code: @Override
      public void performFileBasedAction(Collection<File> modifiedFiles) {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              Tr.entry(tc, "performFileBasedAction", new Object[] { modifiedFiles });
  
          try {
              com.ibm.ws.ssl.config.KeyStoreManager.getInstance().clearJavaKeyStoresFromKeyStoreMap(modifiedFiles);
              com.ibm.ws.ssl.provider.AbstractJSSEProvider.clearSSLContextCache(modifiedFiles);
              com.ibm.ws.ssl.config.SSLConfigManager.getInstance().resetDefaultSSLContextIfNeeded(modifiedFiles);
              Tr.audit(tc, "ssl.keystore.modified.CWPKI0811I", modifiedFiles.toArray());
          } catch (Exception e) {
              if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled()) {
                  Tr.debug(tc, "Exception while trying to reload keystore file, exception is: " + e.getMessage());
              }
          }
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              Tr.exit(tc, "performFileBasedAction");
      }
docs: The specified files have been modified and we need to clear the SSLContext caches and
  keystore caches. This will cause the new keystore file to get loaded on the next use of the
  ssl context. If the keystore associated with the SSLContext that the process is using then
  the process SSLContext needs to be reloaded.