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From "Fabian Hueske (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (FLINK-6173) flink-table not pack-in com.fasterxml.jackson.* in after #FLINK-5414
Date Wed, 18 Oct 2017 08:42:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-6173?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Fabian Hueske reassigned FLINK-6173:
------------------------------------

    Assignee: Fabian Hueske  (was: Timo Walther)

> flink-table not pack-in com.fasterxml.jackson.* in after #FLINK-5414
> --------------------------------------------------------------------
>
>                 Key: FLINK-6173
>                 URL: https://issues.apache.org/jira/browse/FLINK-6173
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API & SQL
>            Reporter: Zhenghua Gao
>            Assignee: Fabian Hueske
>            Priority: Blocker
>             Fix For: 1.4.0
>
>
> Currently, flink-table will pack-in com.fasterxml.jackson.* and rename them to org.apache.flink.shaded.calcite.com.fasterxml.jackson.*
> If a project depends on flink-table, and uses fasterxml as follows(function explain uses
fasterxml indirectly):
> {code:title=WordCount.scala|borderStyle=solid}
> object WordCountWithTable {
>   def main(args: Array[String]): Unit = {
>     // set up execution environment
>     val env = ExecutionEnvironment.getExecutionEnvironment
>     val tEnv = TableEnvironment.getTableEnvironment(env)
>     val input = env.fromElements(WC("hello", 1), WC("hello", 1), WC("ciao", 1))
>     val expr = input.toTable(tEnv)
>     val result = expr
>       .groupBy('word)
>       .select('word, 'frequency.sum as 'frequency)
>       .filter('frequency === 2)
>     println(tEnv.explain(result))
>     result.toDataSet[WC].print()
>   }
>   case class WC(word: String, frequency: Long)
> }
> {code}
> It actually uses org.apache.flink.shaded.calcite.com.fasterxml.jackson.*
> I found after FLINK-5414,  flink-table didn't pack-in com.fasterxml.jackson.* and the
project would throw class not found exception.
> {code:borderStyle=solid}
> Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/flink/shaded/calcite/com/fasterxml/jackson/databind/ObjectMapper
> 	at org.apache.flink.table.explain.PlanJsonParser.getSqlExecutionPlan(PlanJsonParser.java:32)
> 	at org.apache.flink.table.api.BatchTableEnvironment.explain(BatchTableEnvironment.scala:143)
> 	at org.apache.flink.table.api.BatchTableEnvironment.explain(BatchTableEnvironment.scala:164)
> 	at org.apache.flink.quickstart.WordCountWithTable$.main(WordCountWithTable.scala:34)
> 	at org.apache.flink.quickstart.WordCountWithTable.main(WordCountWithTable.scala)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:498)
> 	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
> Caused by: java.lang.ClassNotFoundException: org.apache.flink.shaded.calcite.com.fasterxml.jackson.databind.ObjectMapper
> 	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> 	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> 	... 10 more
> {code}



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