[BugFix] Fix the npe of show routine load (backport #50963)

[mergify]

Why I'm doing:

What I'm doing:

2024-09-11 10:29:29.274+08:00 WARN (starrocks-mysql-nio-pool-0|199) [StmtExecutor.execute():749] execute Exception, sql show routine load
 java.lang.NullPointerException
        at com.starrocks.load.routineload.RoutineLoadJob.getShowInfo(RoutineLoadJob.java:1532)
        at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
        at java.base/java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948)
        at java.base/java.util.stream.StreamSpliterators$SliceSpliterator$OfRef.forEachRemaining(StreamSpliterators.java:740)
        at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
        at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
        at java.base/java.util.stream.ReduceOps$ReduceTask.doLeaf(ReduceOps.java:952)
        at java.base/java.util.stream.ReduceOps$ReduceTask.doLeaf(ReduceOps.java:926)
        at java.base/java.util.stream.AbstractTask.compute(AbstractTask.java:327)
        at java.base/java.util.concurrent.CountedCompleter.exec(CountedCompleter.java:746)
        at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
        at java.base/java.util.concurrent.ForkJoinTask.doInvoke(ForkJoinTask.java:408)
        at java.base/java.util.concurrent.ForkJoinTask.invoke(ForkJoinTask.java:736)
        at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateParallel(ReduceOps.java:919)
        at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:233)
        at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578)
        at com.starrocks.qe.ShowExecutor$ShowExecutorVisitor.visitShowRoutineLoadStatement(ShowExecutor.java:1143)
        at com.starrocks.qe.ShowExecutor$ShowExecutorVisitor.visitShowRoutineLoadStatement(ShowExecutor.java:286)
        at com.starrocks.sql.ast.ShowRoutineLoadStmt.accept(ShowRoutineLoadStmt.java:169)
        at com.starrocks.sql.ast.AstVisitor.visit(AstVisitor.java:71)
        at com.starrocks.qe.ShowExecutor.execute(ShowExecutor.java:283)
        at com.starrocks.qe.StmtExecutor.handleShow(StmtExecutor.java:1698)
        at com.starrocks.qe.StmtExecutor.execute(StmtExecutor.java:689)
        at com.starrocks.qe.ConnectProcessor.handleQuery(ConnectProcessor.java:360)
        at com.starrocks.qe.ConnectProcessor.dispatch(ConnectProcessor.java:559)
        at com.starrocks.qe.ConnectProcessor.processOnce(ConnectProcessor.java:894)
        at com.starrocks.mysql.nio.ReadListener.lambda$handleEvent$0(ReadListener.java:69)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

What type of PR is this:

• BugFix
• Feature
• Enhancement
• Refactor
• UT
• Doc
• Tool

Does this PR entail a change in behavior?

• Yes, this PR will result in a change in behavior.
• No, this PR will not result in a change in behavior.

If yes, please specify the type of change:

• Interface/UI changes: syntax, type conversion, expression evaluation, display information
• Parameter changes: default values, similar parameters but with different default values
• Policy changes: use new policy to replace old one, functionality automatically enabled
• Feature removed
• Miscellaneous: upgrade & downgrade compatibility, etc.

Checklist:

• I have added test cases for my bug fix or my new feature
• This pr needs user documentation (for new or modified features or behaviors)
  • I have added documentation for my new feature or new function
• This is a backport pr

Bugfix cherry-pick branch check:

• I have checked the version labels which the pr will be auto-backported to the target branch
  • 3.3
  • 3.2
  • 3.1
  • 3.0
  • 2.5

---

This is an automatic backport of pull request #50963 done by [Mergify](https://mergify.com). ## Why I'm doing:

What I'm doing:

