diff --git a/src/main/java/com/zaxxer/hikari/HikariConfig.java b/src/main/java/com/zaxxer/hikari/HikariConfig.java
index 613b4a96a..8e46953b5 100644
--- a/src/main/java/com/zaxxer/hikari/HikariConfig.java
+++ b/src/main/java/com/zaxxer/hikari/HikariConfig.java
@@ -746,7 +746,6 @@ public void setReadOnly(boolean readOnly)
     *
     * @return {@code true} if HikariCP will register MXBeans, {@code false} if it will not
     */
-   @SuppressWarnings("BooleanMethodIsAlwaysInverted")
    public boolean isRegisterMbeans()
    {
       return isRegisterMbeans;
@@ -973,16 +972,6 @@ private void validateNumerics()
          maxLifetime = MAX_LIFETIME;
       }
 
-      if (idleTimeout + SECONDS.toMillis(1) > maxLifetime && maxLifetime > 0 && minIdle < maxPoolSize) {
-         LOGGER.warn("{} - idleTimeout is close to or more than maxLifetime, disabling it.", poolName);
-         idleTimeout = 0;
-      }
-
-      if (idleTimeout != 0 && idleTimeout < SECONDS.toMillis(10)) {
-         LOGGER.warn("{} - idleTimeout is less than 10000ms, setting to default {}ms.", poolName, IDLE_TIMEOUT);
-         idleTimeout = IDLE_TIMEOUT;
-      }
-
       if (leakDetectionThreshold > 0 && !unitTest) {
          if (leakDetectionThreshold < SECONDS.toMillis(2) || (leakDetectionThreshold > maxLifetime && maxLifetime > 0)) {
             LOGGER.warn("{} - leakDetectionThreshold is less than 2000ms or more than maxLifetime, disabling it.", poolName);
@@ -1001,14 +990,22 @@ private void validateNumerics()
       }
 
       if (maxPoolSize < 1) {
-         maxPoolSize = (minIdle <= 0) ? DEFAULT_POOL_SIZE : minIdle;
+         maxPoolSize = DEFAULT_POOL_SIZE;
       }
 
       if (minIdle < 0 || minIdle > maxPoolSize) {
          minIdle = maxPoolSize;
       }
 
-      if (idleTimeout != IDLE_TIMEOUT && idleTimeout != 0 && minIdle == maxPoolSize) {
+      if (idleTimeout + SECONDS.toMillis(1) > maxLifetime && maxLifetime > 0 && minIdle < maxPoolSize) {
+         LOGGER.warn("{} - idleTimeout is close to or more than maxLifetime, disabling it.", poolName);
+         idleTimeout = 0;
+      }
+      else if (idleTimeout != 0 && idleTimeout < SECONDS.toMillis(10) && minIdle < maxPoolSize) {
+         LOGGER.warn("{} - idleTimeout is less than 10000ms, setting to default {}ms.", poolName, IDLE_TIMEOUT);
+         idleTimeout = IDLE_TIMEOUT;
+      }
+      else  if (idleTimeout != IDLE_TIMEOUT && idleTimeout != 0 && minIdle == maxPoolSize) {
          LOGGER.warn("{} - idleTimeout has been set but has no effect because the pool is operating as a fixed size pool.", poolName);
       }
    }
@@ -1018,7 +1015,6 @@ private void checkIfSealed()
       if (sealed) throw new IllegalStateException("The configuration of the pool is sealed once started. Use HikariConfigMXBean for runtime changes.");
    }
 
-   @SuppressWarnings("StatementWithEmptyBody")
    private void logConfiguration()
    {
       LOGGER.debug("{} - configuration:", poolName);