github-actions[bot] commented on code in PR #65733:
URL: https://github.com/apache/doris/pull/65733#discussion_r3600173894


##########
fe/be-java-extensions/hive-udf-shade/pom.xml:
##########
@@ -0,0 +1,114 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0";
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
+    <parent>
+        <artifactId>be-java-extensions</artifactId>
+        <groupId>org.apache.doris</groupId>
+        <version>${revision}</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>hive-udf-shade</artifactId>
+    <packaging>jar</packaging>
+    <name>Doris BE Java Extensions - Hive UDF Contract Shade</name>
+    <description>
+        Minimal shaded jar carrying ONLY the Hive UDF contract classes
+        (org.apache.hadoop.hive.ql.exec.UDF plus its load-time closure) that a
+        user Hive UDF extends. Replaces the ~122MB shaded Hive catalog fat jar
+        that java-udf previously bundled just to provide this handful of 
classes.
+    </description>
+
+    <dependencies>
+        <!--
+          Source of the UDF contract classes. Marked optional so java-udf, 
which
+          depends on this shaded module, does NOT transitively re-pull the full
+          hive-exec:core jar: the ~handful of classes it needs are already 
baked
+          into hive-udf-shade.jar by the shade filter below. The wildcard
+          exclusion prunes hive-exec's heavy transitive tree (calcite/orc/...)
+          from resolution entirely, since we bundle nothing but hive-exec 
itself.
+        -->
+        <dependency>
+            <groupId>org.apache.hive</groupId>
+            <artifactId>hive-exec</artifactId>
+            <classifier>core</classifier>
+            <version>${hive.version}</version>
+            <optional>true</optional>
+            <exclusions>
+                <exclusion>
+                    <groupId>*</groupId>
+                    <artifactId>*</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <finalName>hive-udf-shade</finalName>
+        <directory>${project.basedir}/target/</directory>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.2.4</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    
<createDependencyReducedPom>false</createDependencyReducedPom>
+                    <!-- Bundle only hive-exec; the project itself has no 
sources. -->
+                    <artifactSet>
+                        <includes>
+                            <include>org.apache.hive:hive-exec</include>
+                        </includes>
+                    </artifactSet>
+                    <!--
+                      Keep ONLY the Hive UDF contract + its load-time closure:
+                        - ql/exec/UDF*                  UDF base class, 
UDFMethodResolver,
+                                                        UDFArgument*Exception, 
UDFClassLoader
+                        - ql/exec/DefaultUDFMethodResolver  instantiated by 
the UDF ctor
+                        - ql/exec/Description           the @Description 
annotation
+                        - ql/metadata/HiveException*    declared by some user 
UDFs
+                      FunctionRegistry is referenced only inside the 
never-called
+                      DefaultUDFMethodResolver.getEvalMethod(), so it is 
intentionally
+                      excluded. Everything else in hive-exec is dropped.
+                    -->
+                    <filters>
+                        <filter>
+                            <artifact>org.apache.hive:hive-exec</artifact>
+                            <includes>
+                                
<include>org/apache/hadoop/hive/ql/exec/UDF*.class</include>
+                                
<include>org/apache/hadoop/hive/ql/exec/DefaultUDFMethodResolver*.class</include>
+                                
<include>org/apache/hadoop/hive/ql/exec/Description*.class</include>
+                                
<include>org/apache/hadoop/hive/ql/metadata/HiveException*.class</include>

Review Comment:
   [P1] Keep the retained Hive API classes runtime-linkable. In Hive 3.1.3 
every `HiveException` constructor executes `canonicalErrorMsg = 
ErrorMsg.GENERIC_ERROR`, but this filter keeps `HiveException*.class` and drops 
`org/apache/hadoop/hive/ql/ErrorMsg`. The repository's 
`AssertUDF.evaluate(false, ...)` constructs that exception from a jar whose 
Hive dependencies are `provided`, so a new BE now gets `NoClassDefFoundError` 
instead of executing the UDF's exception path; the existing regression only 
calls `assert(true, ...)`. The retained `UDFArgumentException` is similarly 
unusable because its superclass `SemanticException` is filtered out and Doris's 
`Class.getMethods()` scan resolves it for a UDF that declares that exception. 
Please retain and validate the executable closure of every promised contract 
class, and exercise these negative/reflection paths against the final assembled 
`java-udf` jar.



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