#5573

Committed 03 Jul 2026 08:24PM UTC coverage: 98.975% (-1.0%) from 99.988%

Build # #5573

Build Type

push

github

Committed by

ben-manes

Commit Message

Bound per-cycle expiration to amortize idle-recovery spikes

Cap expireAfterAccessEntries/expireAfterWriteEntries at
EXPIRATION_THRESHOLD evictions per maintenance cycle, then re-arm
via PROCESSING_TO_REQUIRED so the backlog drains across cycles.
Mirrors drainWriteBuffer's cap; keeps a large expired population
from stalling a writer-assist under evictionLock. The validation
subject pumps cleanUp until IDLE to drain the re-armed backlog.

Coverage Stats

3996 of 4072 branches covered (98.13%)

16 of 16 new or added lines in 1 file covered. (100.0%)

84 existing lines in 13 files now uncovered.

8205 of 8290 relevant lines covered (98.97%)

0.99 hits per line

Source File
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31.43

/caffeine/src/main/java/com/github/benmanes/caffeine/cache/stats/GuardedStatsCounter.java

/*
 * Copyright 2015 Ben Manes. 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.github.benmanes.caffeine.cache.stats;

import static java.util.Objects.requireNonNull;

import java.lang.System.Logger;
import java.lang.System.Logger.Level;

import com.github.benmanes.caffeine.cache.RemovalCause;

/**
 * A {@link StatsCounter} implementation that suppresses and logs any exception thrown by the
 * delegate <code>statsCounter</code>.
 *
 * @author ben.manes@gmail.com (Ben Manes)
 */
final class GuardedStatsCounter implements StatsCounter {
  static final Logger logger = System.getLogger(GuardedStatsCounter.class.getName());

  final StatsCounter delegate;

  GuardedStatsCounter(StatsCounter delegate) {
    this.delegate = requireNonNull(delegate);
  }

  @Override
  public void recordHits(int count) {
    try {
      delegate.recordHits(count);
    } catch (Throwable t) {
      logger.log(Level.WARNING, "Exception thrown by stats counter", t);
    }
  }

  @Override
  public void recordMisses(int count) {
    try {
      delegate.recordMisses(count);
    } catch (Throwable t) {
      logger.log(Level.WARNING, "Exception thrown by stats counter", t);
    }
  }

  @Override
  public void recordLoadSuccess(long loadTime) {
    try {
      delegate.recordLoadSuccess(loadTime);
    } catch (Throwable t) {
      logger.log(Level.WARNING, "Exception thrown by stats counter", t);
    }
  }

  @Override
  public void recordLoadFailure(long loadTime) {
    try {
      delegate.recordLoadFailure(loadTime);
    } catch (Throwable t) {
      logger.log(Level.WARNING, "Exception thrown by stats counter", t);
    }
  }

  @Override
  public void recordEviction(int weight, RemovalCause cause) {
    requireNonNull(cause);
    try {
      delegate.recordEviction(weight, cause);
    } catch (Throwable t) {
      logger.log(Level.WARNING, "Exception thrown by stats counter", t);
    }
  }

  @Override
  public CacheStats snapshot() {
    try {
      return delegate.snapshot();
    } catch (Throwable t) {
      logger.log(Level.WARNING, "Exception thrown by stats counter", t);
      return CacheStats.empty();
    }
  }

  @Override
  public String toString() {
    return delegate.toString();
  }
}

1	/*
2	* Copyright 2015 Ben Manes. All Rights Reserved.
3	*
4	* Licensed under the Apache License, Version 2.0 (the "License");
5	* you may not use this file except in compliance with the License.
6	* You may obtain a copy of the License at
7	*
8	* http://www.apache.org/licenses/LICENSE-2.0
9	*
10	* Unless required by applicable law or agreed to in writing, software
11	* distributed under the License is distributed on an "AS IS" BASIS,
12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	* See the License for the specific language governing permissions and
14	* limitations under the License.
15	*/
16	package com.github.benmanes.caffeine.cache.stats;
17
18	import static java.util.Objects.requireNonNull;
19
20	import java.lang.System.Logger;
21	import java.lang.System.Logger.Level;
22
23	import com.github.benmanes.caffeine.cache.RemovalCause;
24
25	/**
26	* A {@link StatsCounter} implementation that suppresses and logs any exception thrown by the
27	* delegate <code>statsCounter</code>.
28	*
29	* @author ben.manes@gmail.com (Ben Manes)
30	*/
31	final class GuardedStatsCounter implements StatsCounter {
32	static final Logger logger = System.getLogger(GuardedStatsCounter.class.getName());	1✔
33
34	final StatsCounter delegate;
35
36	GuardedStatsCounter(StatsCounter delegate) {	1✔
37	this.delegate = requireNonNull(delegate);	1✔
38	}	1✔
39
40	@Override
41	public void recordHits(int count) {
42	try {
43	delegate.recordHits(count);	1✔
UNCOV 44	} catch (Throwable t) {	×
UNCOV 45	logger.log(Level.WARNING, "Exception thrown by stats counter", t);	×
46	}	1✔
47	}	1✔
48
49	@Override
50	public void recordMisses(int count) {
51	try {
UNCOV 52	delegate.recordMisses(count);	×
UNCOV 53	} catch (Throwable t) {	×
UNCOV 54	logger.log(Level.WARNING, "Exception thrown by stats counter", t);	×
UNCOV 55	}	×
UNCOV 56	}	×
57
58	@Override
59	public void recordLoadSuccess(long loadTime) {
60	try {
UNCOV 61	delegate.recordLoadSuccess(loadTime);	×
UNCOV 62	} catch (Throwable t) {	×
UNCOV 63	logger.log(Level.WARNING, "Exception thrown by stats counter", t);	×
UNCOV 64	}	×
UNCOV 65	}	×
66
67	@Override
68	public void recordLoadFailure(long loadTime) {
69	try {
UNCOV 70	delegate.recordLoadFailure(loadTime);	×
UNCOV 71	} catch (Throwable t) {	×
UNCOV 72	logger.log(Level.WARNING, "Exception thrown by stats counter", t);	×
UNCOV 73	}	×
UNCOV 74	}	×
75
76	@Override
77	public void recordEviction(int weight, RemovalCause cause) {
78	requireNonNull(cause);	1✔
79	try {
80	delegate.recordEviction(weight, cause);	1✔
UNCOV 81	} catch (Throwable t) {	×
UNCOV 82	logger.log(Level.WARNING, "Exception thrown by stats counter", t);	×
83	}	1✔
84	}	1✔
85
86	@Override
87	public CacheStats snapshot() {
88	try {
UNCOV 89	return delegate.snapshot();	×
UNCOV 90	} catch (Throwable t) {	×
UNCOV 91	logger.log(Level.WARNING, "Exception thrown by stats counter", t);	×
UNCOV 92	return CacheStats.empty();	×
93	}
94	}
95
96	@Override
97	public String toString() {
UNCOV 98	return delegate.toString();	×
99	}
100	}

ben-manes / caffeine / #5573

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