[CAMEL-19381] Infinite loop creating processes with Camel JBang

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.20.4, 3.20.5
• Fix Version/s: 3.20.6, 3.21.0, 4.0-RC1, 4.0.0
• Component/s: camel-jbang
• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: Aurélien Pupier
• Created: 23/May/23 09:44
• Updated: 09/Jun/23 13:57
• Resolved: 09/Jun/23 13:57

Description

I used the command:

jbang camel@apache/camel run 'src/main/java/org/acme/timer/log/TimerRoute.java'

the file is coming from https://github.com/apache/camel-quarkus-examples/blob/ed3523e9c8d3343922eba3a34f6b248d90493782/timer-log/src/main/java/org/acme/timer/log/TimerRoute.java

there is this log repeating indefinitely:

Running integration with the following configuration:
    --camel-version=3.20.4

it creates a new CamelJBang on each time it writes the previous log block:

jps | grep CamelJBang
532586 CamelJBang
532743 CamelJBang
532666 CamelJBang

The main thread dump on them is:

Name: main
State: WAITING on java.lang.ProcessImpl@e90900f
Total blocked: 0  Total waited: 1

Stack trace: 
java.base@17.0.3/java.lang.Object.wait(Native Method)
java.base@17.0.3/java.lang.Object.wait(Object.java:338)
java.base@17.0.3/java.lang.ProcessImpl.waitFor(ProcessImpl.java:434)
app//org.apache.camel.dsl.jbang.core.commands.Run.runCamelVersion(Run.java:637)
app//org.apache.camel.dsl.jbang.core.commands.Run.run(Run.java:566)
app//org.apache.camel.dsl.jbang.core.commands.Run.doCall(Run.java:227)
app//org.apache.camel.dsl.jbang.core.commands.CamelCommand.call(CamelCommand.java:70)
app//org.apache.camel.dsl.jbang.core.commands.CamelCommand.call(CamelCommand.java:35)
app//picocli.CommandLine.executeUserObject(CommandLine.java:2041)
app//picocli.CommandLine.access$1500(CommandLine.java:148)
app//picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2461)
app//picocli.CommandLine$RunLast.handle(CommandLine.java:2453)
app//picocli.CommandLine$RunLast.handle(CommandLine.java:2415)
app//picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2273)
app//picocli.CommandLine$RunLast.execute(CommandLine.java:2417)
app//picocli.CommandLine.execute(CommandLine.java:2170)
app//org.apache.camel.dsl.jbang.core.commands.CamelJBangMain.run(CamelJBangMain.java:154)
app//main.CamelJBang.main(CamelJBang.java:36)