Fix binary compatibility issues when building on JDK 17 and running on JDK 11, and prepare to add test coverage for that configuration

Thanks to Stephan202's suggestion in #3895 (comment)

#3895

PiperOrigin-RevId: 530957571

Author: cushon

check_api/src/main/java/com/google/errorprone/util/ASTHelpers.java

@@ -1141,9 +1141,17 @@ public static List<MethodTree> getConstructors(ClassTree classTree) {
     return constructors;
   }
 
+  /**
+   * A wrapper for {@link Symbol#getEnclosedElements} to avoid binary compatibility issues for
+   * covariant overrides in subtypes of {@link Symbol}.
+   */
+  public static List<Symbol> getEnclosedElements(Symbol symbol) {
+    return symbol.getEnclosedElements();
+  }
+
   /** Returns the list of all constructors defined in the class. */
   public static ImmutableList<MethodSymbol> getConstructors(ClassSymbol classSymbol) {
-    return classSymbol.getEnclosedElements().stream()
+    return getEnclosedElements(classSymbol).stream()
         .filter(Symbol::isConstructor)
         .map(e -> (MethodSymbol) e)
         .collect(toImmutableList());

core/src/main/java/com/google/errorprone/bugpatterns/ChainedAssertionLosesContext.java

@@ -25,6 +25,7 @@
 import static com.google.errorprone.matchers.Matchers.instanceMethod;
 import static com.google.errorprone.matchers.Matchers.staticMethod;
 import static com.google.errorprone.util.ASTHelpers.getDeclaredSymbol;
+import static com.google.errorprone.util.ASTHelpers.getEnclosedElements;
 import static com.google.errorprone.util.ASTHelpers.getSymbol;
 import static com.google.errorprone.util.ASTHelpers.isSubtype;
 import static com.sun.source.tree.Tree.Kind.CLASS;
@@ -212,9 +213,9 @@ private static FactoryMethodName tryFindFactory(
     ImmutableSet<MethodSymbol> factories =
         concat(
                 // The class that assertThat is declared in:
-                assertThatSymbol.owner.getEnclosedElements().stream(),
+                getEnclosedElements(assertThatSymbol.owner).stream(),
                 // The Subject class (possibly the same; if so, toImmutableSet() will deduplicate):
-                assertThatSymbol.getReturnType().asElement().getEnclosedElements().stream())
+                getEnclosedElements(assertThatSymbol.getReturnType().asElement()).stream())
             .filter(s -> s instanceof MethodSymbol)
             .map(s -> (MethodSymbol) s)
             .filter(

core/src/main/java/com/google/errorprone/bugpatterns/FuturesGetCheckedIllegalExceptionType.java

@@ -20,6 +20,7 @@
 import static com.google.errorprone.matchers.Matchers.argument;
 import static com.google.errorprone.matchers.Matchers.classLiteral;
 import static com.google.errorprone.matchers.method.MethodMatchers.staticMethod;
+import static com.google.errorprone.util.ASTHelpers.getEnclosedElements;
 import static com.google.errorprone.util.ASTHelpers.getSymbol;
 import static com.google.errorprone.util.ASTHelpers.getType;
 import static com.google.errorprone.util.ASTHelpers.isSameType;
@@ -123,7 +124,7 @@ public boolean matches(ExpressionTree tree, VisitorState state) {
                 return true;
               }
 
-              for (Symbol enclosedSymbol : classSymbol.getEnclosedElements()) {
+              for (Symbol enclosedSymbol : getEnclosedElements(classSymbol)) {
                 if (!enclosedSymbol.isConstructor()) {
                   continue;
                 }

core/src/main/java/com/google/errorprone/bugpatterns/HidingField.java

@@ -17,6 +17,7 @@
 
 import static com.google.errorprone.BugPattern.SeverityLevel.WARNING;
 import static com.google.errorprone.util.ASTHelpers.enclosingPackage;
+import static com.google.errorprone.util.ASTHelpers.getEnclosedElements;
 import static com.google.errorprone.util.ASTHelpers.getSymbol;
 import static java.util.stream.Collectors.toCollection;
 
@@ -70,7 +71,7 @@ public Description matchClass(ClassTree classTree, VisitorState visitorState) {
 
     while (!classSymbol.getSuperclass().getKind().equals(TypeKind.NONE)) {
       TypeSymbol parentSymbol = classSymbol.getSuperclass().asElement();
-      List<Symbol> parentElements = parentSymbol.getEnclosedElements();
+      List<Symbol> parentElements = getEnclosedElements(parentSymbol);
 
       Map<Name, VarSymbol> parentMembers =
           parentElements.stream()

core/src/test/java/com/google/errorprone/bugpatterns/apidiff/CompilationBuilderHelpers.java

@@ -131,7 +131,7 @@ CompilationResult compile() throws IOException {
                   diagnosticCollector,
                   javacopts,
                   /* classes= */ Collections.<String>emptyList(),
-                  fileManager.getJavaFileObjectsFromPaths(sources))
+                  fileManager.getJavaFileObjects(sources.toArray(new Path[0])))
               .call();
 
       return CompilationResult.create(

pom.xml

@@ -208,7 +208,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.2</version>
+        <version>3.1.0</version>
         <configuration>
           <argLine>
             -Xmx1g
@@ -303,5 +303,28 @@
         </plugins>
       </build>
     </profile>
+    <profile>
+      <id>custom-test-runtime-version</id>
+      <activation>
+        <property>
+          <name>surefire.jdk-toolchain-version</name>
+        </property>
+      </activation>
+      <build>
+        <pluginManagement>
+          <plugins>
+            <plugin>
+              <groupId>org.apache.maven.plugins</groupId>
+              <artifactId>maven-surefire-plugin</artifactId>
+              <configuration>
+                <jdkToolchain>
+                  <version>${surefire.jdk-toolchain-version}</version>
+                </jdkToolchain>
+              </configuration>
+            </plugin>
+          </plugins>
+        </pluginManagement>
+      </build>
+    </profile>
   </profiles>
 </project>