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https://issues.apache.org/jira/browse/GEODE-1842?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Barbara Pruijn updated GEODE-1842:
----------------------------------
    Labels: StackOverflowError gfsh json newbie  (was: StackOverflowError gfsh 
json)

> Execution of query from GFSH or Pulse may kill a Server with 
> StackOverflowError
> -------------------------------------------------------------------------------
>
>                 Key: GEODE-1842
>                 URL: https://issues.apache.org/jira/browse/GEODE-1842
>             Project: Geode
>          Issue Type: Bug
>          Components: gfsh, pulse
>            Reporter: Kirk Lund
>            Priority: Critical
>              Labels: StackOverflowError, gfsh, json, newbie
>
> TypedJson is prone to StackOverflowErrors which results in SystemFailure 
> shutdown of any Geode server that hits this problem. Below is the latest 
> error stack reported against TypedJson:
> {noformat}
> java.lang.StackOverflowError
> at java.lang.Class.getEnclosingMethodInfo(Class.java:1072)
> at java.lang.Class.getEnclosingClass(Class.java:1272)
> at java.lang.Class.getSimpleBinaryName(Class.java:1443)
> at java.lang.Class.getSimpleName(Class.java:1309)
> at java.lang.Class.getCanonicalName(Class.java:1399)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.internalToExternal(TypedJson.java:626)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.writeType(TypedJson.java:610)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.writeKeyValue(TypedJson.java:345)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.visitSpecialObjects(TypedJson.java:517)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.writeKeyValue(TypedJson.java:353)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.visitChildrens(TypedJson.java:670)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.addVal(TypedJson.java:323)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.writeVal(TypedJson.java:314)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.writeKeyValue(TypedJson.java:357)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.visitChildrens(TypedJson.java:670)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.addVal(TypedJson.java:323)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.writeVal(TypedJson.java:314)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.writeKeyValue(TypedJson.java:357)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.visitSpecialObjects(TypedJson.java:517)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.writeKeyValue(TypedJson.java:353)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.visitChildrens(TypedJson.java:670)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.addVal(TypedJson.java:323)
> at 
> com.gemstone.gemfire.management.internal.cli.json.TypedJson.writeVal(TypedJson.java:314)
> {noformat}
> QueryDataFunction uses TypedJson to serialize query results into JSON to 
> return to GFSH or Pulse. Rather than maintain a broken custom JSON parser, we 
> should replace TypedJson with Jackson.
> This example will go into infinite recursion until it produces a 
> StackOverflowError:
> {noformat}
> public class Root {
>   public Root getRoot() {
>     return this;
>   }
>   public Child getChild() { // getter that returns unique instances
>     return new Child();
>   }
> }
> public class Child {
>   public Child getChild() {
>     return this;
>   }
> }
> {noformat}
> This example will go into an infinite loop until it produces OutOfMemoryError:
> {noformat}
> public class Replicator {
>   public Replicator getReplicator() { // getter that returns unique instances
>     return new Replicator();
>   }
> }
> {noformat}



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