Use javax Nullable/Nonnull annotations instead of Jetbrains ones

Author: nikita-tkachenko-datadog

dd-java-agent/agent-ci-visibility/src/main/java/datadog/trace/civisibility/coverage/percentage/JacocoCoverageCalculator.java

@@ -47,7 +47,6 @@
 import org.jacoco.report.InputStreamSourceFileLocator;
 import org.jacoco.report.html.HTMLFormatter;
 import org.jacoco.report.xml.XMLFormatter;
-import org.jetbrains.annotations.NotNull;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -319,7 +318,6 @@ private void dumpCoverageReport(IBundleCoverage coverageBundle, File reportFolde
     }
   }
 
-  @NotNull
   private ISourceFileLocator createSourceFileLocator() {
     return repoRoot != null
         ? new RepoIndexFileLocator(repoIndexProvider.getIndex(), repoRoot)

dd-java-agent/agent-ci-visibility/src/main/java/datadog/trace/civisibility/events/NoOpTestEventsHandler.java

@@ -15,7 +15,6 @@
 import java.util.Collection;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
-import org.jetbrains.annotations.NotNull;
 
 public class NoOpTestEventsHandler<SuiteKey, TestKey>
     implements TestEventsHandler<SuiteKey, TestKey> {
@@ -99,7 +98,7 @@ public SkipReason skipReason(TestIdentifier test) {
     return null;
   }
 
-  @NotNull
+  @Nonnull
   @Override
   public TestExecutionPolicy executionPolicy(
       TestIdentifier test, TestSourceData source, Collection<String> testTags) {

dd-java-agent/agent-ci-visibility/src/main/java/datadog/trace/civisibility/git/tree/NoOpGitClient.java

@@ -5,8 +5,8 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
 
 public class NoOpGitClient implements GitClient {
 
@@ -54,7 +54,7 @@ public String getCurrentBranch() {
     return null;
   }
 
-  @NotNull
+  @Nonnull
   @Override
   public List<String> getTags(String commit) {
     return Collections.emptyList();
@@ -108,13 +108,13 @@ public String getCommitterDate(String commit) {
     return null;
   }
 
-  @NotNull
+  @Nonnull
   @Override
   public List<String> getLatestCommits() {
     return Collections.emptyList();
   }
 
-  @NotNull
+  @Nonnull
   @Override
   public List<String> getObjects(
       Collection<String> commitsToSkip, Collection<String> commitsToInclude) {