The core-runtime module defines each runtime:

- The target JVM for the runtime. Each runtime has its own JVM compatibility constraints.
- Some base services that are available to code hosted by the runtime. This varies by runtime.
- Additional constraints. For example, the CLI client runtimes limit the libraries that are available to the code in that runtime, for performance reasons. 

import org.lastaflute.web.validation.Required;
import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

import jakarta.validation.constraints.Max;
import jakarta.validation.constraints.Min;
import jakarta.validation.constraints.Size;

/**
 * Form class for creating data store configurations.
 * Data configs allow administrators to set up crawling of various data sources

        }
      }
    }
    return impliedSet;
  }

  /**
   * Get the full set of requirements for a tester class.
   *
   * @param testerClass a tester class
   * @return all the constraints implicitly or explicitly required by the class or any of its
   *     superclasses.
   * @throws ConflictingRequirementsException if the requirements are mutually inconsistent.
   */

import org.lastaflute.web.validation.Required;
import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

import jakarta.validation.constraints.Max;
import jakarta.validation.constraints.Min;
import jakarta.validation.constraints.Size;

/**
 * The create form for Web Config.
 *
 */
public class CreateForm {

    /**
     * Default constructor.
     */
    public CreateForm() {

 */
package org.codelibs.fess.app.web.admin.storage;

import java.util.HashMap;
import java.util.Map;

import org.apache.logging.log4j.core.config.plugins.validation.constraints.Required;

import jakarta.validation.constraints.Size;

/**
 * Form class for handling tag operations in storage management.
 * This form represents tag data including path, name, and associated metadata.
 */
public class TagForm {

import org.lastaflute.web.validation.Required;
import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

import jakarta.validation.constraints.Max;
import jakarta.validation.constraints.Min;
import jakarta.validation.constraints.Size;

/**
 * The create form for File Config.
 *
 */
public class CreateForm {

    /**
     * Creates a new CreateForm instance.
     */

import org.junit.jupiter.api.Test;

/**
 * Tests for the SmbPipeResource interface.
 * This test class primarily verifies the constant values defined in the interface.
 */
class SmbPipeResourceTest {

    /**
     * Test if the PIPE_TYPE_RDONLY constant has the correct value.
     */
    @Test
    void testPipeTypeRdonly() {

  }

  static final class ConstantWeigher implements Weigher<Object, Object> {
    private final int constant;

    ConstantWeigher(int constant) {
      this.constant = constant;
    }

    @Override
    public int weigh(Object key, Object value) {
      return constant;
    }
  }

  static final class IntKeyWeigher implements Weigher<Integer, Object> {
    @Override

    /** Log type constant for zero-click search aggregation. */
    public static final String LOG_TYPE_SEARCH_ZEROCLICK = "search_zeroclick_agg";

    /** Log type constant for click logs. */
    public static final String LOG_TYPE_CLICK = "click";

    /** Log type constant for click count aggregation. */
    public static final String LOG_TYPE_CLICK_COUNT = "click_count_agg";

    /** Log type constant for favorite logs. */

When working on some source code it is important to be aware of the runtimes in which it will run, so that you don't break these constraints.
There is some assistance in the IDE for this plus a lot of validation that is applied at build time and on CI, but it is useful to keep these constraints in mind as well.

See [Gradle runtimes](runtimes.md) for a list of these runtimes and more details.

### Build execution model