difin commented on code in PR #5995:
URL: https://github.com/apache/hive/pull/5995#discussion_r2283346943


##########
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergMetaHook.java:
##########
@@ -923,15 +938,16 @@ private static PartitionSpec spec(Configuration 
configuration, Schema schema,
             InputFormatConfig.PARTITION_SPEC + " or already converted to a 
partition transform ");
 
     PartitionSpec spec = IcebergTableUtil.spec(configuration, schema);
+    Map<String, String> hmsParameters = 
Optional.ofNullable(hmsTable.getParameters()).orElseGet(Maps::newHashMap);
     if (spec != null) {
-      
Preconditions.checkArgument(hmsTable.getParameters().get(InputFormatConfig.PARTITION_SPEC)
 == null,
+      
Preconditions.checkArgument(hmsParameters.get(InputFormatConfig.PARTITION_SPEC) 
== null,
           "Provide only one of the following: Hive partition transform 
specification, or the " +
               InputFormatConfig.PARTITION_SPEC + " property");
       return spec;
     }
 
-    if (hmsTable.getParameters().get(InputFormatConfig.PARTITION_SPEC) != 
null) {
-      return PartitionSpecParser.fromJson(schema, 
hmsTable.getParameters().get(InputFormatConfig.PARTITION_SPEC));
+    if (hmsParameters.get(InputFormatConfig.PARTITION_SPEC) != null) {

Review Comment:
   Done.



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