Replace spotbugs by errorprone

build.gradle

@@ -1,5 +1,5 @@
 plugins {
-    alias libs.plugins.spotbugs
+    alias libs.plugins.errorprone
     alias libs.plugins.versions
     alias libs.plugins.dependencycheck
     alias libs.plugins.git.version
@@ -18,7 +18,7 @@ dependencyCheck {
 subprojects {
     apply plugin: "java"
     apply plugin: "eclipse"
-    apply plugin: "com.github.spotbugs"
+    apply plugin: 'net.ltgt.errorprone'
     apply plugin: 'com.github.ben-manes.versions'
 
     java {
@@ -39,6 +39,9 @@ subprojects {
 
     // Standard libraries added to all projects
     dependencies {
+        errorprone(libs.errorprone.core)
+        compileOnly libs.errorprone.annotations
+
         implementation libs.slf4j.api
 
         testImplementation libs.junit

cayenne/src/main/java/nl/sikken/bertrik/cayenne/CayenneMessage.java

@@ -25,18 +25,18 @@ public CayenneMessage() {
      */
     public CayenneMessage(ECayennePayloadFormat format) {
         switch (format) {
-        case DYNAMIC_SENSOR_PAYLOAD:
-        case PACKED_SENSOR_PAYLOAD:
-            break;
-        default:
-            throw new IllegalArgumentException("Payload format not supported: " + format);
+            case DYNAMIC_SENSOR_PAYLOAD:
+            case PACKED_SENSOR_PAYLOAD:
+                break;
+            default:
+                throw new IllegalArgumentException("Payload format not supported: " + format);
         }
         this.format = format;
     }
 
     /**
      * Parses the byte array into a cayenne message.
-     * 
+     *
      * @param data the raw data
      * @throws CayenneException in case of a parsing problem
      */
@@ -46,23 +46,23 @@ public void parse(byte[] data) throws CayenneException {
         while (bb.hasRemaining()) {
             CayenneItem item;
             switch (format) {
-            case DYNAMIC_SENSOR_PAYLOAD:
-                item = CayenneItem.parse(bb);
-                break;
-            case PACKED_SENSOR_PAYLOAD:
-                item = CayenneItem.parsePacked(bb, channel);
-                channel++;
-                break;
-            default:
-                throw new IllegalStateException("Unsupported cayenne payload: " + format);
+                case DYNAMIC_SENSOR_PAYLOAD:
+                    item = CayenneItem.parse(bb);
+                    break;
+                case PACKED_SENSOR_PAYLOAD:
+                    item = CayenneItem.parsePacked(bb, channel);
+                    channel++;
+                    break;
+                default:
+                    throw new IllegalStateException("Unsupported cayenne payload: " + format);
             }
             add(item);
         }
     }
 
     /**
      * Adds a cayenne measurement item to the message.
-     * 
+     *
      * @param item the item to add
      */
     public void add(CayenneItem item) {
@@ -71,7 +71,7 @@ public void add(CayenneItem item) {
 
     /**
      * Encodes the cayenne message into a byte array.
-     * 
+     *
      * @param maxSize the maximum size of the cayenne message
      * @return the byte array.
      * @throws CayenneException in case something went wrong during encoding (e.g.
@@ -86,17 +86,16 @@ public byte[] encode(int maxSize) throws CayenneException {
     }
 
     /**
-     * @return an immutable list of measurement items in the order it appears in the
-     *         raw data
+     * Returns a list of measurement items in the order it appears in the raw data
      */
     public List<CayenneItem> getItems() {
         return List.copyOf(items);
     }
 
     /**
      * Finds an item by type and channel.
-     * 
-     * @param type the desired type
+     *
+     * @param type    the desired type
      * @param channel the desired channel
      * @return the item, or null if it does not exist
      */
@@ -106,7 +105,7 @@ public CayenneItem find(ECayenneItem type, int channel) {
 
     /**
      * Finds an item by type.
-     * 
+     *
      * @param type the desired type
      * @return the item, or null if it does not exist
      */
@@ -116,7 +115,7 @@ public CayenneItem ofType(ECayenneItem type) {
 
