Policy Executor: handle errors, part 2

(fighting between IntelliJ and Checkstyle best practices)

- non-2xx responses are processed using web client exceptions
- handle unknown host exception
- upgraded spotbugs (checkstyle and related mvn plugin)
- fixed some small spotbugs due to upgrade
- added commented instructions in docker compose to enable debugging
- added some environment variables for policy executor configuration
- extract out Sleeper in stub service to achieve 100% coverage
- added cause to Policy Executor exceptions where applicable
- ignored (new) spotbug rule about catch NPE because of issue in 3pp
- ignored (new) spotbug rule about \n in string due to multiline string block

Issue-ID: CPS-2412
Change-Id: I6835a73320c436cbeea12cc7a06f15899eec7bf1
Signed-off-by: ToineSiebelink <toine.siebelink@est.tech>

1 files changed, 2 insertions, 0 deletions

diff --git a/cps-service/src/main/java/org/onap/cps/utils/YangParserHelper.java b/cps-service/src/main/java/org/onap/cps/utils/YangParserHelper.java
index 597164598a..232ea74c8e 100644
--- a/cps-service/src/main/java/org/onap/cps/utils/YangParserHelper.java
+++ b/cps-service/src/main/java/org/onap/cps/utils/YangParserHelper.java
@@ -22,6 +22,7 @@ package org.onap.cps.utils;
 
 import com.google.gson.JsonSyntaxException;
 import com.google.gson.stream.JsonReader;
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import java.io.IOException;
 import java.io.StringReader;
 import java.net.URISyntaxException;
@@ -127,6 +128,7 @@ public class YangParserHelper {
         return dataContainerNodeBuilder.build();
     }
 
+    @SuppressFBWarnings(value = "DCN_NULLPOINTER_EXCEPTION", justification = "Problem originates in 3PP code")
     private ContainerNode parseXmlData(final String xmlData,
                                        final SchemaContext schemaContext,
                                        final String parentNodeXpath) {