[jira] [Created] (FLINK-1145) POJO Type extractor bug with type variables

["Stephan Ewen (JIRA)" <ji...@apache.org>]

Stephan Ewen created FLINK-1145:
-----------------------------------

             Summary: POJO Type extractor bug with type variables
                 Key: FLINK-1145
                 URL: https://issues.apache.org/jira/browse/FLINK-1145
             Project: Flink
          Issue Type: Bug
            Reporter: Stephan Ewen


The following program incorrectly states that there are duplicate getters/setters.

{code}
	public static class Vertex<K, V> {
		
		private K key1;
		private K key2;
		private V value;
		
		public Vertex() {}
		
		public Vertex(K key, V value) {
			this.key1 = key;
			this.key2 = key;
			this.value = value;
		}
		
		public Vertex(K key1, K key2, V value) {
			this.key1 = key1;
			this.key2 = key2;
			this.value = value;
		}

		public void setKey1(K key1) {
			this.key1 = key1;
		}
		
		public void setKey2(K key2) {
			this.key2 = key2;
		}
		
		public K getKey1() {
			return key1;
		}
		
		public K getKey2() {
			return key2;
		}
		
		public void setValue(V value) {
			this.value = value;
		}
		
		public V getValue() {
			return value;
		}
	}
	
	public static void main(String[] args) throws Exception {
		ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
		
		DataSet<Vertex<Long, Double>> set = env.fromElements(new Vertex<Long, Double>(0L, 3.0), new Vertex<Long, Double>(1L, 1.0));
		
		set.print();
		
		env.execute();
	}
{code}

The exception is
{code}
Exception in thread "main" java.lang.IllegalStateException: Detected more than one getters
	at org.apache.flink.api.java.typeutils.TypeExtractor.isValidPojoField(TypeExtractor.java:981)
	at org.apache.flink.api.java.typeutils.TypeExtractor.analyzePojo(TypeExtractor.java:1025)
	at org.apache.flink.api.java.typeutils.TypeExtractor.privateGetForClass(TypeExtractor.java:937)
	at org.apache.flink.api.java.typeutils.TypeExtractor.privateGetForClass(TypeExtractor.java:863)
	at org.apache.flink.api.java.typeutils.TypeExtractor.privateGetForObject(TypeExtractor.java:1146)
	at org.apache.flink.api.java.typeutils.TypeExtractor.getForObject(TypeExtractor.java:1116)
	at org.apache.flink.api.java.ExecutionEnvironment.fromElements(ExecutionEnvironment.java:466)
	at test.Test.main(Test.java:74)

{code}



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