Log stack traces with logger

Fixed critical sonar issues:
-"Either log or rethrow this exception"

Change-Id: I99a550f2cf40bd6c34a0f8ca1893c964669c76de
Issue-ID: MUSIC-367
Signed-off-by: Robert Bogacki <r.bogacki@samsung.com>

10 files changed, 112 insertions, 53 deletions

diff --git a/src/main/java/org/onap/music/authentication/MusicAAFAuthentication.java b/src/main/java/org/onap/music/authentication/MusicAAFAuthentication.java
index 2d0d4e59..0fd6c0e2 100644
--- a/src/main/java/org/onap/music/authentication/MusicAAFAuthentication.java
+++ b/src/main/java/org/onap/music/authentication/MusicAAFAuthentication.java
@@ -4,6 +4,8 @@
  * ===================================================================
  *  Copyright (c) 2017 AT&T Intellectual Property
  * ===================================================================
+ * Modifications Copyright (c) 2019 Samsung
+ * ===================================================================
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
  *  You may obtain a copy of the License at
@@ -134,7 +136,7 @@ public class MusicAAFAuthentication implements MusicAuthenticator {
                      isValid = CachingUtil.authenticateAAFUser(namespace, userId, password, keyspace);
                 } catch (Exception e) {
                     logger.error(EELFLoggerDelegate.errorLogger,"Error while aaf authentication for user:" + userId);
-                    logger.error(EELFLoggerDelegate.errorLogger,"Error: "+ e.getMessage());
+                    logger.error(EELFLoggerDelegate.errorLogger,"Error: "+ e.getMessage(), e);
                     logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.AUTHENTICATIONERROR  ,ErrorSeverity.WARN, ErrorTypes.AUTHENTICATIONERROR);
                     logger.error(EELFLoggerDelegate.errorLogger,"Got exception while AAF authentication for namespace " + namespace);
                     resultMap.put("Exception", e.getMessage());
@@ -170,7 +172,7 @@ public class MusicAAFAuthentication implements MusicAuthenticator {
                 uuid = rs.getUUID("uuid").toString();
                 resultMap.put("uuid", "existing");
             } catch (Exception e) {
-                logger.error(EELFLoggerDelegate.applicationLogger,"No UUID found in DB. So creating new UUID.");
+                logger.error(EELFLoggerDelegate.applicationLogger,"No UUID found in DB. So creating new UUID.", e);
                 uuid = MusicUtil.generateUUID();
                 resultMap.put("uuid", "new");
             }
diff --git a/src/main/java/org/onap/music/conductor/conditionals/MusicConditional.java b/src/main/java/org/onap/music/conductor/conditionals/MusicConditional.java
index 045abd98..69ccd104 100644
--- a/src/main/java/org/onap/music/conductor/conditionals/MusicConditional.java
+++ b/src/main/java/org/onap/music/conductor/conditionals/MusicConditional.java
@@ -3,7 +3,9 @@
  * org.onap.music
  * ===================================================================
  *  Copyright (c) 2017 AT&T Intellectual Property
+ * ===================================================================
  *  Modifications Copyright (C) 2019 IBM.
+ *  Modifications Copyright (c) 2019 Samsung
  * ===================================================================
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
@@ -112,6 +114,7 @@ public class MusicConditional {
                 return lockAcqResult;
             }
         } catch (Exception e) {
+            logger.error(EELFLoggerDelegate.applicationLogger, e);
             MusicCore.destroyLockRef(lockId);
             return new ReturnType(ResultType.FAILURE, e.getMessage());
         }
@@ -130,6 +133,7 @@ public class MusicConditional {
                 try {
                     results = MusicDataStoreHandle.getDSHandle().executeQuorumConsistencyGet(queryBank.get(MusicUtil.SELECT));
                 } catch (Exception e) {
+                    logger.error(EELFLoggerDelegate.applicationLogger, e);
                     return new ReturnType(ResultType.FAILURE, e.getMessage());
                 }
                 if (results.all().isEmpty()) {
@@ -148,6 +152,7 @@ public class MusicConditional {
             StringWriter sw = new StringWriter();
             e.printStackTrace(new PrintWriter(sw));
             String exceptionAsString = sw.toString();
+            logger.error(EELFLoggerDelegate.applicationLogger, e);
             return new ReturnType(ResultType.FAILURE,
                     "Exception thrown while doing the critical put, check sanctity of the row/conditions:\n"
                             + exceptionAsString);
@@ -175,6 +180,7 @@ public class MusicConditional {
 
         } catch (Exception e) {
             MusicCore.destroyLockRef(lockId);
+            logger.error(EELFLoggerDelegate.applicationLogger, e);
             return new ReturnType(ResultType.FAILURE, e.getMessage());
 
