diff --git a/src/main/org/apache/tools/ant/taskdefs/Expand.java b/src/main/org/apache/tools/ant/taskdefs/Expand.java
index cb0c958d5..0ec233308 100644
--- a/src/main/org/apache/tools/ant/taskdefs/Expand.java
+++ b/src/main/org/apache/tools/ant/taskdefs/Expand.java
@@ -191,7 +191,7 @@ public class Expand extends Task {
                 log("extracting " + ze.getName(), Project.MSG_DEBUG);
                 try {
                     extractFile(fileUtils, srcF, dir,
-                                is = zf.getInputStream(ze),
+                                is = zf.getInputStream(ze), //NOSONAR
                                 ze.getName(), new Date(ze.getTime()),
                                 ze.isDirectory(), mapper);
                 } finally {
diff --git a/src/main/org/apache/tools/ant/taskdefs/optional/NetRexxC.java b/src/main/org/apache/tools/ant/taskdefs/optional/NetRexxC.java
index 5ba2a760e..21440f1e6 100644
--- a/src/main/org/apache/tools/ant/taskdefs/optional/NetRexxC.java
+++ b/src/main/org/apache/tools/ant/taskdefs/optional/NetRexxC.java
@@ -868,7 +868,7 @@ public class NetRexxC extends MatchingTask {
             PrintWriter w = null;
             int rc =
                 COM.ibm.netrexx.process.NetRexxC.main(new Rexx(compileArgs),
-                                                      w = new PrintWriter(out));
+                                                      w = new PrintWriter(out)); //NOSONAR
             String sdir = srcDir.getAbsolutePath();
             String ddir = destDir.getAbsolutePath();
             boolean doReplace = !(sdir.equals(ddir));
diff --git a/src/main/org/apache/tools/bzip2/BlockSort.java b/src/main/org/apache/tools/bzip2/BlockSort.java
index eb9066ee9..78ea15e31 100644
--- a/src/main/org/apache/tools/bzip2/BlockSort.java
+++ b/src/main/org/apache/tools/bzip2/BlockSort.java
@@ -642,7 +642,7 @@ class BlockSort {
                     HAMMER: while (true) {
                         if (onceRunned) {
                             fmap[j] = a;
-                            if ((j -= h) <= mj) {
+                            if ((j -= h) <= mj) { //NOSONAR
                                 break HAMMER;
                             }
                         } else {
@@ -660,7 +660,7 @@ class BlockSort {
                                 if (block[i1 + 3] == block[i2 + 3]) {
                                     if (block[i1 + 4] == block[i2 + 4]) {
                                         if (block[i1 + 5] == block[i2 + 5]) {
-                                            if (block[(i1 += 6)] == block[(i2 += 6)]) {
+                                            if (block[(i1 += 6)] == block[(i2 += 6)]) { //NOSONAR
                                                 int x = lastShadow;
                                                 X: while (x > 0) {
                                                     x -= 4;
@@ -673,10 +673,10 @@ class BlockSort {
                                                                         if (quadrant[i1 + 2] == quadrant[i2 + 2]) {
                                                                             if (block[i1 + 4] == block[i2 + 4]) {
                                                                                 if (quadrant[i1 + 3] == quadrant[i2 + 3]) {
-                                                                                    if ((i1 += 4) >= lastPlus1) {
+                                                                                    if ((i1 += 4) >= lastPlus1) { //NOSONAR
                                                                                         i1 -= lastPlus1;
                                                                                     }
-                                                                                    if ((i2 += 4) >= lastPlus1) {
+                                                                                    if ((i2 += 4) >= lastPlus1) { //NOSONAR
                                                                                         i2 -= lastPlus1;
                                                                                     }
                                                                                     workDoneShadow++;