improved build diagnostics

.github/workflows/release.yml

@@ -256,6 +256,14 @@ jobs:
           asset_name: nb5
           asset_content_type: application/octet-stream
 
+      - name: Archive Test Results
+        if: always()
+        uses: actions/upload-artifact@v3
+        with:
+          name: test-results
+          path: |
+            [a-zA-Z]**/logs/*
+
   javadocs:
     needs: release
     runs-on: ubuntu-20.04
@@ -279,6 +287,7 @@ jobs:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           branch: main
 
+
 #  docs:
 #    needs: release
 #    runs-on: ubuntu-20.04

engine-core/src/main/java/io/nosqlbench/engine/core/lifecycle/ScenarioErrorHandler.java

@@ -45,13 +45,29 @@ public class ScenarioErrorHandler {
     private final static Logger logger = LogManager.getLogger("ERRORHANDLER");
 
     public static String handle(Throwable t, boolean wantsStackTraces) {
+        if (wantsStackTraces) {
+            StackTraceElement[] st = Thread.currentThread().getStackTrace();
+
+            for (int i = 0; i < 10; i++) {
+                if (st.length>i) {
+                    String className = st[i].getClassName();
+                    String fileName = st[i].getFileName();
+                    int lineNumber = st[i].getLineNumber();
+                    logger.trace("st["+i+"]:" + className +","+fileName+":"+lineNumber);
+                }
+            }
+        }
         if (t instanceof ScriptException) {
+            logger.trace("Handling script exception: " + t);
             return handleScriptException((ScriptException) t, wantsStackTraces);
         } else if (t instanceof BasicError) {
+            logger.trace("Handling basic error: " + t);
             return handleBasicError((BasicError) t, wantsStackTraces);
         } else if (t instanceof Exception){
+            logger.trace("Handling general exception: " + t);
             return handleInternalError((Exception) t, wantsStackTraces);
         } else {
+          logger.error("Unknown type for error handler: " + t);
           throw new RuntimeException("Error in exception handler", t);
         }
     }