Fix exception not logged or rethrown

Eclipse sonarlint does not check for exception dropping by default,
it must be configured. This commit addresses exception dropping in
apex.

Change-Id: I406838990b3424c2912124b25d7326502cacc96c
Issue-ID: POLICY-1034
Signed-off-by: liamfallon <liam.fallon@ericsson.com>

2 files changed, 5 insertions, 2 deletions

diff --git a/core/core-engine/src/main/java/org/onap/policy/apex/core/engine/event/EnField.java b/core/core-engine/src/main/java/org/onap/policy/apex/core/engine/event/EnField.java
index a7ce251bd..15fbacf45 100644
--- a/core/core-engine/src/main/java/org/onap/policy/apex/core/engine/event/EnField.java
+++ b/core/core-engine/src/main/java/org/onap/policy/apex/core/engine/event/EnField.java
@@ -147,6 +147,9 @@ public class EnField implements Serializable {
             schemaHelper.unmarshal(value);
             return true;
         } catch (final Exception e) {
+            if (LOGGER.isTraceEnabled()) {
+                LOGGER.trace("value {} is not assignable to this field", value, e);
+            }
             return false;
         }
     }
diff --git a/core/core-infrastructure/src/main/java/org/onap/policy/apex/core/infrastructure/xml/XPathReader.java b/core/core-infrastructure/src/main/java/org/onap/policy/apex/core/infrastructure/xml/XPathReader.java
index bd2474339..08046c924 100644
--- a/core/core-infrastructure/src/main/java/org/onap/policy/apex/core/infrastructure/xml/XPathReader.java
+++ b/core/core-infrastructure/src/main/java/org/onap/policy/apex/core/infrastructure/xml/XPathReader.java
@@ -92,7 +92,7 @@ public class XPathReader {
             xpath = XPathFactory.newInstance().newXPath();
             LOGGER.info("Initialized XPath reader");
         } catch (final Exception ex) {
-            LOGGER.error("Error parsing XML file/stream from XPath reading, reason :\n" + ex.getMessage());
+            LOGGER.error("Error parsing XML file/stream from XPath reading, reason :\n" + ex.getMessage(), ex);
         }
     }
 
@@ -108,7 +108,7 @@ public class XPathReader {
             final XPathExpression xPathExpression = xpath.compile(expression);
             return xPathExpression.evaluate(xmlDocument, returnType);
         } catch (final XPathExpressionException ex) {
-            LOGGER.error("Failed to read XML file for XPath processing, reason:\n" + ex.getMessage());
+            LOGGER.error("Failed to read XML file for XPath processing, reason:\n" + ex.getMessage(), ex);
             return null;
         }
     }