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https://issues.apache.org/jira/browse/BEAM-8100?focusedWorklogId=307972&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-307972
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ASF GitHub Bot logged work on BEAM-8100:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 06/Sep/19 15:54
            Start Date: 06/Sep/19 15:54
    Worklog Time Spent: 10m 
      Work Description: aromanenko-dev commented on pull request #9499: 
[BEAM-8100] Exception handling for AsJsons and ParseJsons
URL: https://github.com/apache/beam/pull/9499#discussion_r321801038
 
 

 ##########
 File path: 
sdks/java/extensions/jackson/src/main/java/org/apache/beam/sdk/extensions/jackson/AsJsons.java
 ##########
 @@ -56,6 +63,35 @@ private AsJsons(Class<? extends InputT> outputClass) {
     return newTransform;
   }
 
+  /**
+   * Returns a new {@link AsJsonsWithFailures} transform that catches 
exceptions raised while
+   * writing JSON elements, passing the raised exception instance and the 
input element being
+   * processed through the given {@code exceptionHandler} and emitting the 
result to a failure
+   * collection.
+   *
+   * <p>Example usage:
+   *
+   * <pre>{@code
+   * WithFailures.Result<PCollection<String>, KV<MyPojo, Map<String, String>>> 
result =
+   *     pojos.apply(
+   *         AsJsons.of(MyPojo.class)
+   *             .withFailures(new 
WithFailures.ExceptionAsMapHandler<MyPojo>() {}));
+   *
+   * PCollection<String> output = result.output(); // valid json elements
+   * PCollection<KV<MyPojo, Map<String, String>>> failures = result.failures();
+   * }</pre>
+   */
+  @Experimental(Experimental.Kind.WITH_EXCEPTIONS)
+  public <FailureT> AsJsonsWithFailures<FailureT> withFailures(
 
 Review comment:
   Agree to use the same API names for all transforms. Perhaps, it would make 
sense to add an interface for that?
   
   Also, do we need to have separate method `exceptionsInto` only for lambdas?
   
   And finally, yes, I also was thinking to have default exception handler. So, 
I think it  will be a good idea to add this, thanks.
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 307972)
    Time Spent: 1.5h  (was: 1h 20m)

> Add exception handling to Json transforms in Java SDK
> -----------------------------------------------------
>
>                 Key: BEAM-8100
>                 URL: https://issues.apache.org/jira/browse/BEAM-8100
>             Project: Beam
>          Issue Type: Improvement
>          Components: extensions-java-json, sdk-java-core
>            Reporter: Jeff Klukas
>            Assignee: Alexey Romanenko
>            Priority: Minor
>          Time Spent: 1.5h
>  Remaining Estimate: 0h
>
> Follow-up to https://issues.apache.org/jira/browse/BEAM-5638. We have 
> exception handling for MapElements and FlatMapElements. It should be 
> straightforward to add parallel signatures to AsJsons and ParseJsons for 
> catching parsing errors.



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