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>
diff --git a/cps-ri/pom.xml b/cps-ri/pom.xml
index 57e6528..edbdb62 100644
--- a/cps-ri/pom.xml
+++ b/cps-ri/pom.xml
@@ -68,6 +68,11 @@
             <artifactId>postgresql</artifactId>

             <version>${postgres.version}</version>

         </dependency>

+        <!-- Disable SpotBug Rules -->

+        <dependency>

+            <groupId>com.github.spotbugs</groupId>

+            <artifactId>spotbugs-annotations</artifactId>

+        </dependency>

         <!-- Add Hibernate support for Postgres datatype JSONB and Postgres arrays -->

         <dependency>

             <groupId>io.hypersistence</groupId>

diff --git a/cps-ri/src/main/java/org/onap/cps/ri/repository/ModuleReferenceRepositoryImpl.java b/cps-ri/src/main/java/org/onap/cps/ri/repository/ModuleReferenceRepositoryImpl.java
index c160fb1..281a33d 100644
--- a/cps-ri/src/main/java/org/onap/cps/ri/repository/ModuleReferenceRepositoryImpl.java
+++ b/cps-ri/src/main/java/org/onap/cps/ri/repository/ModuleReferenceRepositoryImpl.java
@@ -20,6 +20,7 @@
 
 package org.onap.cps.ri.repository;
 
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import jakarta.persistence.EntityManager;
 import jakarta.persistence.PersistenceContext;
 import jakarta.persistence.Query;
@@ -118,6 +119,7 @@
         query.setParameter(4, dataspaceName);
     }
 
+    @SuppressFBWarnings(value = "VA_FORMAT_STRING_USES_NEWLINE", justification = "no \n in string just in file format")
     private String buildModuleReferencesSqlQuery(final String parentFragmentClause, final String childFragmentClause) {
         return """
                 WITH Fragment AS (