Fix ClassInitializationDeadlock

atlasdb-cassandra-integration-tests/src/test/java/com/palantir/atlasdb/keyvalue/cassandra/CassandraKvsSerializableTransactionTest.java

@@ -20,8 +20,8 @@
 import com.palantir.atlasdb.containers.CassandraResource;
 import com.palantir.atlasdb.sweep.metrics.TargetedSweepMetrics;
 import com.palantir.atlasdb.sweep.queue.MultiTableSweepQueueWriter;
+import com.palantir.atlasdb.sweep.queue.ReadBatchingRuntimeContexts;
 import com.palantir.atlasdb.sweep.queue.SweepQueue;
-import com.palantir.atlasdb.sweep.queue.SweepQueueReader.ReadBatchingRuntimeContext;
 import com.palantir.atlasdb.sweep.queue.TargetedSweeper;
 import com.palantir.atlasdb.transaction.api.Transaction;
 import com.palantir.atlasdb.transaction.impl.AbstractSerializableTransactionTest;
@@ -74,7 +74,7 @@ protected MultiTableSweepQueueWriter getSweepQueueWriterInitialized() {
                 keyValueService,
                 timelockService,
                 () -> 128,
-                ReadBatchingRuntimeContext.DEFAULT);
+                ReadBatchingRuntimeContexts.DEFAULT);
     }
 
     @Override

atlasdb-impl-shared/src/main/java/com/palantir/atlasdb/sweep/queue/ReadBatchingRuntimeContexts.java

@@ -0,0 +1,28 @@
+/*
+ * (c) Copyright 2021 Palantir Technologies Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.palantir.atlasdb.sweep.queue;
+
+import com.palantir.atlasdb.sweep.queue.SweepQueueReader.ReadBatchingRuntimeContext;
+
+public final class ReadBatchingRuntimeContexts {
+    private ReadBatchingRuntimeContexts() {}
+
+    public static final ReadBatchingRuntimeContext DEFAULT = ReadBatchingRuntimeContext.builder()
+            .maximumPartitions(() -> 1)
+            .cellsThreshold(() -> SweepQueueUtils.SWEEP_BATCH_SIZE)
+            .build();
+}

atlasdb-impl-shared/src/main/java/com/palantir/atlasdb/sweep/queue/SweepQueueReader.java

@@ -54,7 +54,9 @@ SweepBatchWithPartitionInfo getNextBatchToSweep(ShardAndStrategy shardStrategy,
     }
 
     @Immutable
+    @SuppressWarnings("ClassInitializationDeadlock")
     public interface ReadBatchingRuntimeContext {
+        @Deprecated
         ReadBatchingRuntimeContext DEFAULT = ReadBatchingRuntimeContext.builder()
                 .maximumPartitions(() -> 1)
                 .cellsThreshold(() -> SweepQueueUtils.SWEEP_BATCH_SIZE)