google · copybara-service · Sep 29, 2025
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -40,13 +40,13 @@ jobs:
       # When we specify multiple JDKs, the final one becomes the default, which is used to execute Maven itself.
       # Our Maven configuration then specifies different JDKs to use for some of the steps:
       # - 11 (sometimes) to *download* to support anyone who runs JDiff or our Gradle integration tests (including our doc snapshots and our Java 11 CI test run) but not to use directly
-      # - 25 for running Javadoc and javac (to help people who build Guava locally and might not use a recent JDK to run Maven)
+      # - 26 for running Javadoc and javac (to help people who build Guava locally and might not use a recent JDK to run Maven)
       - name: 'Set up JDKs'
         uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0
         with:
           java-version: |
             ${{ matrix.java }}
-            25
+            26
           distribution: 'temurin'
           cache: 'maven'
       - name: 'Install'
@@ -81,7 +81,7 @@ jobs:
         with:
           # For discussion, see the first setup-java block.
           # The publish-snapshot workflow doesn't run tests, so we don't have to care which version Maven would select for that step.
-          java-version: 25
+          java-version: 26
           distribution: 'temurin'
           cache: 'maven'
           server-id: central
@@ -111,7 +111,7 @@ jobs:
           # But we need Java 11 for JDiff.
           java-version: |
             11
-            25
+            26
           distribution: 'temurin'
           cache: 'maven'
       - name: 'Generate latest docs'

diff --git a/android/guava-tests/test/com/google/common/base/PreconditionsTest.java b/android/guava-tests/test/com/google/common/base/PreconditionsTest.java
@@ -426,7 +426,7 @@ private static ImmutableList<ImmutableList<Class<?>>> allSignatures(Class<?> pre
   // 'test' to demonstrate some potentially ambiguous overloads.  This 'test' is kind of strange,
   // but essentially each line will be a call to a Preconditions method that, but for a documented
   // change would be a compiler error.
-  // See https://docs.oracle.com/javase/specs/jls/se25/html/jls-15.html#jls-15.12.2 for the spec on
+  // See https://docs.oracle.com/javase/specs/jls/se26/html/jls-15.html#jls-15.12.2 for the spec on
   // how javac selects overloads
   @SuppressWarnings("null")
   public void overloadSelection() {

diff --git a/android/guava-tests/test/com/google/common/collect/FluentIterableTest.java b/android/guava-tests/test/com/google/common/collect/FluentIterableTest.java
@@ -165,7 +165,7 @@ static class B implements X, Y {}
    * This test passes if the {@code concat(…).filter(…).filter(…)} statement at the end compiles.
    * That statement compiles only if {@link FluentIterable#concat concat(aIterable, bIterable)}
    * returns a {@link FluentIterable} of elements of an anonymous type whose supertypes are the <a
-   * href="https://docs.oracle.com/javase/specs/jls/se25/html/jls-4.html#jls-4.9">intersection</a>
+   * href="https://docs.oracle.com/javase/specs/jls/se26/html/jls-4.html#jls-4.9">intersection</a>
    * of the supertypes of {@code A} and the supertypes of {@code B}.
    */
   public void testConcatIntersectionType() {

diff --git a/android/guava-tests/test/com/google/common/hash/MacHashFunctionTest.java b/android/guava-tests/test/com/google/common/hash/MacHashFunctionTest.java
@@ -61,7 +61,7 @@ public class MacHashFunctionTest extends TestCase {
 