     /**
      * Finds an item by channel.
-     * 
+     *
      * @param channel the desired channel
      * @return the item, or null if it does not exist
      */

cayenne/src/main/java/nl/sikken/bertrik/cayenne/ECayenneItem.java

@@ -1,15 +1,15 @@
 package nl.sikken.bertrik.cayenne;
 
-import java.nio.ByteBuffer;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.stream.Stream;
-
 import nl.sikken.bertrik.cayenne.formatter.FloatFormatter;
 import nl.sikken.bertrik.cayenne.formatter.GpsFormatter;
 import nl.sikken.bertrik.cayenne.formatter.IFormatter;
 import nl.sikken.bertrik.cayenne.formatter.IntegerFormatter;
 
+import java.nio.ByteBuffer;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.stream.Stream;
+
 /**
  * Enumeration of possible Cayenne item types.
  */
@@ -53,7 +53,6 @@ public enum ECayenneItem {
      * 
      * @param type the type code
      * @return the enum, or null if not found
-     * @throws CayenneException
      */
     public static ECayenneItem parse(int type) throws CayenneException {
         ECayenneItem item = LOOKUP.get(type);

cayenne/src/main/java/nl/sikken/bertrik/cayenne/ECayennePayloadFormat.java

@@ -16,7 +16,7 @@ public enum ECayennePayloadFormat {
     SENSOR_PERIOD_CONFIGURATION(13), //
     SENSOR_ENABLE_CONFIGURATION(14); //
 
-    private int port;
+    private final int port;
 
     ECayennePayloadFormat(int port) {
         this.port = port;

cayenne/src/main/java/nl/sikken/bertrik/cayenne/formatter/GpsFormatter.java

@@ -2,6 +2,7 @@
 
 import java.nio.ByteBuffer;
 import java.util.Locale;
+import java.util.stream.Stream;
 
 /**
  * Formatter for cayenne items which represent a GPS position.
@@ -16,13 +17,14 @@ public Double[] parse(ByteBuffer bb) {
         double lat = LAT_LON_SCALE * getValue(bb, 3, true);
         double lon = LAT_LON_SCALE * getValue(bb, 3, true);
         double alt = ALT_SCALE * getValue(bb, 3, true);
-        return new Double[] { lat, lon, alt };
+        return new Double[]{lat, lon, alt};
     }
 
     @Override
-    public String[] format(Number[] values) {
-        return new String[] { String.format(Locale.ROOT, "%.4f", values[0]),
-                String.format(Locale.ROOT, "%.4f", values[1]), String.format(Locale.ROOT, "%.2f", values[2]) };
+    public String[] format(Number[] numbers) {
+        double[] values = Stream.of(numbers).mapToDouble(Number::doubleValue).toArray();
+        return new String[]{String.format(Locale.ROOT, "%.4f", values[0]),
+                String.format(Locale.ROOT, "%.4f", values[1]), String.format(Locale.ROOT, "%.2f", values[2])};
     }
 
     @Override

cayenne/src/main/java/nl/sikken/bertrik/cayenne/formatter/IFormatter.java

@@ -1,11 +1,14 @@
 package nl.sikken.bertrik.cayenne.formatter;
 
+import com.google.errorprone.annotations.Immutable;
+
 import java.nio.ByteBuffer;
 
 /**
  * Interface for cayenne data structures that can be formatted as an array of
  * strings.
  */
+@Immutable
 public interface IFormatter {
 
     /**

cayenne/src/test/java/nl/sikken/bertrik/cayenne/CayenneMessageTest.java

@@ -225,8 +225,6 @@ public void testDigitalInput() throws CayenneException {
 
     /**
      * Verifies encoding/decoding of a presence value (e.g. number of satellites)
-     * 
-     * @throws CayenneException
      */
     @Test
     public void testPresence() throws CayenneException {

gradle/libs.versions.toml

@@ -3,17 +3,17 @@ jackson = "2.17.2"
 jersey = "3.1.8"
 retrofit = "2.11.0"
 slf4j = "2.0.16"
-spotbugs = "4.8.6"
+errorprone = "2.31.0"
 
