Breaking the exception cycle

releaser-core/src/main/java/releaser/internal/sagan/SaganUpdater.java

@@ -64,13 +64,16 @@ public class SaganUpdater {
 				originalVersion, currentVersion, projects);
 		if (updateReleaseException == null) {
 			log.info("Updating Sagan releases with \n\n{}", update);
-			Project project = this.saganClient.updateRelease(currentVersion.projectName,
-					Collections.singletonList(update));
+			try {
+				Project project = this.saganClient.updateRelease(
+						currentVersion.projectName, Collections.singletonList(update));
 				Optional<ProjectVersion> projectVersion = latestVersion(currentVersion,
 						project);
-			log.info("Found the following latest project version [{}]", projectVersion);
+				log.info("Found the following latest project version [{}]",
+						projectVersion);
 				boolean present = projectVersion.isPresent();
-			if (present && currentVersionNewerOrEqual(currentVersion, projectVersion)) {
+				if (present
+						&& currentVersionNewerOrEqual(currentVersion, projectVersion)) {
 					updateDocumentationIfNecessary(projectFile, project);
 				}
 				else {
@@ -82,6 +85,11 @@ public class SaganUpdater {
 					return ExecutionResult.skipped();
 				}
 			}
+			catch (Exception ex) {
+				log.warn("Exception occurred while trying to update sagan release", ex);
+				updateReleaseException = ex;
+			}
+		}
 		return updateReleaseException == null ? ExecutionResult.success()
 				: ExecutionResult.unstable(
 						new IllegalStateException(updateReleaseException.getMessage()));

releaser-core/src/main/java/releaser/internal/tech/ExecutionResult.java

@@ -19,9 +19,13 @@ package releaser.internal.tech;
 import java.io.Serializable;
 import java.util.LinkedList;
 import java.util.List;
+import java.util.stream.Collectors;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 
+import org.springframework.web.client.HttpClientErrorException;
+import org.springframework.web.client.HttpServerErrorException;
+
 /**
  * Task execution result. Contains a list of exceptions thrown while running the task.
  */
@@ -57,11 +61,22 @@ public class ExecutionResult implements Serializable {
 	}
 
 	public static ExecutionResult failure(Exception throwable) {
-		return new ExecutionResult(throwable);
+		return new ExecutionResult(breakReferenceChain(throwable));
 	}
 
 	public static ExecutionResult failure(List<Exception> throwables) {
-		return new ExecutionResult(throwables);
+		return new ExecutionResult(throwables.stream()
+				.map(ExecutionResult::breakReferenceChain).collect(Collectors.toList()));
+	}
+
+	private static Exception breakReferenceChain(Exception cause) {
+		if (cause instanceof HttpServerErrorException
+				|| cause instanceof HttpClientErrorException) {
+			System.out.println("Breaking the reference chain. . . i think");
+			return new RuntimeException(
+					"[Breaking self reference chain] " + cause.toString());
+		}
+		return cause;
 	}
 
 	public static ExecutionResult unstable(Exception ex) {

releaser-spring/src/main/java/releaser/internal/spring/SpringBatchFlowRunner.java

@@ -49,6 +49,7 @@ import org.springframework.batch.core.JobParameters;
 import org.springframework.batch.core.Step;
 import org.springframework.batch.core.StepExecution;
 import org.springframework.batch.core.StepExecutionListener;
+import org.springframework.batch.core.UnexpectedJobExecutionException;
 import org.springframework.batch.core.configuration.annotation.JobBuilderFactory;
 import org.springframework.batch.core.configuration.annotation.StepBuilderFactory;
 import org.springframework.batch.core.job.builder.FlowBuilder;
@@ -423,7 +424,7 @@ class SpringBatchFlowRunner implements FlowRunner, Closeable {
 			List<Exception> thrownExceptions = exceptionsThrownBySteps(execution);
 			return new ExecutionResult(thrownExceptions);
 		}
-		catch (JobExecutionException ex) {
+		catch (JobExecutionException | UnexpectedJobExecutionException ex) {
 			return ExecutionResult.failure(ex);
 		}
 	}