         }
@@ -202,6 +208,7 @@ public class MusicConditional {
                     try {
                         MusicDataStoreHandle.getDSHandle().executePut(update, "critical");
                     } catch (Exception ex) {
+                        logger.error(EELFLoggerDelegate.applicationLogger, ex);
                         return new ReturnType(ResultType.FAILURE, ex.getMessage());
                     }
                 }else {
@@ -219,6 +226,7 @@ public class MusicConditional {
             StringWriter sw = new StringWriter();
             e.printStackTrace(new PrintWriter(sw));
             String exceptionAsString = sw.toString();
+            logger.error(EELFLoggerDelegate.applicationLogger, e);
             return new ReturnType(ResultType.FAILURE,
                     "Exception thrown while doing the critical put, check sanctity of the row/conditions:\n"
                             + exceptionAsString);
@@ -275,7 +283,8 @@ public class MusicConditional {
             try {
                 colType = tableInfo.getColumn(entry.getKey()).getType();
             } catch(NullPointerException ex) {
-                logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage() +" Invalid column name : "+entry.getKey(), AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.DATAERROR);
+                logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage() +" Invalid column name : "+entry.getKey
+                    (), AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.DATAERROR, ex);
                
             }
 
@@ -283,7 +292,7 @@ public class MusicConditional {
             try {
               formattedValue = MusicUtil.convertToActualDataType(colType, valueObj);
             } catch (Exception e) {
-              logger.error(EELFLoggerDelegate.errorLogger,e.getMessage());
+              logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), e);
           }
             
             valueString.append("?");
diff --git a/src/main/java/org/onap/music/datastore/MusicDataStore.java b/src/main/java/org/onap/music/datastore/MusicDataStore.java
index f58bd831..1260efa0 100755
--- a/src/main/java/org/onap/music/datastore/MusicDataStore.java
+++ b/src/main/java/org/onap/music/datastore/MusicDataStore.java
@@ -5,6 +5,7 @@
  *  Copyright (c) 2017 AT&T Intellectual Property
  * ===================================================================
  *  Modifications Copyright (c) 2018-2019 IBM
+ *  Modifications Copyright (c) 2019 Samsung
  * ===================================================================
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
@@ -127,7 +128,7 @@ public class MusicDataStore {
         try {
             connectToCassaCluster(remoteIp);
         } catch (MusicServiceException e) {
-            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage());
+            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(), e);
         }
     }
 
@@ -148,9 +149,11 @@ public class MusicDataStore {
                 }
             }
         } catch (SocketException e) {
-            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(), AppMessages.CONNCECTIVITYERROR, ErrorSeverity.ERROR, ErrorTypes.CONNECTIONERROR);
+            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(), AppMessages.CONNCECTIVITYERROR,
+                ErrorSeverity.ERROR, ErrorTypes.CONNECTIONERROR, e);
         }catch(Exception e) {
-            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(), ErrorSeverity.ERROR, ErrorTypes.GENERALSERVICEERROR);
+            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(), ErrorSeverity.ERROR, ErrorTypes
+                .GENERALSERVICEERROR, e);
         }
         return allPossibleIps;
     }
@@ -198,7 +201,8 @@ public class MusicDataStore {
                 break;
             } catch (NoHostAvailableException e) {
                 address = it.next();
-                logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.HOSTUNAVAILABLE, ErrorSeverity.ERROR, ErrorTypes.CONNECTIONERROR);
+                logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.HOSTUNAVAILABLE,
+                    ErrorSeverity.ERROR, ErrorTypes.CONNECTIONERROR, e);
             }
         }
     }
@@ -253,7 +257,8 @@ public class MusicDataStore {
         try {
             session = cluster.connect();
         } catch (Exception ex) {
-            logger.error(EELFLoggerDelegate.errorLogger, ex.getMessage(),AppMessages.CASSANDRACONNECTIVITY, ErrorSeverity.ERROR, ErrorTypes.SERVICEUNAVAILABLE);
+            logger.error(EELFLoggerDelegate.errorLogger, ex.getMessage(),AppMessages.CASSANDRACONNECTIVITY,
+                ErrorSeverity.ERROR, ErrorTypes.SERVICEUNAVAILABLE, ex);
             throw new MusicServiceException(
                             "Error while connecting to Cassandra cluster.. " + ex.getMessage());
         }
@@ -446,11 +451,13 @@ public class MusicDataStore {
 
         }
         catch (AlreadyExistsException ae) {
-            logger.error(EELFLoggerDelegate.errorLogger, ae.getMessage(),AppMessages.SESSIONFAILED+ " [" + queryObject.getQuery() + "]", ErrorSeverity.ERROR, ErrorTypes.QUERYERROR);
+            logger.error(EELFLoggerDelegate.errorLogger, ae.getMessage(),AppMessages.SESSIONFAILED+ " [" +
+                queryObject.getQuery() + "]", ErrorSeverity.ERROR, ErrorTypes.QUERYERROR, ae);
             throw new MusicServiceException(ae.getMessage());
         }
         catch (Exception e) {
-            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.SESSIONFAILED+ " [" + queryObject.getQuery() + "]", ErrorSeverity.ERROR, ErrorTypes.QUERYERROR);
+            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.SESSIONFAILED+ " [" +
+                queryObject.getQuery() + "]", ErrorSeverity.ERROR, ErrorTypes.QUERYERROR, e);
             throw new MusicQueryException("Executing Session Failure for Request = " + "["
                             + queryObject.getQuery() + "]" + " Reason = " + e.getMessage());
         }
@@ -560,7 +567,8 @@ public class MusicDataStore {
             results = session.execute(statement);
 
