diff --git a/algo/src/main/java/org/neo4j/graphalgo/impl/pagerank/EigenvectorCentralityComputeStep.java b/algo/src/main/java/org/neo4j/graphalgo/impl/pagerank/EigenvectorCentralityComputeStep.java
index a981546cf..92ea6ddc0 100644
--- a/algo/src/main/java/org/neo4j/graphalgo/impl/pagerank/EigenvectorCentralityComputeStep.java
+++ b/algo/src/main/java/org/neo4j/graphalgo/impl/pagerank/EigenvectorCentralityComputeStep.java
@@ -99,12 +99,4 @@ void normalizeDeltas() {
             deltas[i] = deltas[i] / l2Norm;
         }
     }
-
-    @Override
-    public String toString() {
-        return "EigenvectorCentralityComputeStep{" +
-                "partitionSize=" + partitionSize +
-                ", startNode=" + startNode +
-                '}';
-    }
 }
diff --git a/algo/src/main/java/org/neo4j/graphalgo/impl/pagerank/PageRank.java b/algo/src/main/java/org/neo4j/graphalgo/impl/pagerank/PageRank.java
index 079965da9..4eba4d967 100644
--- a/algo/src/main/java/org/neo4j/graphalgo/impl/pagerank/PageRank.java
+++ b/algo/src/main/java/org/neo4j/graphalgo/impl/pagerank/PageRank.java
@@ -352,7 +352,7 @@ CentralityResult getPageRank() {
         private void run(int iterations) {
             // initialize data structures
             ParallelUtil.runWithConcurrency(concurrency, steps, pool);
-            for (int i = 0; i < iterations && running(); i++) {
+            for (int iteration = 0; iteration < iterations && running(); iteration++) {
                 // calculate scores
                 ParallelUtil.runWithConcurrency(concurrency, steps, 3, 1, TimeUnit.SECONDS, pool);
 
@@ -382,7 +382,8 @@ private double computeNorm() {
             }
 
             l2Norm = Math.sqrt(l2Norm);
-            l2Norm = l2Norm < 0 ? 1: l2Norm;
+
+            l2Norm = l2Norm <= 0 ? 1 : l2Norm;
             return l2Norm;
         }
 
diff --git a/core/src/main/java/org/neo4j/graphalgo/core/utils/ParallelUtil.java b/core/src/main/java/org/neo4j/graphalgo/core/utils/ParallelUtil.java
index 96911aed5..4d36ad6fe 100644
--- a/core/src/main/java/org/neo4j/graphalgo/core/utils/ParallelUtil.java
+++ b/core/src/main/java/org/neo4j/graphalgo/core/utils/ParallelUtil.java
@@ -671,7 +671,6 @@ private static void runWithConcurrency(
             int maxWaitRetries,
             TerminationFlag terminationFlag,
             ExecutorService executor) {
-
         if (!canRunInParallel(executor)
                 || tasks.size() == 1
                 || concurrency <= 1) {
@@ -705,9 +704,7 @@ private static void runWithConcurrency(
             while (ts.hasNext()) {
                 if (completionService.hasTasks()) {
                     try {
-                        System.out.println("[ParallelUtil#runWithConcurrency] waiting for task to finish... " + executor);
                         completionService.awaitNext();
-                        System.out.println("[ParallelUtil#runWithConcurrency] task finished... " + executor);
                     } catch (ExecutionException e) {
                         error = Exceptions.chain(error, e.getCause());
                     } catch (CancellationException ignore) {
@@ -884,7 +881,6 @@ protected void done() {
             if (executor instanceof ThreadPoolExecutor) {
                 pool = (ThreadPoolExecutor) executor;
                 availableConcurrency = pool.getCorePoolSize();
-//                availableConcurrency = 2;
                 int capacity = Math.max(targetConcurrency, availableConcurrency) + 1;
                 completionQueue = new ArrayBlockingQueue<>(capacity);
             } else {