   // From https://docs.oracle.com/javase/7/docs/technotes/guides/security/StandardNames.html#Mac
   // TODO(cpovirk): Evaluate newer list:
-  // https://docs.oracle.com/en/java/javase/25/docs/specs/security/standard-names.html#mac-algorithms
+  // https://docs.oracle.com/en/java/javase/26/docs/specs/security/standard-names.html#mac-algorithms
   private static final ImmutableTable<String, SecretKey, HashFunction> ALGORITHMS =
       new ImmutableTable.Builder<String, SecretKey, HashFunction>()
           .put("HmacMD5", MD5_KEY, hmacMd5(MD5_KEY))

diff --git a/android/guava-tests/test/com/google/common/hash/MessageDigestHashFunctionTest.java b/android/guava-tests/test/com/google/common/hash/MessageDigestHashFunctionTest.java
@@ -43,7 +43,7 @@ public class MessageDigestHashFunctionTest extends TestCase {
   private static final ImmutableSet<String> INPUTS = ImmutableSet.of("", "Z", "foobar");
 
   // From "How Provider Implementations Are Requested and Supplied" from
-  // https://docs.oracle.com/en/java/javase/25/security/java-cryptography-architecture-jca-reference-guide.html#:~:text=How%20Provider%20Implementations%20Are%20Requested%20and%20Supplied
+  // https://docs.oracle.com/en/java/javase/26/security/java-cryptography-architecture-jca-reference-guide.html#:~:text=How%20Provider%20Implementations%20Are%20Requested%20and%20Supplied
   //  - Some providers may choose to also include alias names.
   //  - For example, the "SHA-1" algorithm might be referred to as "SHA1".
   //  - The algorithm name is not case-sensitive.

diff --git a/android/guava/pom.xml b/android/guava/pom.xml
@@ -191,7 +191,7 @@
           </tags>
 
           <!-- TODO(cpovirk): Move this to the parent after making the package-list files available there. -->
-          <!-- We add the link ourselves so that we can choose Java 25 over the version that -source suggests. -->
+          <!-- We add the link ourselves so that we can choose Java 26 over the version that -source suggests. -->
           <detectJavaApiLink>false</detectJavaApiLink>
           <offlineLinks>
             <!-- We need local copies of some of these for 2 reasons: a User-Agent problem (https://stackoverflow.com/a/47891403/28465) and an SSL problem (https://issues.apache.org/jira/browse/MJAVADOC-507). If we choose to work around the User-Agent problem, we can go back to <links>, sidestepping the SSL problem. -->
@@ -205,7 +205,7 @@
             </offlineLink>
           </offlineLinks>
           <links>
-            <link>https://docs.oracle.com/en/java/javase/25/docs/api/</link>
+            <link>https://docs.oracle.com/en/java/javase/26/docs/api/</link>
             <link>https://jspecify.dev/docs/api/</link>
           </links>
           <overview>../../overview.html</overview>

diff --git a/android/guava/src/com/google/common/base/CharMatcher.java b/android/guava/src/com/google/common/base/CharMatcher.java
@@ -41,7 +41,7 @@
  * assigned characters, including important CJK characters and emoji.
  *
  * <p>Supplementary characters are <a
- * href="https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/lang/Character.html#supplementary">encoded
+ * href="https://docs.oracle.com/en/java/javase/26/docs/api/java.base/java/lang/Character.html#supplementary">encoded
  * into a {@code String} using surrogate pairs</a>, and a {@code CharMatcher} treats these just as
  * two separate characters. {@link #countIn} counts each supplementary character as 2 {@code char}s.
  *

diff --git a/android/guava/src/com/google/common/base/Strings.java b/android/guava/src/com/google/common/base/Strings.java
@@ -233,7 +233,7 @@ static boolean validSurrogatePairAt(CharSequence string, int index) {
    * <p><b>Note:</b> For most string-formatting needs, use {@link String#format String.format},
    * {@link java.io.PrintWriter#format PrintWriter.format}, and related methods. These support the
    * full range of <a
-   * href="https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/util/Formatter.html#syntax">format
+   * href="https://docs.oracle.com/en/java/javase/26/docs/api/java.base/java/util/Formatter.html#syntax">format
    * specifiers</a>, and alert you to usage errors by throwing {@link
    * java.util.IllegalFormatException}.
    *

