chore(core): fix various compilation warnings

Fixed clear Java compilation warnings.

cli/src/main/java/io/kestra/cli/commands/plugins/PluginDocCommand.java

@@ -1,6 +1,5 @@
 package io.kestra.cli.commands.plugins;
 
-import com.google.common.base.Charsets;
 import com.google.common.io.Files;
 import io.kestra.cli.AbstractCommand;
 import io.kestra.core.docs.DocumentationGenerator;
@@ -61,7 +60,7 @@ public class PluginDocCommand extends AbstractCommand {
                                 Files
                                     .asCharSink(
                                         file,
-                                        Charsets.UTF_8
+                                        StandardCharsets.UTF_8
                                     ).write(s.getBody());
                                 stdOut("Generate doc in: {0}", file);
 

core/src/main/java/io/kestra/core/docs/DocumentationGenerator.java

@@ -1,6 +1,5 @@
 package io.kestra.core.docs;
 
-import com.google.common.base.Charsets;
 import com.google.common.collect.ImmutableMap;
 import io.kestra.core.models.annotations.PluginSubGroup;
 import io.kestra.core.models.conditions.Condition;
@@ -29,6 +28,7 @@ import org.apache.commons.io.IOUtils;
 
 import java.io.IOException;
 import java.io.Writer;
+import java.nio.charset.StandardCharsets;
 import java.util.*;
 import java.util.regex.Pattern;
 import java.util.stream.Collectors;
@@ -257,7 +257,7 @@ public class DocumentationGenerator {
     public static <T> String render(String templateName, Map<String, Object> vars) throws IOException {
         String pebbleTemplate = IOUtils.toString(
             Objects.requireNonNull(DocumentationGenerator.class.getClassLoader().getResourceAsStream("docs/" + templateName + ".peb")),
-            Charsets.UTF_8
+            StandardCharsets.UTF_8
         );
 
         PebbleTemplate compiledTemplate = pebbleEngine.getLiteralTemplate(pebbleTemplate);

core/src/main/java/io/kestra/core/models/validations/KestraConstraintViolationException.java

@@ -5,11 +5,14 @@ import io.kestra.core.models.tasks.Task;
 import jakarta.validation.ConstraintViolation;
 import jakarta.validation.ConstraintViolationException;
 
+import java.io.Serial;
 import java.util.Set;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 public class KestraConstraintViolationException extends ConstraintViolationException {
+    @Serial
+    private static final long serialVersionUID = 1L;
 
     public KestraConstraintViolationException(Set<? extends ConstraintViolation<?>> constraintViolations) {
         super(constraintViolations);

core/src/main/java/io/kestra/core/runners/pebble/filters/UrlDecoderFilter.java

@@ -12,8 +12,8 @@ import io.pebbletemplates.pebble.extension.Filter;
 import io.pebbletemplates.pebble.template.EvaluationContext;
 import io.pebbletemplates.pebble.template.PebbleTemplate;
 
-import java.io.UnsupportedEncodingException;
 import java.net.URLDecoder;
+import java.nio.charset.StandardCharsets;
 import java.util.List;
 import java.util.Map;
 
@@ -31,10 +31,7 @@ public class UrlDecoderFilter implements Filter {
             return null;
         }
         String arg = (String) input;
-        try {
+        arg = URLDecoder.decode(arg, StandardCharsets.UTF_8);
-            arg = URLDecoder.decode(arg, "UTF-8");
-        } catch (UnsupportedEncodingException e) {
-        }
         return arg;
     }
 

core/src/main/java/io/kestra/core/utils/Hashing.java

@@ -1,8 +1,7 @@
 package io.kestra.core.utils;
 
-import com.google.common.base.Charsets;
 import com.google.common.hash.HashCode;
-import com.google.common.hash.Hasher;
+import java.nio.charset.StandardCharsets;
 
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
@@ -62,6 +61,6 @@ public final class Hashing {
     }
 
     private static HashCode getHashString(String value) {
-        return com.google.common.hash.Hashing.murmur3_128().hashString(value, Charsets.UTF_8);
+        return com.google.common.hash.Hashing.murmur3_128().hashString(value, StandardCharsets.UTF_8);
     }
 }

core/src/main/java/io/kestra/core/utils/IdUtils.java

@@ -1,9 +1,9 @@
 package io.kestra.core.utils;
 
 import com.devskiller.friendly_id.FriendlyId;
-import com.google.common.base.Charsets;
 import com.google.common.hash.HashFunction;
 import com.google.common.hash.Hashing;
+import java.nio.charset.StandardCharsets;
 
 import java.util.Arrays;
 import java.util.UUID;
@@ -21,7 +21,7 @@ abstract public class IdUtils {
     public static String from(String from) {
         return FriendlyId.toFriendlyId(
             UUID.nameUUIDFromBytes(
-                HASH_FUNCTION.hashString(from, Charsets.UTF_8).asBytes()
+                HASH_FUNCTION.hashString(from, StandardCharsets.UTF_8).asBytes()
             )
         );
     }

core/src/main/java/io/kestra/plugin/core/debug/Return.java

@@ -25,7 +25,7 @@ import java.util.Optional;
 @Schema(
     title = "Return a value for debugging purposes.",
     description = """
-        This task is intended for troubleshooting. 
+        This task is intended for troubleshooting.
 