 [libraries]
-slf4j-api = { module = "org.slf4j:slf4j-api", version.ref="slf4j" }
-slf4j-reload4j = { module = "org.slf4j:slf4j-reload4j", version.ref="slf4j" }
+errorprone_annotations = { module = "com.google.errorprone:error_prone_annotations", version.ref = "errorprone" }
+errorprone_core = { module = "com.google.errorprone:error_prone_core", version.ref = "errorprone" }
 
-jackson-databind = {module = "com.fasterxml.jackson.core:jackson-databind", version.ref="jackson" }
-jackson-dataformat-yaml = {module = "com.fasterxml.jackson.dataformat:jackson-dataformat-yaml", version.ref="jackson" }
+slf4j-api = { module = "org.slf4j:slf4j-api", version.ref = "slf4j" }
+slf4j-reload4j = { module = "org.slf4j:slf4j-reload4j", version.ref = "slf4j" }
 
-spotbugs = { module = "com.github.spotbugs:spotbugs", version.ref = "spotbugs" }
-spotbugs-annotations = { module = "com.github.spotbugs:spotbugs-annotations", version.ref = "spotbugs" }
+jackson-databind = { module = "com.fasterxml.jackson.core:jackson-databind", version.ref = "jackson" }
+jackson-dataformat-yaml = { module = "com.fasterxml.jackson.dataformat:jackson-dataformat-yaml", version.ref = "jackson" }
 
 retrofit = { module = "com.squareup.retrofit2:retrofit", version.ref = "retrofit" }
 retrofit-converter-jackson = { module = "com.squareup.retrofit2:converter-jackson", version.ref = "retrofit" }
@@ -26,22 +26,21 @@ paho-client-mqttv3 = "org.eclipse.paho:org.eclipse.paho.client.mqttv3:1.2.5"
 
 jakarta-ws-rs-api = "jakarta.ws.rs:jakarta.ws.rs-api:4.0.0"
 
-jersey-jetty = { module = "org.glassfish.jersey.containers:jersey-container-jetty-http", version.ref="jersey" }
-jersey-server = { module = "org.glassfish.jersey.core:jersey-server", version.ref="jersey" }
-jersey-inject = { module = "org.glassfish.jersey.inject:jersey-hk2", version.ref="jersey" }
-jersey-jackson = { module = "org.glassfish.jersey.media:jersey-media-json-jackson", version.ref="jersey" }
+jersey-jetty = { module = "org.glassfish.jersey.containers:jersey-container-jetty-http", version.ref = "jersey" }
+jersey-server = { module = "org.glassfish.jersey.core:jersey-server", version.ref = "jersey" }
+jersey-inject = { module = "org.glassfish.jersey.inject:jersey-hk2", version.ref = "jersey" }
+jersey-jackson = { module = "org.glassfish.jersey.media:jersey-media-json-jackson", version.ref = "jersey" }
 
-mockito-core = "org.mockito:mockito-core:5.12.0"
+mockito-core = "org.mockito:mockito-core:5.13.0"
 
 [bundles]
 jackson = ["jackson-databind", "jackson-dataformat-yaml"]
 retrofit = ["retrofit", "retrofit-converter-jackson", "retrofit-converter-scalars"]
 jersey = ["jakarta-ws-rs-api", "jersey-jetty", "jersey-server", "jersey-inject", "jersey-jackson"]
 
 [plugins]
+errorprone = "net.ltgt.errorprone:4.0.1"
 versions = "com.github.ben-manes.versions:0.51.0"
-spotbugs = "com.github.spotbugs:5.0.14"
 dependencycheck = "org.owasp.dependencycheck:8.4.3"
-version-catalog-update = "nl.littlerobots.version-catalog-update:0.8.0"
 git-version = "com.palantir.git-version:3.1.0"
 

sensor-data-bridge/build.gradle

@@ -25,8 +25,6 @@ dependencies {
     // REST client
     implementation libs.bundles.retrofit
 
