if (javahome == null) {
            throw new MisconfiguredToolchainException(
                    "Java toolchain without the " + JavaToolchainImpl.KEY_JAVAHOME + " configuration element.");
        }
        Path normal = Paths.get(javahome.getValue()).normalize();
        if (Files.exists(normal)) {
            jtc.setJavaHome(Paths.get(javahome.getValue()).normalize().toString());
        } else {

        String[] result = invokeDistinct(input);
        assertSame(input, result);
    }

    @Test
    public void test_distinct_singleElement() {
        // Test distinct with single element
        String[] input = new String[] { "element" };
        String[] result = invokeDistinct(input);
        assertSame(input, result);
    }

    @Test
    public void test_distinct_noDuplicates() {

"""
Regression test: Ensure app-level responses with Union models and content/examples
don't accumulate duplicate $ref entries in anyOf arrays.
See https://github.com/fastapi/fastapi/pull/14463
"""

from fastapi import FastAPI
from fastapi.testclient import TestClient
from inline_snapshot import snapshot
from pydantic import BaseModel


class ModelA(BaseModel):
    a: str


class ModelB(BaseModel):
    b: str

    List<E> containsNull = singletonList(null);
    assertTrue("addAll(n, containsNull) should return true", getList().addAll(0, containsNull));
    /*
     * We need (E) to force interpretation of null as the single element of a
     * varargs array, not the array itself
     */
    expectAdded(0, (E) null);
  }

  @ListFeature.Require(SUPPORTS_ADD_WITH_INDEX)
  @CollectionFeature.Require(absent = ALLOWS_NULL_VALUES)

     */
    protected abstract List<Long> create(Long[] elements);

    @Override
    public Long[] createArray(int length) {
      return new Long[length];
    }

    /** Returns the original element list, unchanged. */
    @Override
    public List<Long> order(List<Long> insertionOrder) {
      return insertionOrder;
    }
  }

  public static class SampleLongs extends SampleElements<Long> {

     */
    protected abstract List<Short> create(Short[] elements);

    @Override
    public Short[] createArray(int length) {
      return new Short[length];
    }

    /** Returns the original element list, unchanged. */
    @Override
    public List<Short> order(List<Short> insertionOrder) {
      return insertionOrder;
    }
  }

  public static class SampleShorts extends SampleElements<Short> {

    protected abstract List<Character> create(Character[] elements);

    @Override
    public Character[] createArray(int length) {
      return new Character[length];
    }

    /** Returns the original element list, unchanged. */
    @Override
    public List<Character> order(List<Character> insertionOrder) {
      return insertionOrder;
    }
  }

  public static class SampleChars extends SampleElements<Character> {

     */
    protected abstract List<Short> create(Short[] elements);

    @Override
    public Short[] createArray(int length) {
      return new Short[length];
    }

    /** Returns the original element list, unchanged. */
    @Override
    public List<Short> order(List<Short> insertionOrder) {
      return insertionOrder;
    }
  }

  public static class SampleShorts extends SampleElements<Short> {

        StackTraceElement[] stackTrace = exception.getStackTrace();
        assertNotNull(stackTrace);
        assertTrue(stackTrace.length > 0);

        // The first element should be from this test method
        StackTraceElement firstElement = stackTrace[0];
        assertEquals("test_stackTrace", firstElement.getMethodName());

        assertNotNull(exception.getStackTrace());
        assertTrue(exception.getStackTrace().length > 0);

        // Verify that the first stack trace element is from this test method
        StackTraceElement firstElement = exception.getStackTrace()[0];
        assertEquals(this.getClass().getName(), firstElement.getClassName());