Issue #547 Decreased allowable minimum connectionTimeout and validationTimeout to 250ms.

src/main/java/com/zaxxer/hikari/HikariConfig.java

@@ -236,8 +236,8 @@ public class HikariConfig implements HikariConfigMXBean
       if (connectionTimeoutMs == 0) {
          this.connectionTimeout = Integer.MAX_VALUE;
       }
-      else if (connectionTimeoutMs < 1000) {
+      else if (connectionTimeoutMs < 250) {
-         throw new IllegalArgumentException("connectionTimeout cannot be less than 1000ms");
+         throw new IllegalArgumentException("connectionTimeout cannot be less than 250ms");
       }
       else {
          this.connectionTimeout = connectionTimeoutMs;
@@ -259,8 +259,8 @@ public class HikariConfig implements HikariConfigMXBean
    @Override
    public void setValidationTimeout(long validationTimeoutMs)
    {
-      if (validationTimeoutMs < 1000) {
+      if (validationTimeoutMs < 250) {
-         throw new IllegalArgumentException("validationTimeout cannot be less than 1000ms");
+         throw new IllegalArgumentException("validationTimeout cannot be less than 250ms");
       }
       else {
          this.validationTimeout = validationTimeoutMs;

src/test/java/com/zaxxer/hikari/pool/TestValidation.java

@@ -23,7 +23,6 @@ import org.junit.Assert;
 import org.junit.Test;
 
 import com.zaxxer.hikari.HikariConfig;
-import com.zaxxer.hikari.mocks.StubDataSource;
 
 /**
  * @author Brett Wooldridge
@@ -115,7 +114,7 @@ public class TestValidation
          Assert.fail();
       }
       catch (IllegalArgumentException ise) {
-         Assert.assertTrue(ise.getMessage().contains("connectionTimeout cannot be less than 1000ms"));
+         Assert.assertTrue(ise.getMessage().contains("connectionTimeout cannot be less than 250ms"));
       }
    }