-    compileOnly libs.spotbugs.annotations
-
     testImplementation libs.retrofit.mock
 }
 

sensor-data-bridge/src/main/java/nl/bertriksikken/gls/GeoLocationRequest.java

@@ -6,6 +6,7 @@
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 
+@SuppressWarnings("UnusedVariable")
 public final class GeoLocationRequest {
 
     @JsonProperty("considerIp")
@@ -19,6 +20,8 @@ public GeoLocationRequest(boolean considerIp) {
     }
 
     /**
+     * Adds an SSID.
+     *
      * @param mac            the 6-byte mac address of the access point
      * @param signalStrength signal strength in dBm
      * @param channel        the WiFi channel

sensor-data-bridge/src/main/java/nl/bertriksikken/gls/GeoLocationService.java

@@ -49,7 +49,6 @@ public static GeoLocationService create(GeoLocationConfig config) {
      * 
      * @param request containing the WiFi AP information
      * @return the response with the result
-     * @throws IOException
      */
     public GeoLocationResponse geoLocate(GeoLocationRequest request) throws IOException {
         Response<GeoLocationResponse> response = restClient.geoLocate(key, request).execute();

sensor-data-bridge/src/main/java/nl/bertriksikken/helium/HeliumUplinkMessage.java

@@ -6,9 +6,6 @@
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonProperty;
 
-import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
-
-@SuppressFBWarnings("URF_UNREAD_FIELD")
 @JsonIgnoreProperties(ignoreUnknown = true)
 public final class HeliumUplinkMessage {
 

sensor-data-bridge/src/main/java/nl/bertriksikken/loraforwarder/CommandHandler.java

@@ -1,15 +1,5 @@
 package nl.bertriksikken.loraforwarder;
 
-import java.io.IOException;
-import java.nio.ByteBuffer;
-import java.nio.ByteOrder;
-import java.util.Arrays;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import nl.bertriksikken.gls.GeoLocationRequest;
 import nl.bertriksikken.gls.GeoLocationResponse;
 import nl.bertriksikken.gls.GeoLocationService;
@@ -18,6 +8,15 @@
 import nl.bertriksikken.ttn.enddevice.EndDevice;
 import nl.bertriksikken.ttn.enddevice.EndDeviceRegistry;
 import nl.bertriksikken.ttn.enddevice.Location;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.List;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
 
 /**
  * Handles commands and response from LoRaWAN devices.
@@ -47,20 +46,18 @@ public void stop() {
 
     /**
      * Test message on port 100: 00 9C 1C 12 F6 EB C0 D3 01 9C 1C 12 F6 F5 42 C9 01
-     * 
-     * @param uplink
      */
     void processResponse(TtnUplinkMessage uplink) {
         ByteBuffer bb = ByteBuffer.wrap(uplink.getRawPayload()).order(ByteOrder.BIG_ENDIAN);
 
         int cmd = bb.get() & 0xFF;
         switch (cmd) {
-        case 0:
-            executor.execute(new CatchingRunnable(LOG, () -> handleWifiLocalisation(bb, uplink.getDevId())));
-            break;
-        default:
-            LOG.warn("Unhandled command {}", cmd);
-            break;
+            case 0:
+                executor.execute(new CatchingRunnable(LOG, () -> handleWifiLocalisation(bb, uplink.getDevId())));
+                break;
+            default:
+                LOG.warn("Unhandled command {}", cmd);
+                break;
         }
     }
 
@@ -80,7 +77,7 @@ void handleWifiLocalisation(ByteBuffer bb, String devId) {
                 EndDevice endDevice = endDeviceRegistry.buildEndDevice(devId);
                 Location location = new Location(response.getLatitude(), response.getLongitude());
                 endDevice.setLocation(EndDevice.LOCATION_USER, location);
-                endDeviceRegistry.updateEndDevice(endDevice, Arrays.asList("locations"));
+                endDeviceRegistry.updateEndDevice(endDevice, List.of("locations"));
             }
         } catch (IOException e) {
             LOG.warn("Caught IOException", e);