refactor [java]: Private constructor for code server utils

GitOrigin-RevId: 80782884ecd167236af29a1c4a76a027e4e44628

java/codeserver/core/src/com/intellij/java/codeserver/core/JavaManifestUtil.java

@@ -15,6 +15,8 @@ import org.jetbrains.annotations.Nullable;
  * Utility methods related to manifest declarations
  */
 public final class JavaManifestUtil {
+  private JavaManifestUtil() { }
+
   /**
    * @param module module to find manifest in
    * @param attribute attribute name from a manifest file

java/codeserver/core/src/com/intellij/java/codeserver/core/JavaPatternExhaustivenessUtil.java

@@ -21,6 +21,8 @@ import static java.util.Objects.hash;
  * Utilities related to the computation of pattern exhaustiveness
  */
 public final class JavaPatternExhaustivenessUtil {
+  private JavaPatternExhaustivenessUtil() { }
+
   private static final Logger LOG = Logger.getInstance(JavaPatternExhaustivenessUtil.class);
   //it is approximately equals max method size * 10
   private static final int MAX_ITERATION_COVERAGE = 5_000;

java/codeserver/core/src/com/intellij/java/codeserver/core/JavaPreviewFeatureUtil.java

@@ -19,6 +19,8 @@ import static java.util.Objects.requireNonNullElse;
  * Utilities to support Java preview feature highlighting
  */
 public final class JavaPreviewFeatureUtil {
+  private JavaPreviewFeatureUtil() { }
+
   /**
    * Internal JDK annotation for preview feature APIs
    */

java/codeserver/core/src/com/intellij/java/codeserver/core/JavaPsiAnnotationUtil.java

@@ -15,6 +15,8 @@ import java.lang.annotation.RetentionPolicy;
  * Utility methods related to {@link PsiAnnotation}.
  */
 public final class JavaPsiAnnotationUtil {
+  private JavaPsiAnnotationUtil() { }
+
   /**
    * @param annotation annotation class
    * @return annotation retention policy; null if cannot be determined

java/codeserver/core/src/com/intellij/java/codeserver/core/JavaPsiEnumUtil.java

@@ -13,6 +13,8 @@ import org.jetbrains.annotations.Nullable;
  * Utility methods related to Java enums
  */
 public final class JavaPsiEnumUtil {
+  private JavaPsiEnumUtil() { }
+
   /**
    * @param field field to check
    * @param enumClass an enum class returned from {@link #getEnumClassForExpressionInInitializer(PsiExpression)}

java/codeserver/core/src/com/intellij/java/codeserver/core/JavaPsiMethodUtil.java

@@ -20,6 +20,8 @@ import static java.util.Objects.requireNonNull;
  * Utilities related to Java methods
  */
 public final class JavaPsiMethodUtil {
+  private JavaPsiMethodUtil() { }
+
   /**
    * @param aClass class to analyze
    * @param overrideEquivalentSuperMethods collection of override-equivalent super methods

java/codeserver/core/src/com/intellij/java/codeserver/core/JavaPsiModifierUtil.java

@@ -18,6 +18,7 @@ import java.util.Set;
  * @see PsiModifierList
  */
 public final class JavaPsiModifierUtil {
+  private JavaPsiModifierUtil() { }
   
   private static final Map<String, Set<String>> ourInterfaceIncompatibleModifiers = Map.of(
     PsiModifier.ABSTRACT, Set.of(),

java/codeserver/core/src/com/intellij/java/codeserver/core/JavaPsiModuleUtil.java

@@ -48,6 +48,8 @@ import static java.util.Objects.requireNonNullElse;
  * Utilities related to JPMS modules
  */
 public final class JavaPsiModuleUtil {
+  private JavaPsiModuleUtil() { }
+
   /**
    * @param element PSI element that belongs to the module
    * @return JPMS module the supplied element belongs to; null if no module definition is found

java/codeserver/core/src/com/intellij/java/codeserver/core/JavaPsiSealedUtil.java

@@ -17,6 +17,8 @@ import static com.intellij.psi.PsiModifier.SEALED;
  * Utility methods related to sealed types
  */
 public final class JavaPsiSealedUtil {
+  private JavaPsiSealedUtil() { }
+
   /**
    * @param psiClass class to check
    * @return true if the class is abstract and sealed

java/codeserver/core/src/com/intellij/java/codeserver/core/JavaPsiSingleFileSourceUtil.java

@@ -13,6 +13,8 @@ import java.io.IOException;
  * Utilities related to single-file Java programs (JEP 330)
  */
 public final class JavaPsiSingleFileSourceUtil {
+  private JavaPsiSingleFileSourceUtil() { }
+
   /**
    * @return true if file correspond to the shebang script
    */

java/codeserver/core/src/com/intellij/java/codeserver/core/JavaPsiSwitchUtil.java

@@ -23,7 +23,7 @@ import static java.util.Objects.requireNonNull;
  * Utility methods to support switch
  */
 public final class JavaPsiSwitchUtil {
-
+  private JavaPsiSwitchUtil() { }
 
   /**
    * Returns the selector kind based on the type.

java/codeserver/core/src/com/intellij/java/codeserver/core/JavaPsiVariableUtil.java

@@ -18,6 +18,7 @@ import java.util.Objects;
  * Utility methods related to variables
  */
 public final class JavaPsiVariableUtil {
+  private JavaPsiVariableUtil() { }
 
   private static PsiVariable findSameNameSibling(@NotNull PsiVariable variable) {
     PsiElement scope = variable.getParent();

java/codeserver/core/src/com/intellij/java/codeserver/core/JavaServiceProviderUtil.java

@@ -14,6 +14,8 @@ import java.util.Set;
  * Utility for working with Java services (jigsaw)
  */
 public final class JavaServiceProviderUtil {
+  private JavaServiceProviderUtil() { }
+
   public static final String PROVIDER = "provider";
   public static final Set<String> JAVA_UTIL_SERVICE_LOADER_METHODS = Set.of("load", "loadInstalled");