#439 - @EnumValue("01") stored as integer rather than string - ENum stores strings as numerics?

src/main/java/com/avaje/ebeaninternal/server/type/DefaultTypeManager.java

@@ -419,8 +419,10 @@ public final class DefaultTypeManager implements TypeManager, KnownImmutable {
     return value;
   }
 
-  @SuppressWarnings("ResultOfMethodCallIgnored")
-  private boolean isIntegerType(String s) {
+  protected boolean isIntegerType(String s) {
+    if (isLeadingZeros(s)) {
+      return false;
+    }
     try {
       Integer.parseInt(s);
       return true;
@@ -429,6 +431,13 @@ public final class DefaultTypeManager implements TypeManager, KnownImmutable {
     }
   }
 
+  /**
+   * Treat leading zeros as a non-integer for enum values.
+   */
+  private boolean isLeadingZeros(String s) {
+    return s.length() > 1 && s.charAt(0) == '0';
+  }
+
   /**
    * Create the Mapping of Enum fields to DB values using EnumValue annotations.
    * <p>

src/test/java/com/avaje/ebeaninternal/server/type/DefaultTypeManagerTest.java

@@ -0,0 +1,35 @@
+package com.avaje.ebeaninternal.server.type;
+
+import com.avaje.ebean.config.ServerConfig;
+import com.avaje.ebean.config.dbplatform.PostgresPlatform;
+import com.avaje.ebeaninternal.server.core.BootupClasses;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class DefaultTypeManagerTest {
+
+  DefaultTypeManager typeManager;
+
+  public DefaultTypeManagerTest() {
+    ServerConfig serverConfig = new ServerConfig();
+    serverConfig.setDatabasePlatform(new PostgresPlatform());
+    BootupClasses bootupClasses = new BootupClasses();
+    typeManager = new DefaultTypeManager(serverConfig, bootupClasses);
+  }
+
+  @Test
+  public void isIntegerType() {
+
+    assertTrue(typeManager.isIntegerType("1"));
+    assertTrue(typeManager.isIntegerType("0"));
+
+    assertFalse(typeManager.isIntegerType("A"));
+    assertFalse(typeManager.isIntegerType("01"));
+    assertFalse(typeManager.isIntegerType(" 01"));
+    assertFalse(typeManager.isIntegerType(" 0"));
+    assertFalse(typeManager.isIntegerType(" 1"));
+    assertFalse(typeManager.isIntegerType(" A"));
+  }
+
+}