2024-09-11 10:29:29.274+08:00 WARN (starrocks-mysql-nio-pool-0|199) [StmtExecutor.execute():749] execute Exception, sql show routine load
 java.lang.NullPointerException
        at com.starrocks.load.routineload.RoutineLoadJob.getShowInfo(RoutineLoadJob.java:1532)
        at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
        at java.base/java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948)
        at java.base/java.util.stream.StreamSpliterators$SliceSpliterator$OfRef.forEachRemaining(StreamSpliterators.java:740)
        at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
        at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
        at java.base/java.util.stream.ReduceOps$ReduceTask.doLeaf(ReduceOps.java:952)
        at java.base/java.util.stream.ReduceOps$ReduceTask.doLeaf(ReduceOps.java:926)
        at java.base/java.util.stream.AbstractTask.compute(AbstractTask.java:327)
        at java.base/java.util.concurrent.CountedCompleter.exec(CountedCompleter.java:746)
        at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
        at java.base/java.util.concurrent.ForkJoinTask.doInvoke(ForkJoinTask.java:408)
        at java.base/java.util.concurrent.ForkJoinTask.invoke(ForkJoinTask.java:736)
        at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateParallel(ReduceOps.java:919)
        at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:233)
        at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578)
        at com.starrocks.qe.ShowExecutor$ShowExecutorVisitor.visitShowRoutineLoadStatement(ShowExecutor.java:1143)
        at com.starrocks.qe.ShowExecutor$ShowExecutorVisitor.visitShowRoutineLoadStatement(ShowExecutor.java:286)
        at com.starrocks.sql.ast.ShowRoutineLoadStmt.accept(ShowRoutineLoadStmt.java:169)
        at com.starrocks.sql.ast.AstVisitor.visit(AstVisitor.java:71)
        at com.starrocks.qe.ShowExecutor.execute(ShowExecutor.java:283)
        at com.starrocks.qe.StmtExecutor.handleShow(StmtExecutor.java:1698)
        at com.starrocks.qe.StmtExecutor.execute(StmtExecutor.java:689)
        at com.starrocks.qe.ConnectProcessor.handleQuery(ConnectProcessor.java:360)
        at com.starrocks.qe.ConnectProcessor.dispatch(ConnectProcessor.java:559)
        at com.starrocks.qe.ConnectProcessor.processOnce(ConnectProcessor.java:894)
        at com.starrocks.mysql.nio.ReadListener.lambda$handleEvent$0(ReadListener.java:69)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

What type of PR is this:

• BugFix
• Feature
• Enhancement
• Refactor
• UT
• Doc
• Tool

Does this PR entail a change in behavior?

• Yes, this PR will result in a change in behavior.
• No, this PR will not result in a change in behavior.

If yes, please specify the type of change:

• Interface/UI changes: syntax, type conversion, expression evaluation, display information
• Parameter changes: default values, similar parameters but with different default values
• Policy changes: use new policy to replace old one, functionality automatically enabled
• Feature removed
• Miscellaneous: upgrade & downgrade compatibility, etc.

Checklist:

• I have added test cases for my bug fix or my new feature
• This pr needs user documentation (for new or modified features or behaviors)
  • I have added documentation for my new feature or new function
• This is a backport pr

[mergify]

Cherry-pick of 5bc037d has failed:

On branch mergify/bp/branch-3.1/pr-50963
Your branch is up to date with 'origin/branch-3.1'.

You are currently cherry-picking commit 5bc037dadd.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   fe/fe-core/src/main/java/com/starrocks/load/routineload/PulsarRoutineLoadJob.java

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   fe/fe-core/src/main/java/com/starrocks/load/routineload/RoutineLoadJob.java
	both modified:   fe/fe-core/src/test/java/com/starrocks/load/routineload/RoutineLoadJobTest.java

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[mergify]

@mergify[bot]: Backport conflict, please reslove the conflict and resubmit the pr

[sonarcloud]

Quality Gate failed

Failed conditions
B Maintainability Rating on New Code (required ≥ A)

See analysis details on SonarCloud

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