         } catch (Exception ex) {
-            logger.error(EELFLoggerDelegate.errorLogger, ex.getMessage(),AppMessages.UNKNOWNERROR+ "[" + queryObject.getQuery() + "]", ErrorSeverity.ERROR, ErrorTypes.QUERYERROR);
+            logger.error(EELFLoggerDelegate.errorLogger, ex.getMessage(),AppMessages.UNKNOWNERROR+ "[" + queryObject
+                .getQuery() + "]", ErrorSeverity.ERROR, ErrorTypes.QUERYERROR, ex);
             throw new MusicServiceException(ex.getMessage());
         }
         
diff --git a/src/main/java/org/onap/music/lockingservice/cassandra/MusicLockState.java b/src/main/java/org/onap/music/lockingservice/cassandra/MusicLockState.java
index 5128e2cd..8f3c0d6d 100644
--- a/src/main/java/org/onap/music/lockingservice/cassandra/MusicLockState.java
+++ b/src/main/java/org/onap/music/lockingservice/cassandra/MusicLockState.java
@@ -4,6 +4,8 @@
  * ===================================================================
  *  Copyright (c) 2017 AT&T Intellectual Property
  * ===================================================================
+ *  Modifications Copyright (c) 2019 Samsung
+ * ===================================================================
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
  *  You may obtain a copy of the License at
@@ -118,7 +120,8 @@ public class MusicLockState implements Serializable {
             out = new ObjectOutputStream(bos);
             out.writeObject(this);
         } catch (IOException e) {
-            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.IOERROR, ErrorSeverity.ERROR, ErrorTypes.CONNECTIONERROR);
+            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.IOERROR, ErrorSeverity.ERROR,
+                ErrorTypes.CONNECTIONERROR, e);
         }
         return bos.toByteArray();
     }
@@ -131,7 +134,8 @@ public class MusicLockState implements Serializable {
             in = new ObjectInputStream(bis);
             o = in.readObject();
         } catch (ClassNotFoundException | IOException e) {
-            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.UNKNOWNERROR, ErrorSeverity.ERROR, ErrorTypes.UNKNOWN);
+            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.UNKNOWNERROR, ErrorSeverity
+                .ERROR, ErrorTypes.UNKNOWN, e);
         }
         return (MusicLockState) o;
     }
diff --git a/src/main/java/org/onap/music/main/MusicUtil.java b/src/main/java/org/onap/music/main/MusicUtil.java
index b737377d..07612aa0 100755
--- a/src/main/java/org/onap/music/main/MusicUtil.java
+++ b/src/main/java/org/onap/music/main/MusicUtil.java
@@ -478,7 +478,7 @@ public class MusicUtil {
                                                     // line
             fileScanner.close();
         } catch (FileNotFoundException e) {
-            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage());
+            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(), e);
         }
         return testType;
 
@@ -492,7 +492,7 @@ public class MusicUtil {
         try {
             Thread.sleep(time);
         } catch (InterruptedException e) {
-            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage());
+            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(), e);
             Thread.currentThread().interrupt();
         }
     }
@@ -702,7 +702,7 @@ public class MusicUtil {
             input = MusicUtil.class.getClassLoader().getResourceAsStream("music.properties");
             prop.load(input);
         } catch (Exception ex) {
-            logger.error(EELFLoggerDelegate.errorLogger, "Unable to find properties file.");
+            logger.error(EELFLoggerDelegate.errorLogger, "Unable to find properties file.", ex);
             throw new Exception();
         } finally {
             if (input != null) {
@@ -710,6 +710,7 @@ public class MusicUtil {
                     input.close();
                 } catch (IOException e) {
                     e.printStackTrace();
+                    logger.error(EELFLoggerDelegate.errorLogger, e);
                 }
             }
         }
@@ -824,7 +825,7 @@ public class MusicUtil {
             MusicDataStoreHandle.getDSHandle().executePut(updateQuery, "critical");
         } catch (MusicServiceException | MusicQueryException e) {
             logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.QUERYERROR +""+updateQuery ,
-                ErrorSeverity.MAJOR, ErrorTypes.QUERYERROR);
+                ErrorSeverity.MAJOR, ErrorTypes.QUERYERROR, e);
         }
     }
     