diff --git a/android/guava/src/com/google/common/collect/ImmutableCollection.java b/android/guava/src/com/google/common/collect/ImmutableCollection.java
@@ -95,7 +95,7 @@
  * <p>Expressing the immutability guarantee directly in the type that user code references is a
  * powerful advantage. Although Java offers certain immutable collection factory methods, such as
  * {@link Collections#singleton(Object)} and <a
- * href="https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/util/Set.html#unmodifiable">{@code
+ * href="https://docs.oracle.com/en/java/javase/26/docs/api/java.base/java/util/Set.html#unmodifiable">{@code
  * Set.of}</a>, we recommend using <i>these</i> classes instead for this reason (as well as for
  * consistency).
  *

diff --git a/android/guava/src/com/google/common/math/IntMath.java b/android/guava/src/com/google/common/math/IntMath.java
@@ -383,7 +383,7 @@ public static int divide(int p, int q, RoundingMode mode) {
    * }
    *
    * @throws ArithmeticException if {@code m <= 0}
-   * @see <a href="https://docs.oracle.com/javase/specs/jls/se25/html/jls-15.html#jls-15.17.3">
+   * @see <a href="https://docs.oracle.com/javase/specs/jls/se26/html/jls-15.html#jls-15.17.3">
    *     Remainder Operator</a>
    */
   public static int mod(int x, int m) {

diff --git a/android/guava/src/com/google/common/math/LongMath.java b/android/guava/src/com/google/common/math/LongMath.java
@@ -447,7 +447,7 @@ public static long divide(long p, long q, RoundingMode mode) {
    * }
    *
    * @throws ArithmeticException if {@code m <= 0}
-   * @see <a href="https://docs.oracle.com/javase/specs/jls/se25/html/jls-15.html#jls-15.17.3">
+   * @see <a href="https://docs.oracle.com/javase/specs/jls/se26/html/jls-15.html#jls-15.17.3">
    *     Remainder Operator</a>
    */
   @GwtIncompatible // TODO
@@ -471,7 +471,7 @@ public static int mod(long x, int m) {
    * }
    *
    * @throws ArithmeticException if {@code m <= 0}
-   * @see <a href="https://docs.oracle.com/javase/specs/jls/se25/html/jls-15.html#jls-15.17.3">
+   * @see <a href="https://docs.oracle.com/javase/specs/jls/se26/html/jls-15.html#jls-15.17.3">
    *     Remainder Operator</a>
    */
   @GwtIncompatible // TODO

diff --git a/android/guava/src/com/google/common/reflect/ClassPath.java b/android/guava/src/com/google/common/reflect/ClassPath.java
@@ -570,7 +570,7 @@ public String toString() {
   /**
    * Returns the class path URIs specified by the {@code Class-Path} manifest attribute, according
    * to <a
-   * href="https://docs.oracle.com/en/java/javase/25/docs/specs/jar/jar.html#main-attributes">JAR
+   * href="https://docs.oracle.com/en/java/javase/26/docs/specs/jar/jar.html#main-attributes">JAR
    * File Specification</a>. If {@code manifest} is null, it means the jar file has no manifest, and
    * an empty set will be returned.
    */
@@ -652,7 +652,7 @@ static ImmutableList<URL> parseJavaClassPath() {
 
   /**
    * Returns the absolute uri of the Class-Path entry value as specified in <a
-   * href="https://docs.oracle.com/en/java/javase/25/docs/specs/jar/jar.html#main-attributes">JAR
+   * href="https://docs.oracle.com/en/java/javase/26/docs/specs/jar/jar.html#main-attributes">JAR
    * File Specification</a>. Even though the specification only talks about relative urls, absolute
    * urls are actually supported too (for example, in Maven surefire plugin).
    */

