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https://issues.apache.org/jira/browse/NETBEANS-3580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16997115#comment-16997115
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Netbeans User 2019 edited comment on NETBEANS-3580 at 3/6/20, 10:03 AM:
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It maybe somehow connected also to issue NETBEANS-3598

New: NETBEANS-3598 is modified just about static imports and that seems fixed 
in Apache Netbeans 11.3.


was (Author: nb-user-2019):
It maybe somehow connected also to issue NETBEANS-3598

> Expression Lambdas cannot be debugged
> -------------------------------------
>
>                 Key: NETBEANS-3580
>                 URL: https://issues.apache.org/jira/browse/NETBEANS-3580
>             Project: NetBeans
>          Issue Type: Bug
>          Components: debugger - Java
>    Affects Versions: 11.2, 11.3
>            Reporter: Jan Lahoda
>            Assignee: Akshay Gupta
>            Priority: Critical
>              Labels: debug, lambda
>
> Consider this source code:
> {{package org.netbeans.modules.learning.lambda.code.completion;}}
> {{import java.util.Arrays;}}
> {{public class NewClass {}}
> {{    public static void main(String... args) {}}
>  {{        Arrays.stream(new String[] \{"a", "", "b"})}}
>  {{              .filter(s -> !s.isEmpty()) //breakpoint here}}
>  {{              .forEach(System.err::println);}}
>  \{{    }}}
>  {{}}}
>  
> Add a breakpoint at the marked line, and run the code under the debugger. The 
> debugger will stop on the breakpoint for the "filter" method invocation (OK), 
> but it will not stop there for the lambda invocation (bad). So with a code 
> like this, one does not see the lambda parameters, cannot step inside, etc. 
> Workaround is to place the expression on a new line:
> {\{ .filter(s -> }}
>  \{{ !s.isEmpty()) //breakpoint here}}
> But that requires a change to the code just for debugging - and that defies 
> the purpose of debugging (which is to inspect the code *without* changes).
> The IDE is a fully updated Apache NetBeans 11.2, with nb-javac installed 
> running on JDK 13:
> Product Version: Apache NetBeans IDE 11.2
> Java: 13.0.1; OpenJDK 64-Bit Server VM 13.0.1+9
> Runtime: OpenJDK Runtime Environment 13.0.1+9
> System: Linux version 4.15.0-72-generic running on amd64; UTF-8; en_US (nb)
> User directory: /tmp/nbuser.lambda.test
> Cache directory: /tmp/nbuser.lambda.test/var/cache



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