diff --git a/src/main/java/org/onap/music/rest/RestMusicAdminAPI.java b/src/main/java/org/onap/music/rest/RestMusicAdminAPI.java
index adcb6584..fddeebff 100755
--- a/src/main/java/org/onap/music/rest/RestMusicAdminAPI.java
+++ b/src/main/java/org/onap/music/rest/RestMusicAdminAPI.java
@@ -5,6 +5,7 @@
  *  Copyright (c) 2017 AT&T Intellectual Property
  * ===================================================================
  * Modifications Copyright (C) 2018 IBM.
+ * Modifications Copyright (c) 2019 Samsung
  * ================================================================================
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
@@ -489,6 +490,7 @@ public class RestMusicAdminAPI {
         try {
          result = MusicCore.nonKeyRelatedPut(queryObject, "eventual");
         }catch(Exception ex) {
+            logger.error(EELFLoggerDelegate.errorLogger, ex);
             return false;
         }
         return true;
diff --git a/src/main/java/org/onap/music/rest/RestMusicDataAPI.java b/src/main/java/org/onap/music/rest/RestMusicDataAPI.java
index dfcf0bdb..8500298b 100755
--- a/src/main/java/org/onap/music/rest/RestMusicDataAPI.java
+++ b/src/main/java/org/onap/music/rest/RestMusicDataAPI.java
@@ -202,7 +202,8 @@ public class RestMusicDataAPI {
             try {
                 repString = "{" + MusicUtil.jsonMaptoSqlString(replicationInfo, ",") + "}";
             } catch (Exception e) {
-                logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.MISSINGDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.DATAERROR);
+                logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.MISSINGDATA  ,ErrorSeverity
+                    .CRITICAL, ErrorTypes.DATAERROR, e);
     
             }
             queryObject.appendQueryString(
@@ -222,7 +223,8 @@ public class RestMusicDataAPI {
                 result = MusicCore.nonKeyRelatedPut(queryObject, consistency);
                 logger.info(EELFLoggerDelegate.applicationLogger, "result = " + result);
             } catch ( MusicServiceException ex) {
-                logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage(), AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes.MUSICSERVICEERROR);
+                logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage(), AppMessages.UNKNOWNERROR  ,ErrorSeverity
+                    .WARN, ErrorTypes.MUSICSERVICEERROR, ex);
                 return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError("err:" + ex.getMessage()).toMap()).build();
             }
     
@@ -237,7 +239,8 @@ public class RestMusicDataAPI {
                 queryObject.appendQueryString(";");
                 MusicCore.nonKeyRelatedPut(queryObject, consistency);
             } catch (Exception e) {
-                logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.UNKNOWNERROR,ErrorSeverity.WARN, ErrorTypes.MUSICSERVICEERROR);
+                logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.UNKNOWNERROR,ErrorSeverity
+                    .WARN, ErrorTypes.MUSICSERVICEERROR, e);
             }
     
             try {
@@ -258,7 +261,8 @@ public class RestMusicDataAPI {
                 CachingUtil.updateMusicValidateCache(ns, userId, hashedpwd);
                 MusicCore.eventualPut(queryObject);
             } catch (Exception e) {
-                logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.UNKNOWNERROR,ErrorSeverity.WARN, ErrorTypes.MUSICSERVICEERROR);
+                logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.UNKNOWNERROR,ErrorSeverity
+                    .WARN, ErrorTypes.MUSICSERVICEERROR, e);
                 return response.status(Response.Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError(e.getMessage()).toMap()).build();
             }
     
@@ -576,7 +580,8 @@ public class RestMusicDataAPI {
         try {
             result = MusicCore.createTable(keyspace, tablename, queryObject, consistency);
         } catch (MusicServiceException ex) {
-            logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage(), AppMessages.UNKNOWNERROR  ,ErrorSeverity.CRITICAL, ErrorTypes.MUSICSERVICEERROR);
+            logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage(), AppMessages.UNKNOWNERROR  ,ErrorSeverity
+                .CRITICAL, ErrorTypes.MUSICSERVICEERROR, ex);
             response.status(Status.BAD_REQUEST);
             return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError(ex.getMessage()).toMap()).build();
         }
@@ -639,7 +644,8 @@ public class RestMusicDataAPI {
         try {
             result = MusicCore.nonKeyRelatedPut(query, "eventual");
         } catch (MusicServiceException ex) {
-            logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage(), AppMessages.UNKNOWNERROR  ,ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
+            logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage(), AppMessages.UNKNOWNERROR  ,ErrorSeverity
+                .CRITICAL, ErrorTypes.GENERALSERVICEERROR, ex);
             response.status(Status.BAD_REQUEST);
             return response.entity(new JsonResponse(ResultType.FAILURE).setError(ex.getMessage()).toMap()).build();
         }
@@ -725,7 +731,8 @@ public class RestMusicDataAPI {
             try {
                 colType = tableInfo.getColumn(entry.getKey()).getType();
             } catch(NullPointerException ex) {
-                logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage() +" Invalid column name : "+entry.getKey(), AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.DATAERROR);
+                logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage() +" Invalid column name : "+entry.getKey
+                    (), AppMessages.INCORRECTDATA  ,ErrorSeverity.CRITICAL, ErrorTypes.DATAERROR, ex);
                 return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError("Invalid column name : "+entry.getKey()).toMap()).build();
             }
 
@@ -845,7 +852,8 @@ public class RestMusicDataAPI {
 
             }
         } catch (Exception ex) {
-            logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage(), AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes.MUSICSERVICEERROR);
+            logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage(), AppMessages.UNKNOWNERROR  ,ErrorSeverity
+                .WARN, ErrorTypes.MUSICSERVICEERROR, ex);
             return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError(ex.getMessage()).toMap()).build();
         }
 