diff --git a/android/guava/src/com/google/common/reflect/TypeToken.java b/android/guava/src/com/google/common/reflect/TypeToken.java
@@ -451,7 +451,7 @@ public final TypeToken<? extends T> getSubtype(Class<?> subclass) {
   /**
    * Returns true if this type is a supertype of the given {@code type}. "Supertype" is defined
    * according to <a
-   * href="https://docs.oracle.com/javase/specs/jls/se25/html/jls-4.html#jls-4.5.1">the rules for
+   * href="https://docs.oracle.com/javase/specs/jls/se26/html/jls-4.html#jls-4.5.1">the rules for
    * type arguments</a> introduced with Java generics.
    *
    * @since 19.0
@@ -463,7 +463,7 @@ public final boolean isSupertypeOf(TypeToken<?> type) {
   /**
    * Returns true if this type is a supertype of the given {@code type}. "Supertype" is defined
    * according to <a
-   * href="https://docs.oracle.com/javase/specs/jls/se25/html/jls-4.html#jls-4.5.1">the rules for
+   * href="https://docs.oracle.com/javase/specs/jls/se26/html/jls-4.html#jls-4.5.1">the rules for
    * type arguments</a> introduced with Java generics.
    *
    * @since 19.0
@@ -475,7 +475,7 @@ public final boolean isSupertypeOf(Type type) {
   /**
    * Returns true if this type is a subtype of the given {@code type}. "Subtype" is defined
    * according to <a
-   * href="https://docs.oracle.com/javase/specs/jls/se25/html/jls-4.html#jls-4.5.1">the rules for
+   * href="https://docs.oracle.com/javase/specs/jls/se26/html/jls-4.html#jls-4.5.1">the rules for
    * type arguments</a> introduced with Java generics.
    *
    * @since 19.0
@@ -487,7 +487,7 @@ public final boolean isSubtypeOf(TypeToken<?> type) {
   /**
    * Returns true if this type is a subtype of the given {@code type}. "Subtype" is defined
    * according to <a
-   * href="https://docs.oracle.com/javase/specs/jls/se25/html/jls-4.html#jls-4.5.1">the rules for
+   * href="https://docs.oracle.com/javase/specs/jls/se26/html/jls-4.html#jls-4.5.1">the rules for
    * type arguments</a> introduced with Java generics.
    *
    * @since 19.0

diff --git a/android/guava/src/com/google/common/util/concurrent/ListenableFuture.java b/android/guava/src/com/google/common/util/concurrent/ListenableFuture.java
@@ -143,7 +143,7 @@ public interface ListenableFuture<V extends @Nullable Object> extends Future<V>
    * Futures#addCallback addCallback()}.
    *
    * <p>Memory consistency effects: Actions in a thread prior to adding a listener <a
-   * href="https://docs.oracle.com/javase/specs/jls/se25/html/jls-17.html#jls-17.4.5">
+   * href="https://docs.oracle.com/javase/specs/jls/se26/html/jls-17.html#jls-17.4.5">
    * <i>happen-before</i></a> its execution begins, perhaps in another thread.
    *
    * <p>Guava implementations of {@code ListenableFuture} promptly release references to listeners

diff --git a/android/guava/src/com/google/common/util/concurrent/Uninterruptibles.java b/android/guava/src/com/google/common/util/concurrent/Uninterruptibles.java
@@ -116,7 +116,7 @@ public static boolean awaitUninterruptibly(CountDownLatch latch, long timeout, T
    *
    * <p>If the underlying {@code await} call is interrupted, then {@code awaitUninterruptibly}
    * converts that into a <a
-   * href="https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/util/concurrent/locks/Condition.html#implementation-considerations-heading">spurious
+   * href="https://docs.oracle.com/en/java/javase/26/docs/api/java.base/java/util/concurrent/locks/Condition.html#implementation-considerations-heading">spurious
    * wakeup</a>. This means that resulting wait is not "uninterruptible" in the normal sense of
    * {@link Uninterruptibles}. Still, this method allows callers to write <a
    * href="https://errorprone.info/bugpattern/WaitNotInLoop">the standard, required loop for waiting on a {@code
@@ -138,7 +138,7 @@ public static boolean awaitUninterruptibly(Condition condition, Duration timeout
    *
    * <p>If the underlying {@code await} call is interrupted, then {@code awaitUninterruptibly}
    * converts that into a <a
-   * href="https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/util/concurrent/locks/Condition.html#implementation-considerations-heading">spurious
+   * href="https://docs.oracle.com/en/java/javase/26/docs/api/java.base/java/util/concurrent/locks/Condition.html#implementation-considerations-heading">spurious
    * wakeup</a>. This means that resulting wait is not "uninterruptible" in the normal sense of
    * {@link Uninterruptibles}. Still, this method allows callers to write <a
    * href="https://errorprone.info/bugpattern/WaitNotInLoop">the standard, required loop for waiting on a {@code

