branch-3.1: [fix](nereids) allow merge project for java udf

[yujun777]

What problem does this PR solve?

Issue Number: close #xxx

Related PR: #xxx

Problem Summary:

Release note

None

Check List (For Author)

• Test

  • Regression test
  • Unit Test
  • Manual test (add detailed scripts or steps below)
  • No need to test or manual test. Explain why:
    • This is a refactor/code format and no logic has been changed.
    • Previous test can cover this change.
    • No code files have been changed.
    • Other reason

• Behavior changed:

  • No.
  • Yes.

• Does this need documentation?

  • No.
  • Yes.

Check List (For Reviewer who merge this PR)

• Confirm the release note
• Confirm test cases
• Confirm document
• Add branch pick label

[Thearas]

Thank you for your contribution to Apache Doris.
Don't know what should be done next? See How to process your PR.

Please clearly describe your PR:

1. What problem was fixed (it's best to include specific error reporting information). How it was fixed.
2. Which behaviors were modified. What was the previous behavior, what is it now, why was it modified, and what possible impacts might there be.
3. What features were added. Why was this function added?
4. Which code was refactored and why was this part of the code refactored?
5. Which functions were optimized and what is the difference before and after the optimization?

[yujun777]

run buildall

[doris-robot]

TPC-H: Total hot run time: 34502 ms

machine: 'aliyun_ecs.c7a.8xlarge_32C64G'
scripts: https://github.com/apache/doris/tree/master/tools/tpch-tools
Tpch sf100 test result on commit 03f7c49f6c431d9f27b5cc0ea0758f0cd8c5f16c, data reload: false

------ Round 1 ----------------------------------
q1	17640	5513	5435	5435
q2	2047	445	308	308
q3	12158	1316	822	822
q4	10562	917	537	537
q5	9709	2490	2268	2268
q6	209	171	138	138
q7	970	772	663	663
q8	9383	1567	1372	1372
q9	5445	5048	5099	5048
q10	6847	2332	1856	1856
q11	528	321	300	300
q12	374	386	243	243
q13	17796	3646	3132	3132
q14	251	250	248	248
q15	532	487	490	487
q16	518	480	417	417
q17	734	903	441	441
q18	7263	6802	6625	6625
q19	1244	977	586	586
q20	379	396	254	254
q21	3360	2450	2290	2290
q22	1143	1115	1032	1032
Total cold run time: 109092 ms
Total hot run time: 34502 ms

----- Round 2, with runtime_filter_mode=off -----
q1	5565	5553	5535	5535
q2	254	347	248	248
q3	2317	2698	2393	2393
q4	1466	1841	1474	1474
q5	4730	5185	5087	5087
q6	180	174	132	132
q7	2150	2052	1895	1895
q8	2700	2955	2755	2755
q9	7451	7403	7336	7336
q10	3012	3356	2890	2890
q11	616	553	519	519
q12	741	811	676	676
q13	3562	3893	3361	3361
q14	320	318	296	296
q15	529	479	479	479
q16	487	522	489	489
q17	1280	1795	1300	1300
q18	7961	7629	7698	7629
q19	954	1217	1100	1100
q20	2127	2117	1965	1965
q21	5828	5038	4995	4995
q22	1196	1169	1138	1138
Total cold run time: 55426 ms
Total hot run time: 53692 ms

[doris-robot]

ClickBench: Total hot run time: 31.18 s

machine: 'aliyun_ecs.c7a.8xlarge_32C64G'
scripts: https://github.com/apache/doris/tree/master/tools/clickbench-tools
ClickBench test result on commit 03f7c49f6c431d9f27b5cc0ea0758f0cd8c5f16c, data reload: false

query1	0.04	0.04	0.04
query2	0.07	0.03	0.04
query3	0.24	0.07	0.07
query4	1.60	0.10	0.11
query5	0.54	0.56	0.54
query6	1.13	0.74	0.74
query7	0.03	0.02	0.01
query8	0.05	0.04	0.04
query9	0.63	0.55	0.55
query10	0.58	0.59	0.59
query11	0.17	0.12	0.13
query12	0.16	0.13	0.12
query13	0.65	0.63	0.60
query14	0.81	0.81	0.83
query15	0.90	0.90	0.87
query16	0.42	0.42	0.42
query17	1.10	1.09	1.14
query18	0.26	0.25	0.24
query19	2.00	1.93	2.21
query20	0.02	0.01	0.01
query21	15.38	1.01	0.69
query22	0.76	0.80	0.70
query23	15.06	1.66	0.69
query24	2.98	1.66	1.25
query25	0.27	0.09	0.05
query26	0.25	0.18	0.17
query27	0.06	0.05	0.05
query28	13.56	1.20	0.47
query29	12.62	4.66	3.86
query30	0.27	0.10	0.08
query31	2.85	0.71	0.43
query32	3.25	0.60	0.49
query33	3.16	3.19	3.16
query34	17.02	5.45	4.64
query35	4.69	4.72	4.65
query36	0.69	0.53	0.51
query37	0.09	0.06	0.06
query38	0.05	0.04	0.05
query39	0.04	0.03	0.03
query40	0.19	0.15	0.15
query41	0.08	0.03	0.02
query42	0.04	0.03	0.03
query43	0.05	0.04	0.04
Total cold run time: 104.81 s
Total hot run time: 31.18 s

[yujun777]

run cloud_p0