@@ -925,7 +933,8 @@ public class RestMusicDataAPI {
         try {
             tableInfo = MusicDataStoreHandle.returnColumnMetadata(keyspace, tablename);
         } catch (MusicServiceException e) {
-            logger.error(EELFLoggerDelegate.errorLogger,e, AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes.GENERALSERVICEERROR);
+            logger.error(EELFLoggerDelegate.errorLogger,e, AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes
+                .GENERALSERVICEERROR, e);
               return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError(e.getMessage()).toMap()).build();
         }
         if (tableInfo == null) {
@@ -945,7 +954,7 @@ public class RestMusicDataAPI {
             try {
                 colType = tableInfo.getColumn(entry.getKey()).getType();
             } catch(NullPointerException ex) {
-                logger.error(EELFLoggerDelegate.errorLogger, ex, "Invalid column name : "+entry.getKey());
+                logger.error(EELFLoggerDelegate.errorLogger, ex, "Invalid column name : "+entry.getKey(), ex);
                 return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError("Invalid column name : "+entry.getKey()).toMap()).build();
             }
             Object valueString = null;
@@ -992,7 +1001,8 @@ public class RestMusicDataAPI {
                         .setError("Mandatory WHERE clause is missing. Please check the input request.").toMap()).build();
             }
         } catch (MusicServiceException ex) {
-            logger.error(EELFLoggerDelegate.errorLogger,ex, AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes.GENERALSERVICEERROR);
+            logger.error(EELFLoggerDelegate.errorLogger,ex, AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes
+                .GENERALSERVICEERROR, ex);
               return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError(ex.getMessage()).toMap()).build();
         }
 