diff --git a/android/pom.xml b/android/pom.xml
@@ -399,7 +399,7 @@
           <configuration>
             <toolchains>
               <jdk>
-                <version>25</version>
+                <version>26</version>
               </jdk>
             </toolchains>
           </configuration>
@@ -469,14 +469,14 @@
             (But don't run that if you have put something into ~/.m2/toolchains.xml yourself.)
             -->
             <execution>
-              <id>download-25-and-surefire-version</id>
+              <id>download-26-and-surefire-version</id>
               <goals>
                 <goal>toolchain</goal>
               </goals>
               <configuration>
                 <toolchains>
                   <jdk>
-                    <version>25</version>
+                    <version>26</version>
                     <vendor>temurin</vendor>
                   </jdk>
                   <testJdk>

diff --git a/futures/listenablefuture1/src/com/google/common/util/concurrent/ListenableFuture.java b/futures/listenablefuture1/src/com/google/common/util/concurrent/ListenableFuture.java
@@ -143,7 +143,7 @@ public interface ListenableFuture<V extends @Nullable Object> extends Future<V>
    * Futures#addCallback addCallback()}.
    *
    * <p>Memory consistency effects: Actions in a thread prior to adding a listener <a
-   * href="https://docs.oracle.com/javase/specs/jls/se25/html/jls-17.html#jls-17.4.5">
+   * href="https://docs.oracle.com/javase/specs/jls/se26/html/jls-17.html#jls-17.4.5">
    * <i>happen-before</i></a> its execution begins, perhaps in another thread.
    *
    * <p>Guava implementations of {@code ListenableFuture} promptly release references to listeners

diff --git a/guava-tests/test/com/google/common/base/PreconditionsTest.java b/guava-tests/test/com/google/common/base/PreconditionsTest.java
@@ -426,7 +426,7 @@ private static ImmutableList<ImmutableList<Class<?>>> allSignatures(Class<?> pre
   // 'test' to demonstrate some potentially ambiguous overloads.  This 'test' is kind of strange,
   // but essentially each line will be a call to a Preconditions method that, but for a documented
   // change would be a compiler error.
-  // See https://docs.oracle.com/javase/specs/jls/se25/html/jls-15.html#jls-15.12.2 for the spec on
+  // See https://docs.oracle.com/javase/specs/jls/se26/html/jls-15.html#jls-15.12.2 for the spec on
   // how javac selects overloads
   @SuppressWarnings("null")
   public void overloadSelection() {

diff --git a/guava-tests/test/com/google/common/collect/FluentIterableTest.java b/guava-tests/test/com/google/common/collect/FluentIterableTest.java
@@ -165,7 +165,7 @@ static class B implements X, Y {}
    * This test passes if the {@code concat(…).filter(…).filter(…)} statement at the end compiles.
    * That statement compiles only if {@link FluentIterable#concat concat(aIterable, bIterable)}
    * returns a {@link FluentIterable} of elements of an anonymous type whose supertypes are the <a
-   * href="https://docs.oracle.com/javase/specs/jls/se25/html/jls-4.html#jls-4.9">intersection</a>
+   * href="https://docs.oracle.com/javase/specs/jls/se26/html/jls-4.html#jls-4.9">intersection</a>
    * of the supertypes of {@code A} and the supertypes of {@code B}.
    */
   public void testConcatIntersectionType() {

diff --git a/guava-tests/test/com/google/common/hash/MacHashFunctionTest.java b/guava-tests/test/com/google/common/hash/MacHashFunctionTest.java
@@ -61,7 +61,7 @@ public class MacHashFunctionTest extends TestCase {
 
