# ADR-0008 - Use NullAway for null checking

## Date

2025-08-06

## Context

Our codebase uses `null` extensively to represent an absence of value or optionality of the argument.
We utilize nullness annotations in Java code and somewhat rely on IDE warnings to guide us.
However, the Java code we have is not fully annotated, which causes several consequences:
* IDE warnings can be misleading

        assertEquals("http://192.168.1.1/path/file", HcHttpClient.constructRedirectLocation("http://192.168.1.1/path/", "file"));
        assertEquals("http://[2001:db8::1]/path/file", HcHttpClient.constructRedirectLocation("http://[2001:db8::1]/path/", "file"));
        assertEquals("http://example.com:8080/path/file", HcHttpClient.constructRedirectLocation("http://example.com:8080/path/", "file"));

minio-2.0.0.tar minio/Chart.yaml apiVersion: v1 appVersion: RELEASE.2021-08-25T00-41-18Z description: Multi-Cloud Object Storage home: https://min.io icon: https://min.io/resources/img/logo/MINIO_wordmark.png keywords: - storage - object-storage - S3 maintainers: - email: ******@****.*** name: MinIO, Inc name: minio sources: - https://github.com/minio/minio version: 2.0.0 minio/values.yaml ## Provide a name in place of minio for `app:` labels ## nameOverride: "" ## Provide a name to substitute for...

        setFlags2(config.getFlags2());

        if (config.getMinimumVersion().isSMB2()) {
            this.dialects = new String[] { "SMB 2.???", "SMB 2.002" };
        } else if (config.getMaximumVersion().isSMB2()) {
            this.dialects = new String[] { "NT LM 0.12", "SMB 2.???", "SMB 2.002" };
        } else {
            this.dialects = new String[] { "NT LM 0.12" };
        }
    }

    /**
     * {@inheritDoc}
     *

KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.
-->

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>org.apache.maven.its.plugins</groupId>

   *
   * <ul>
   *   <li>A domain name, like {@code google.com}
   *   <li>A IPv4 address string, like {@code 127.0.0.1}
   *   <li>An IPv6 address string with or without brackets, like {@code [2001:db8::1]} or {@code
   *       2001:db8::1}
   * </ul>
   *
   * @throws IllegalArgumentException if the specifier is not valid.
   */
  public static HostSpecifier fromValid(String specifier) {

- Graduated _forensic container checkpointing_ [KEP #2008](https://kep.k8s.io/2008) from Alpha to Beta. ([#123215](https://github.com/kubernetes/kubernetes/pull/123215), [@adrianreber](https://github.com/adrianreber)) [SIG Node and Testing]

// GENERATED FILE - DO NOT EDIT

/*
 * Copyright (C) 2008 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

/*
 * Copyright (C) 2009 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

        long delay2 = policy.getDelayMs(2);
        long delay3 = policy.getDelayMs(3);

        // Then - All delays should be the same
        assertEquals(2000, delay1);
        assertEquals(2000, delay2);
        assertEquals(2000, delay3);
    }

    @Test
    @DisplayName("Should provide meaningful toString output")
    void testToString() {
        // Given