@@ -1040,7 +1050,8 @@ public class RestMusicDataAPI {
               operationResult = MusicCore.atomicPutWithDeleteLock(keyspace, tablename,
                               rowId.primarKeyValue, queryObject, conditionInfo);
             } catch (MusicLockingException e) {
-                logger.error(EELFLoggerDelegate.errorLogger,e, AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes.GENERALSERVICEERROR);
+                logger.error(EELFLoggerDelegate.errorLogger,e, AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN,
+                    ErrorTypes.GENERALSERVICEERROR, e);
                   return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError(e.getMessage()).toMap()).build();
             }
         } else if (consistency.equalsIgnoreCase(MusicUtil.ATOMIC)) {
@@ -1048,7 +1059,8 @@ public class RestMusicDataAPI {
               operationResult = MusicCore.atomicPut(keyspace, tablename, rowId.primarKeyValue,
                               queryObject, conditionInfo);
             } catch (MusicLockingException e) {
-                logger.error(EELFLoggerDelegate.errorLogger,e, AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes.GENERALSERVICEERROR);
+                logger.error(EELFLoggerDelegate.errorLogger,e, AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN,
+                    ErrorTypes.GENERALSERVICEERROR, e);
                 return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError(e.getMessage()).toMap()).build();
             }
         }else if(consistency.equalsIgnoreCase(MusicUtil.EVENTUAL_NB)) {
@@ -1155,7 +1167,8 @@ public class RestMusicDataAPI {
         try {
             rowId = getRowIdentifier(keyspace, tablename, info.getQueryParameters(), queryObject);
         } catch (MusicServiceException ex) {
-            logger.error(EELFLoggerDelegate.errorLogger,ex, AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes.GENERALSERVICEERROR);
+            logger.error(EELFLoggerDelegate.errorLogger,ex, AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes
+                .GENERALSERVICEERROR, ex);
               return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError(ex.getMessage()).toMap()).build();
         }
         String rowSpec = rowId.rowIdString.toString();
@@ -1221,7 +1234,8 @@ public class RestMusicDataAPI {
                 operationResult = MusicCore.eventualPut_nb(queryObject, keyspace, tablename, rowId.primarKeyValue);
             }
         } catch (MusicLockingException e) {
-            logger.error(EELFLoggerDelegate.errorLogger,e, AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes.GENERALSERVICEERROR);
+            logger.error(EELFLoggerDelegate.errorLogger,e, AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes
+                .GENERALSERVICEERROR, e);
               return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE)
                     .setError("Unable to perform Delete operation. Exception from music").toMap()).build();
         }
@@ -1288,7 +1302,8 @@ public class RestMusicDataAPI {
         try {
             return response.status(Status.OK).entity(new JsonResponse(MusicCore.nonKeyRelatedPut(query, consistency)).toMap()).build();
         } catch (MusicServiceException ex) {
-            logger.error(EELFLoggerDelegate.errorLogger,ex, AppMessages.MISSINGINFO  ,ErrorSeverity.WARN, ErrorTypes.GENERALSERVICEERROR);
+            logger.error(EELFLoggerDelegate.errorLogger, ex, AppMessages.MISSINGINFO  ,ErrorSeverity.WARN, ErrorTypes
+                .GENERALSERVICEERROR);
             return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError(ex.getMessage()).toMap()).build();
         }
         } finally {
@@ -1349,7 +1364,8 @@ public class RestMusicDataAPI {
         try {
             rowId = getRowIdentifier(keyspace, tablename, info.getQueryParameters(), queryObject);
         } catch (MusicServiceException ex) {
-            logger.error(EELFLoggerDelegate.errorLogger,ex, AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes.GENERALSERVICEERROR);
+            logger.error(EELFLoggerDelegate.errorLogger,ex, AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes
+                .GENERALSERVICEERROR, ex);
               return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError(ex.getMessage()).toMap()).build();
         }
         queryObject.appendQueryString(
@@ -1433,7 +1449,8 @@ public class RestMusicDataAPI {
             try {
                 queryObject = selectSpecificQuery(keyspace, tablename, info, limit);
             } catch (MusicServiceException ex) {
-                logger.error(EELFLoggerDelegate.errorLogger, ex, AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes.GENERALSERVICEERROR);
+                logger.error(EELFLoggerDelegate.errorLogger, ex, AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN,
+                    ErrorTypes.GENERALSERVICEERROR, ex);
                 return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError(ex.getMessage()).toMap()).build();
             }
         }
@@ -1445,7 +1462,8 @@ public class RestMusicDataAPI {
             }
             return response.status(Status.OK).entity(new JsonResponse(ResultType.SUCCESS).setDataResult(MusicDataStoreHandle.marshallResults(results)).setError("No data found").toMap()).build();
         } catch (MusicServiceException ex) {
-            logger.error(EELFLoggerDelegate.errorLogger, ex, AppMessages.UNKNOWNERROR  ,ErrorSeverity.ERROR, ErrorTypes.MUSICSERVICEERROR);
+            logger.error(EELFLoggerDelegate.errorLogger, ex, AppMessages.UNKNOWNERROR  ,ErrorSeverity.ERROR,
+                ErrorTypes.MUSICSERVICEERROR, ex);
             return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError(ex.getMessage()).toMap()).build();
         }
         } finally {
diff --git a/src/main/java/org/onap/music/rest/RestMusicLocksAPI.java b/src/main/java/org/onap/music/rest/RestMusicLocksAPI.java
index 943f4ca8..77c6ef1f 100644
--- a/src/main/java/org/onap/music/rest/RestMusicLocksAPI.java
+++ b/src/main/java/org/onap/music/rest/RestMusicLocksAPI.java
@@ -4,6 +4,8 @@
  * ===================================================================
  *  Copyright (c) 2017 AT&T Intellectual Property
  * ===================================================================
+ *  Modifications Copyright (c) 2019 Samsung
+ * ===================================================================
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
  *  You may obtain a copy of the License at
@@ -175,7 +177,8 @@ public class RestMusicLocksAPI {
             }
             return response.entity(new JsonResponse(lockStatus.getResult()).setLock(lockId).setMessage(lockStatus.getMessage()).toMap()).build();
         } catch (Exception e) {
-            logger.error(EELFLoggerDelegate.errorLogger,AppMessages.INVALIDLOCK + lockId, ErrorSeverity.CRITICAL, ErrorTypes.LOCKINGERROR);
+            logger.error(EELFLoggerDelegate.errorLogger,AppMessages.INVALIDLOCK + lockId, ErrorSeverity.CRITICAL,
+                ErrorTypes.LOCKINGERROR, e);
             return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError("Unable to aquire lock").toMap()).build();
         }
         } finally {
@@ -446,6 +449,7 @@ public class RestMusicLocksAPI {
         try{
             MusicCore.deleteLock(lockName);
         }catch (Exception e) {
+            logger.error(EELFLoggerDelegate.errorLogger, e);
             return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError(e.getMessage()).toMap()).build();
         }
         return response.status(Status.OK).entity(new JsonResponse(ResultType.SUCCESS).toMap()).build();
diff --git a/src/main/java/org/onap/music/rest/RestMusicQAPI.java b/src/main/java/org/onap/music/rest/RestMusicQAPI.java
index 676730e0..f3df9350 100755
--- a/src/main/java/org/onap/music/rest/RestMusicQAPI.java
+++ b/src/main/java/org/onap/music/rest/RestMusicQAPI.java
@@ -3,7 +3,9 @@
  * org.onap.music
  * ===================================================================
  *  Copyright (c) 2017 AT&T Intellectual Property
+ * ===================================================================
  *  Modifications Copyright (C) 2019 IBM.
+ *  Modifications Copyright (c) 2019 Samsung
  * ===================================================================
  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  you may not use this file except in compliance with the License.
@@ -376,7 +378,7 @@ public class RestMusicQAPI {
         queryObject = new RestMusicDataAPI().selectSpecificQuery(keyspace, tablename, info, limit);
       } catch (MusicServiceException ex) {
         logger.error(EELFLoggerDelegate.errorLogger, "", AppMessages.UNKNOWNERROR,
-                ErrorSeverity.WARN, ErrorTypes.GENERALSERVICEERROR);
+                ErrorSeverity.WARN, ErrorTypes.GENERALSERVICEERROR, ex);
         return response.status(Status.BAD_REQUEST)
                 .entity(new JsonResponse(ResultType.FAILURE).setError(ex.getMessage()).toMap())
                 .build();
@@ -389,7 +391,7 @@ public class RestMusicQAPI {
               .setDataResult(MusicDataStoreHandle.marshallResults(results)).toMap()).build();
     } catch (MusicServiceException ex) {
       logger.error(EELFLoggerDelegate.errorLogger, "", AppMessages.UNKNOWNERROR,
-              ErrorSeverity.ERROR, ErrorTypes.MUSICSERVICEERROR);
+              ErrorSeverity.ERROR, ErrorTypes.MUSICSERVICEERROR, ex);
       return response.status(Status.BAD_REQUEST)
               .entity(new JsonResponse(ResultType.FAILURE).setError(ex.getMessage()).toMap())
               .build();
diff --git a/src/main/java/org/onap/music/service/impl/MusicCassaCore.java b/src/main/java/org/onap/music/service/impl/MusicCassaCore.java
index cb6e1ce4..2c10c91a 100644
--- a/src/main/java/org/onap/music/service/impl/MusicCassaCore.java
+++ b/src/main/java/org/onap/music/service/impl/MusicCassaCore.java
@@ -106,6 +106,7 @@ public class MusicCassaCore implements MusicCoreService {
             lockReference = "" + getLockingServiceHandle().genLockRefandEnQueue(keyspace, table, lockName);
         } catch (MusicLockingException | MusicServiceException | MusicQueryException e) {
             e.printStackTrace();
+            logger.error(EELFLoggerDelegate.applicationLogger, e);
         }
         long end = System.currentTimeMillis();
         logger.info(EELFLoggerDelegate.applicationLogger,"Time taken to create lock reference:" + (end - start) + " ms");
@@ -184,7 +185,8 @@ public class MusicCassaCore implements MusicCoreService {
                 syncQuorum(keyspace, table, primaryKeyValue);
             } catch (Exception e) {
                 StringWriter sw = new StringWriter();
-                   logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), "[ERR506E] Failed to aquire lock ",ErrorSeverity.CRITICAL, ErrorTypes.LOCKINGERROR);
+                   logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), "[ERR506E] Failed to aquire lock ",
+                       ErrorSeverity.CRITICAL, ErrorTypes.LOCKINGERROR, e);
                 String exceptionAsString = sw.toString();
                 return new ReturnType(ResultType.FAILURE, "Exception thrown while syncing key:\n" + exceptionAsString);
             }
@@ -236,7 +238,8 @@ public class MusicCassaCore implements MusicCoreService {
                 //create actual table
                 result = MusicDataStoreHandle.getDSHandle().executePut(tableQueryObject, consistency);
             } catch (MusicQueryException | MusicServiceException | MusicLockingException ex) {
-                logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage(), AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes.MUSICSERVICEERROR);
+                logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage(), AppMessages.UNKNOWNERROR  ,ErrorSeverity
+                    .WARN, ErrorTypes.MUSICSERVICEERROR, ex);
                 throw new MusicServiceException(ex.getMessage());
             }
             return result?ResultType.SUCCESS:ResultType.FAILURE;
@@ -274,7 +277,8 @@ public class MusicCassaCore implements MusicCoreService {
         try {
             results = MusicDataStoreHandle.getDSHandle().executeQuorumConsistencyGet(query);
         } catch (MusicServiceException | MusicQueryException e) {
-            logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.UNKNOWNERROR ,ErrorSeverity.MAJOR, ErrorTypes.GENERALSERVICEERROR);
+            logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.UNKNOWNERROR ,ErrorSeverity
+                .MAJOR, ErrorTypes.GENERALSERVICEERROR, e);
 
