Android: Add Tensor.ones() and Tensor.zeros() factory methods

[shubham0204]

Fixes #15125

Release notes: misc

Summary

• Add implementation and test for a new factory method Tensor.ones() in the android extension

Test plan

The following new JUnit tests were added to verify the behavior of Tensor.ones() in extension/android/executorch_android/src/test/java/org/pytorch/executorch/TensorTest.kt

• testOnes_DTypeIsFloat

cc @kirklandsign @cbilgin

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/15388

• 📄 Preview Python docs built from this PR

Note: Links to docs will display an error until the docs builds have been completed.

❌ 4 New Failures, 6 Pending

As of commit fac5d2e with merge base 964515c ():

NEW FAILURES - The following jobs have failed:

• pull / unittest / linux / linux-job (gh)
  backends/xnnpack/test/recipes/test_xnnpack_recipes.py::TestXnnpackRecipes::test_int8_static_quant_recipe
• pull / unittest / macos / macos-job (gh)
  backends/xnnpack/test/recipes/test_xnnpack_recipes.py::TestXnnpackRecipes::test_int8_static_quant_recipe
• pull / unittest-editable / linux / linux-job (gh)
  backends/xnnpack/test/recipes/test_xnnpack_recipes.py::TestXnnpackRecipes::test_int8_static_quant_recipe
• pull / unittest-editable / macos / macos-job (gh)
  backends/xnnpack/test/recipes/test_xnnpack_recipes.py::TestXnnpackRecipes::test_int8_static_quant_recipe

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[shubham0204]

@pytorchbot label "release notes: misc"

[GregoryComer]

@shubham0204 Thanks for the contribution. Can you fix the java android lint and rebase the PR? If everything looks good, we can merge it shortly.

[shubham0204]

@GregoryComer I have fixed the Java formatting issues in the modified files. The formatting used is google-java-format as described suggested in the failing CI job. Also rebased the branch onto pytorch:main.

[shubham0204]

@GregoryComer @kirklandsign @psiddh Any updates on this PR?

[GregoryComer]

@shubham0204 Apologies for the slow response. Can you take a look at the errors in this CI job: https://github.com/pytorch/executorch/actions/runs/19102814458/job/54604914604?pr=15388? We should be good to merge once that's green. Thanks!

[shubham0204]

@GregoryComer I have fixed the formatting issue that was causing the job to fail. Could you re-run those workflows?

[GregoryComer]

CI looks green, so I'll go ahead and merge. Thanks for the contribution!