add null checks for parameters

Author: PhilippSalvisberg

sqldev/src/main/java/org/utplsql/sqldev/dal/RealtimeReporterDao.java

@@ -110,17 +110,17 @@ public void produceReportWithCoverage(final String realtimeReporterId, final Str
         sb.append("      a_paths            => ut_varchar2_list(\n");
         sb.append(StringTools.getCSV(pathList, 31));
         sb.append("                            ),\n");
-        if (!schemaList.isEmpty()) {
+        if (schemaList != null && !schemaList.isEmpty()) {
             sb.append("      a_coverage_schemes => ut_varchar2_list(\n");
             sb.append(StringTools.getCSV(schemaList, 31));
             sb.append("                            ),\n");
         }
-        if (!includeObjectList.isEmpty()) {
+        if (includeObjectList != null && !includeObjectList.isEmpty()) {
             sb.append("     a_include_objects   => ut_varchar2_list(\n");
             sb.append(StringTools.getCSV(includeObjectList, 31));
             sb.append("                            ),\n");
         }
-        if (!excludeObjectList.isEmpty()) {
+        if (excludeObjectList != null && !excludeObjectList.isEmpty()) {
             sb.append("     a_exclude_objects   => ut_varchar2_list(\n");
             sb.append(StringTools.getCSV(excludeObjectList, 31));
             sb.append("                            ),\n");

sqldev/src/main/java/org/utplsql/sqldev/dal/UtplsqlDao.java

@@ -918,17 +918,17 @@ public String htmlCodeCoverage(final List<String> pathList, final List<String> s
         sb.append("             a_paths => ut_varchar2_list(\n");
         sb.append(StringTools.getCSV(pathList, 16));
         sb.append("             ),\n");
-        if (!schemaList.isEmpty()) {
+        if (schemaList != null && !schemaList.isEmpty()) {
             sb.append("             a_coverage_schemes => ut_varchar2_list(\n");
             sb.append(StringTools.getCSV(schemaList, 16));
             sb.append("             ),\n");
         }
-        if (!includeObjectList.isEmpty()) {
+        if (includeObjectList != null && !includeObjectList.isEmpty()) {
             sb.append("             a_include_objects => ut_varchar2_list(\n");
             sb.append(StringTools.getCSV(includeObjectList, 16));
             sb.append("             ),\n");
         }
-        if (!excludeObjectList.isEmpty()) {
+        if (excludeObjectList != null && excludeObjectList.isEmpty()) {
             sb.append("             a_exclude_objects => ut_varchar2_list(\n");
             sb.append(StringTools.getCSV(excludeObjectList, 16));
             sb.append("             ),\n");