         }
         return results;
@@ -295,7 +299,8 @@ public class MusicCassaCore implements MusicCoreService {
             return "$" + fullyQualifiedKey + "$"
                     + getLockingServiceHandle().peekLockQueue(keyspace, table, primaryKeyValue).lockRef;
         } catch (MusicLockingException | MusicServiceException | MusicQueryException e) {
-             logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.LOCKINGERROR+fullyQualifiedKey ,ErrorSeverity.CRITICAL, ErrorTypes.LOCKINGERROR);
+             logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.LOCKINGERROR+fullyQualifiedKey
+                 ,ErrorSeverity.CRITICAL, ErrorTypes.LOCKINGERROR, e);
         }
         return null;
     }
@@ -322,7 +327,8 @@ public class MusicCassaCore implements MusicCoreService {
         try {
             getLockingServiceHandle().deQueueLockRef(keyspace, table, primaryKeyValue, lockRef);
         } catch (MusicLockingException | MusicServiceException | MusicQueryException e) {
-            logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.DESTROYLOCK+lockRef  ,ErrorSeverity.CRITICAL, ErrorTypes.LOCKINGERROR);
+            logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.DESTROYLOCK+lockRef  ,
+                ErrorSeverity.CRITICAL, ErrorTypes.LOCKINGERROR, e);
         }
         long end = System.currentTimeMillis();
         logger.info(EELFLoggerDelegate.applicationLogger,"Time taken to destroy lock reference:" + (end - start) + " ms");
@@ -337,7 +343,8 @@ public class MusicCassaCore implements MusicCoreService {
         try {
             getLockingServiceHandle().deQueueLockRef(keyspace, table, primaryKeyValue, lockReference);
         } catch (MusicLockingException | MusicServiceException | MusicQueryException e) {
-            logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.DESTROYLOCK+lockReference  ,ErrorSeverity.CRITICAL, ErrorTypes.LOCKINGERROR);
+            logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.DESTROYLOCK+lockReference  ,
+                ErrorSeverity.CRITICAL, ErrorTypes.LOCKINGERROR, e);
         }
         long end = System.currentTimeMillis();
         logger.info(EELFLoggerDelegate.applicationLogger,"Time taken to destroy lock reference:" + (end - start) + " ms");
@@ -375,7 +382,7 @@ public class MusicCassaCore implements MusicCoreService {
             MusicDataStoreHandle.getDSHandle().executePut(queryObject, "critical");
         } catch (Exception e) {
             logger.error("Cannot forcibly release lock: " + fullyQualifiedKey + " " + lockReference + ". "
-                        + e.getMessage());
+                        + e.getMessage(), e);
         }
 
