Github user heytitle commented on a diff in the pull request: https://github.com/apache/flink/pull/3511#discussion_r115130267 --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/operators/sort/NormalizedKeySorter.java --- @@ -47,61 +47,61 @@ public static final int MAX_NORMALIZED_KEY_LEN_PER_ELEMENT = 8; - private static final int MIN_REQUIRED_BUFFERS = 3; + public static final int MIN_REQUIRED_BUFFERS = 3; - private static final int LARGE_RECORD_THRESHOLD = 10 * 1024 * 1024; + public static final int LARGE_RECORD_THRESHOLD = 10 * 1024 * 1024; - private static final long LARGE_RECORD_TAG = 1L << 63; + public static final long LARGE_RECORD_TAG = 1L << 63; - private static final long POINTER_MASK = LARGE_RECORD_TAG - 1; + public static final long POINTER_MASK = LARGE_RECORD_TAG - 1; --- End diff -- The reason `public` is used here because `Janino` first check accessibility of these variables and it seems not able to access them when `protected` is used and it throws the error below. ``` org.codehaus.commons.compiler.CompileException: Field "LARGE_RECORD_THRESHOLD" is not accessible at org.codehaus.janino.ReflectionIClass$ReflectionIField.getConstantValue(ReflectionIClass.java:340) at org.codehaus.janino.UnitCompiler.getConstantValue2(UnitCompiler.java:4433) at org.codehaus.janino.UnitCompiler.access$10000(UnitCompiler.java:182) at org.codehaus.janino.UnitCompiler$11.visitFieldAccess(UnitCompiler.java:4407) at org.codehaus.janino.Java$FieldAccess.accept(Java.java:3229) ```
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