         It allows you to return templated values, inputs or outputs."""
 )

core/src/main/java/io/kestra/plugin/core/flow/ForEach.java

@@ -190,10 +190,10 @@ import java.util.Optional;
                                 message: |
                                   Full table name: {{parents[1].taskrun.value }}_{{parent.taskrun.value}}_{{taskrun.value}}
                                   Direct/current loop (months): {{taskrun.value}}
-                                  Value of loop one higher up (years): {{parents[0].taskrun.value}} 
+                                  Value of loop one higher up (years): {{parents[0].taskrun.value}}
                                   Further up (table types): {{parents[1].taskrun.value}}
                 """
-        ),        
+        ),
     }
 )
 public class ForEach extends Sequential implements FlowableTask<VoidOutput> {

core/src/test/java/io/kestra/core/http/client/HttpClientTest.java

@@ -1,7 +1,6 @@
 package io.kestra.core.http.client;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
-import com.google.common.base.Charsets;
 import com.google.common.net.HttpHeaders;
 import io.kestra.core.exceptions.IllegalVariableEvaluationException;
 import io.kestra.core.http.HttpRequest;
@@ -420,7 +419,7 @@ class HttpClientTest {
                             try (var inputStream = fileUpload.getInputStream()) {
                                 sink.next(new AbstractMap.SimpleEntry<>(
                                     fileUpload.getName(),
-                                    IOUtils.toString(inputStream, Charsets.UTF_8)
+                                    IOUtils.toString(inputStream, StandardCharsets.UTF_8)
                                 ));
                             }
                         } catch (IOException e) {

core/src/test/java/io/kestra/plugin/core/http/RequestTest.java

@@ -1,7 +1,6 @@
 package io.kestra.plugin.core.http;
 
 import com.devskiller.friendly_id.FriendlyId;
-import com.google.common.base.Charsets;
 import com.google.common.collect.ImmutableMap;
 import io.kestra.core.http.client.HttpClientRequestException;
 import io.kestra.core.http.client.HttpClientResponseException;
@@ -350,7 +349,7 @@ class RequestTest {
 
             Request.Output output = task.run(runContext);
 
-            assertThat(output.getBody(), is("world > " + IOUtils.toString(new FileInputStream(file), Charsets.UTF_8)));
+            assertThat(output.getBody(), is("world > " + IOUtils.toString(new FileInputStream(file), StandardCharsets.UTF_8)));
             assertThat(output.getCode(), is(200));
         }
     }
@@ -384,7 +383,7 @@ class RequestTest {
 
             Request.Output output = task.run(runContext);
 
-            assertThat(output.getBody(), is("world > " + IOUtils.toString(new FileInputStream(file), Charsets.UTF_8)));
+            assertThat(output.getBody(), is("world > " + IOUtils.toString(new FileInputStream(file), StandardCharsets.UTF_8)));
             assertThat(output.getCode(), is(200));
         }
     }

tests/src/main/java/io/kestra/core/utils/TestsUtils.java

@@ -1,7 +1,6 @@
 package io.kestra.core.utils;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
-import com.google.common.base.Charsets;
 import com.google.common.io.Files;
 import io.kestra.core.exceptions.DeserializationException;
 import io.kestra.core.models.conditions.ConditionContext;
@@ -13,7 +12,6 @@ import io.kestra.core.models.flows.State;
 import io.kestra.core.models.tasks.Task;
 import io.kestra.core.models.triggers.AbstractTrigger;
 import io.kestra.core.models.triggers.Trigger;
-import io.kestra.core.models.triggers.TriggerContext;
 import io.kestra.core.queues.QueueInterface;
 import io.kestra.core.repositories.LocalFlowRepositoryLoader;
 import io.kestra.core.runners.DefaultRunContext;
@@ -26,6 +24,7 @@ import java.io.File;
 import java.io.IOException;
 import java.net.URISyntaxException;
 import java.net.URL;
+import java.nio.charset.StandardCharsets;
 import java.time.Duration;
 import java.time.ZonedDateTime;
 import java.util.*;
@@ -44,7 +43,7 @@ abstract public class TestsUtils {
         URL resource = TestsUtils.class.getClassLoader().getResource(path);
         assert resource != null;
 
-        String read = Files.asCharSource(new File(resource.getFile()), Charsets.UTF_8).read();
+        String read = Files.asCharSource(new File(resource.getFile()), StandardCharsets.UTF_8).read();
 
         return mapper.readValue(read, cls);
     }

webserver/src/main/java/io/kestra/webserver/controllers/api/StaticFilter.java

@@ -60,7 +60,7 @@ public class StaticFilter implements HttpServerFilter {
                                 .filter(n -> n.getFile().getAbsoluteFile().toString().endsWith("ui/index.html"))
                                 .map(throwFunction(n -> IOUtils.toString(
                                     Objects.requireNonNull(StaticFilter.class.getClassLoader().getResourceAsStream("ui/index.html")),
-                                    Charsets.UTF_8
+                                    StandardCharsets.UTF_8
                                 )))
                         )
                         .filter(Optional::isPresent)