diff --git a/junixsocket-common/src/test/java/org/newsclub/net/unix/SocketTestBase.java b/junixsocket-common/src/test/java/org/newsclub/net/unix/SocketTestBase.java
index 78bfe5f2b..683a21514 100644
--- a/junixsocket-common/src/test/java/org/newsclub/net/unix/SocketTestBase.java
+++ b/junixsocket-common/src/test/java/org/newsclub/net/unix/SocketTestBase.java
@@ -315,6 +315,7 @@ protected void acceptAndHandleConnection() throws IOException {
     }
 
     @Override
+    @SuppressWarnings("PMD.AvoidInstanceofChecksInCatchClause")
     public final void run() {
       try {
         loop.set(true);
diff --git a/junixsocket-ssl/src/main/java/org/newsclub/net/unix/ssl/SSLContextBuilder.java b/junixsocket-ssl/src/main/java/org/newsclub/net/unix/ssl/SSLContextBuilder.java
index 930987fc1..931944d91 100644
--- a/junixsocket-ssl/src/main/java/org/newsclub/net/unix/ssl/SSLContextBuilder.java
+++ b/junixsocket-ssl/src/main/java/org/newsclub/net/unix/ssl/SSLContextBuilder.java
@@ -404,7 +404,7 @@ public static IOException wrapIOExceptionIfJDKBug(IOException e) {
     } else if (msg.contains("HmacPBESHA256")) {
       if ("IBM J9 VM".equals(System.getProperty("java.vm.name"))) {
         String vmVersion = System.getProperty("java.runtime.version", "");
-        if (vmVersion.startsWith("8.0.") && vmVersion.compareTo("8.0.8.") < 0) {
+        if (vmVersion.startsWith("8.0.") && vmVersion.compareTo("8.0.8.") < 0) { // NOPMD
           return new KnownJavaBugIOException(
               "Bug JDK-8267701 detected -- please upgrade your Java release to at least IBM SDK 8.0.8.0; "
                   + "details here: https://www.ibm.com/support/pages/troubleshooting-unable-open-pkcs12-keystores-due-unrecoverablekeyexception",