.trace("Put 'ExceptionContainer' into cache ... ");
+      transactionStorage.put(errorKey, serializedError, -1);
 
     } else {
-      transactionStorage.put(errorKey, new ExceptionContainer(null, errorToHandle.getSecond()), -1);
+      log.trace("Serializing {} ... ", ExceptionContainer.class.getName());
+      final byte[] serializedError = SerializationUtils.serialize(
+          new ExceptionContainer(null, errorToHandle.getSecond()));
+
+      log.trace("Put 'ExceptionContainer' into cache ... ");
+      transactionStorage.put(errorKey, serializedError, -1);
 
     }
 
diff --git a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/controller/ProtocolFinalizationController.java b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/controller/ProtocolFinalizationController.java
index 17da63f5..dc8caabd 100644
--- a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/controller/ProtocolFinalizationController.java
+++ b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/controller/ProtocolFinalizationController.java
@@ -24,14 +24,6 @@ import java.io.IOException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
-import org.apache.commons.text.StringEscapeUtils;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Controller;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestMethod;
-
 import at.gv.egiz.components.eventlog.api.EventConstants;
 import at.gv.egiz.eaaf.core.api.IRequest;
 import at.gv.egiz.eaaf.core.api.IRequestStorage;
@@ -40,6 +32,15 @@ import at.gv.egiz.eaaf.core.api.data.EaafConstants;
 import at.gv.egiz.eaaf.core.api.data.ExceptionContainer;
 import at.gv.egiz.eaaf.core.exceptions.EaafException;
 
+import org.apache.commons.text.StringEscapeUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.util.SerializationUtils;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+
 /**
  * Protocol finialization end-point.
  *
@@ -73,12 +74,15 @@ public class ProtocolFinalizationController extends AbstractController {
       IRequest pendingReq = null;
       try {
         // load stored exception from database
-        final ExceptionContainer container =
-            transactionStorage.get(errorid, ExceptionContainer.class);
-        if (container != null) {
+        final byte[] containerSerialized =
+            transactionStorage.get(errorid, byte[].class);
+        if (containerSerialized != null) {
           // remove exception if it was found
           transactionStorage.remove(errorid);
 
+          final ExceptionContainer container =
+              (ExceptionContainer) SerializationUtils.deserialize(containerSerialized);
+
           final Throwable throwable = container.getExceptionThrown();
           pendingReq = container.getPendingRequest();