Fixed issues with loading YamlConfigurations with typed keys

By: Nathan Adams <dinnerbone@dinnerbone.com>

paper-api/src/main/java/org/bukkit/configuration/file/YamlConfiguration.java

@@ -4,6 +4,7 @@ import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.HashMap;
 import java.util.LinkedHashMap;
 import java.util.Map;
 import java.util.logging.Level;
@@ -55,11 +56,14 @@ public class YamlConfiguration extends FileConfiguration {
             throw new IllegalArgumentException("Contents cannot be null");
         }
         
-        Map<String, Object> input;
-        try {
-            input = (Map<String, Object>)yaml.load(contents);
-        } catch (Throwable ex) {
-            throw new InvalidConfigurationException("Specified contents is not a valid Configuration", ex);
+        Map<Object, Object> input = (Map<Object, Object>)yaml.load(contents);
+        int size = (input == null) ? 0 : input.size();
+        Map<String, Object> result = new LinkedHashMap<String, Object>(size);
+        
+        if (size > 0) {
+            for (Map.Entry<Object, Object> entry : input.entrySet()) {
+                result.put(entry.getKey().toString(), entry.getValue());
+            }
         }
         
         String header = parseHeader(contents);
@@ -68,7 +72,7 @@ public class YamlConfiguration extends FileConfiguration {
             options().header(header);
         }
         
-        deserializeValues(input, this);
+        deserializeValues(result, this);
     }
     
     protected void deserializeValues(Map<String, Object> input, ConfigurationSection section) throws InvalidConfigurationException {
@@ -80,12 +84,14 @@ public class YamlConfiguration extends FileConfiguration {
             Object value = entry.getValue();
             
             if (value instanceof Map) {
-                Map<String, Object> subvalues;
-                
-                try {
-                    subvalues = (Map<String, Object>) value;
-                } catch (ClassCastException ex) {
-                    throw new InvalidConfigurationException("Map found where type is not <String, Object>", ex);
+                Map<Object, Object> subinput = (Map<Object, Object>)value;
+                int size = (subinput == null) ? 0 : subinput.size();
+                Map<String, Object> subvalues = new LinkedHashMap<String, Object>(size);
+             
+                if (size > 0) {
+                    for (Map.Entry<Object, Object> subentry : subinput.entrySet()) {
+                        subvalues.put(subentry.getKey().toString(), subentry.getValue());
+                    }
                 }
                 
                 if (subvalues.containsKey(ConfigurationSerialization.SERIALIZED_TYPE_KEY)) {

paper-api/src/test/java/org/bukkit/configuration/ConfigurationSectionTest.java

@@ -1,7 +1,6 @@
 package org.bukkit.configuration;
 
 import org.bukkit.Material;
-import java.io.File;
 import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
@@ -22,9 +21,10 @@ public abstract class ConfigurationSectionTest {
         section.set("subsection.subkey2", true);
         section.set("subsection.subsubsection.key", true);
         section.set("key2", true);
+        section.set("42", true);
 
-        assertArrayEquals(new String[] {"key", "subsection", "key2"}, section.getKeys(false).toArray());
-        assertArrayEquals(new String[] {"key", "subsection", "subsection.subkey", "subsection.subkey2", "subsection.subsubsection", "subsection.subsubsection.key", "key2"}, section.getKeys(true).toArray());
+        assertArrayEquals(new String[] {"key", "subsection", "key2", "42"}, section.getKeys(false).toArray());
+        assertArrayEquals(new String[] {"key", "subsection", "subsection.subkey", "subsection.subkey2", "subsection.subsubsection", "subsection.subsubsection.key", "key2", "42"}, section.getKeys(true).toArray());
         assertArrayEquals(new String[] {"subkey", "subkey2", "subsubsection", "subsubsection.key"}, section.getConfigurationSection("subsection").getKeys(true).toArray());
     }
 

paper-api/src/test/java/org/bukkit/configuration/ConfigurationTest.java

@@ -22,6 +22,7 @@ public abstract class ConfigurationTest {
         result.put("false-boolean", false);
         result.put("vector", new Vector(12345.67, 64, -12345.6789));
         result.put("list", Arrays.asList(1, 2, 3, 4, 5));
+        result.put("42", "The Answer");
 
         return result;
     }

paper-api/src/test/java/org/bukkit/configuration/file/YamlConfigurationTest.java

@@ -36,7 +36,8 @@ public  class YamlConfigurationTest extends FileConfigurationTest {
             "- 2\n" + 
             "- 3\n" + 
             "- 4\n" + 
-            "- 5\n";
+            "- 5\n" +
+            "'42': The Answer\n";
     }
 
     @Test