   // From https://docs.oracle.com/javase/7/docs/technotes/guides/security/StandardNames.html#Mac
   // TODO(cpovirk): Evaluate newer list:
-  // https://docs.oracle.com/en/java/javase/25/docs/specs/security/standard-names.html#mac-algorithms
+  // https://docs.oracle.com/en/java/javase/26/docs/specs/security/standard-names.html#mac-algorithms
   private static final ImmutableTable<String, SecretKey, HashFunction> ALGORITHMS =
       new ImmutableTable.Builder<String, SecretKey, HashFunction>()
           .put("HmacMD5", MD5_KEY, hmacMd5(MD5_KEY))

diff --git a/guava-tests/test/com/google/common/hash/MessageDigestHashFunctionTest.java b/guava-tests/test/com/google/common/hash/MessageDigestHashFunctionTest.java
@@ -43,7 +43,7 @@ public class MessageDigestHashFunctionTest extends TestCase {
   private static final ImmutableSet<String> INPUTS = ImmutableSet.of("", "Z", "foobar");
 
   // From "How Provider Implementations Are Requested and Supplied" from
-  // https://docs.oracle.com/en/java/javase/25/security/java-cryptography-architecture-jca-reference-guide.html#:~:text=How%20Provider%20Implementations%20Are%20Requested%20and%20Supplied
+  // https://docs.oracle.com/en/java/javase/26/security/java-cryptography-architecture-jca-reference-guide.html#:~:text=How%20Provider%20Implementations%20Are%20Requested%20and%20Supplied
   //  - Some providers may choose to also include alias names.
   //  - For example, the "SHA-1" algorithm might be referred to as "SHA1".
   //  - The algorithm name is not case-sensitive.

diff --git a/guava/pom.xml b/guava/pom.xml
@@ -184,7 +184,7 @@
           </tags>
 
           <!-- TODO(cpovirk): Move this to the parent after making the package-list files available there. -->
-          <!-- We add the link ourselves so that we can choose Java 25 over the version that -source suggests. -->
+          <!-- We add the link ourselves so that we can choose Java 26 over the version that -source suggests. -->
           <detectJavaApiLink>false</detectJavaApiLink>
           <offlineLinks>
             <!-- We need local copies of some of these for 2 reasons: a User-Agent problem (https://stackoverflow.com/a/47891403/28465) and an SSL problem (https://issues.apache.org/jira/browse/MJAVADOC-507). If we choose to work around the User-Agent problem, we can go back to <links>, sidestepping the SSL problem. -->
@@ -198,7 +198,7 @@
             </offlineLink>
           </offlineLinks>
           <links>
-            <link>https://docs.oracle.com/en/java/javase/25/docs/api/</link>
+            <link>https://docs.oracle.com/en/java/javase/26/docs/api/</link>
             <link>https://jspecify.dev/docs/api/</link>
           </links>
           <overview>../overview.html</overview>

diff --git a/guava/src/com/google/common/base/CharMatcher.java b/guava/src/com/google/common/base/CharMatcher.java
@@ -41,7 +41,7 @@
  * assigned characters, including important CJK characters and emoji.
  *
  * <p>Supplementary characters are <a
- * href="https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/lang/Character.html#supplementary">encoded
+ * href="https://docs.oracle.com/en/java/javase/26/docs/api/java.base/java/lang/Character.html#supplementary">encoded
  * into a {@code String} using surrogate pairs</a>, and a {@code CharMatcher} treats these just as
  * two separate characters. {@link #countIn} counts each supplementary character as 2 {@code char}s.
  *