         //now release the lock
@@ -445,13 +452,13 @@ public class MusicCassaCore implements MusicCoreService {
             }
 
         } catch (MusicServiceException | MusicQueryException e) {
-            logger.error(EELFLoggerDelegate.applicationLogger,e.getMessage());
+            logger.error(EELFLoggerDelegate.applicationLogger,e.getMessage(), e);
         }
         try {
             result = MusicDataStoreHandle.getDSHandle().executePut(queryObject, MusicUtil.EVENTUAL);
         } catch (MusicServiceException | MusicQueryException ex) {
             logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage(), "[ERR512E] Failed to get ZK Lock Handle "  ,ErrorSeverity.WARN, ErrorTypes.MUSICSERVICEERROR);
-            logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage() + "  " + ex.getCause() + " " + ex);
+            logger.error(EELFLoggerDelegate.errorLogger,ex.getMessage() + "  " + ex.getCause(), ex);
             return new ReturnType(ResultType.FAILURE, ex.getMessage());
         }
         if (result) {
@@ -485,6 +492,7 @@ public class MusicCassaCore implements MusicCoreService {
                   return new ReturnType(ResultType.FAILURE,
                                   "Lock acquired but the condition is not true");
             } catch (Exception e) {
+              logger.error(EELFLoggerDelegate.errorLogger, e);
               return new ReturnType(ResultType.FAILURE,
                       "Exception thrown while checking the condition, check its sanctity:\n"
                                       + e.getMessage());
@@ -509,7 +517,7 @@ public class MusicCassaCore implements MusicCoreService {
           long end = System.currentTimeMillis();
           logger.info(EELFLoggerDelegate.applicationLogger,"Time taken for the critical put:" + (end - start) + " ms");
         }catch (MusicQueryException | MusicServiceException | MusicLockingException  e) {
-            logger.error(EELFLoggerDelegate.errorLogger,e.getMessage());
+            logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), e);
             return new ReturnType(ResultType.FAILURE,
                             "Exception thrown while doing the critical put\n"
                                             + e.getMessage());
@@ -535,7 +543,7 @@ public class MusicCassaCore implements MusicCoreService {
             result = MusicDataStoreHandle.getDSHandle().executePut(queryObject, consistency);
         } catch (MusicQueryException | MusicServiceException ex) {
             logger.error(EELFLoggerDelegate.errorLogger, ex.getMessage(), AppMessages.UNKNOWNERROR,
-                    ErrorSeverity.WARN, ErrorTypes.MUSICSERVICEERROR);
+                    ErrorSeverity.WARN, ErrorTypes.MUSICSERVICEERROR, ex);
             throw new MusicServiceException(ex.getMessage());
         }
         return result ? ResultType.SUCCESS : ResultType.FAILURE;
@@ -553,7 +561,7 @@ public class MusicCassaCore implements MusicCoreService {
         try {
             results = MusicDataStoreHandle.getDSHandle().executeOneConsistencyGet(queryObject);
         } catch (MusicQueryException | MusicServiceException e) {
-            logger.error(EELFLoggerDelegate.errorLogger,e.getMessage());
+            logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), e);
             throw new MusicServiceException(e.getMessage());
         }
         return results;
@@ -581,7 +589,8 @@ public class MusicCassaCore implements MusicCoreService {
                     return null;//not top of the lock store q
                 results = MusicDataStoreHandle.getDSHandle().executeQuorumConsistencyGet(queryObject);
         } catch (MusicQueryException | MusicServiceException | MusicLockingException e) {
-                logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes.MUSICSERVICEERROR);
+                logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), AppMessages.UNKNOWNERROR  ,ErrorSeverity
+                    .WARN, ErrorTypes.MUSICSERVICEERROR, e);
         }
         return results;
     }