asmhatre
a9867c0423
A Spring Boot 4.1.1 module whose test suite is the evidence for the article: 20 tests producing 22 transcripts under docs/output/, plus 12 documentation chapters. Findings the build pins: - @EnableCaching has no exposeProxy attribute; the widely-copied @EnableCaching(exposeProxy = true) does not compile. - Two methods sharing a cache name and an argument type share a key space, and one silently serves the other's answers. - The documented cache-provider detection order does not match CacheType's enum order in 4.1.1: COUCHBASE before INFINISPAN, and CACHE2K before CAFFEINE. - beforeInvocation = true is NOT deferred by TransactionAwareCacheManagerProxy on 7.0.9 - doEvict picks evictIfPresent, which the decorator does not intercept. - Four of five invalid declarations start a clean context and throw at the first call. - Caffeine on the classpath silently displaces the simple provider.
32 lines
1.9 KiB
Bash
Executable File
32 lines
1.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Disassembles the two methods that decide whether a beforeInvocation=true eviction is deferred.
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set -euo pipefail
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cd "$(dirname "$0")/.."
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M2="${HOME}/.m2/repository/org/springframework"
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V=$(mvn -B -q help:evaluate -Dexpression=spring-framework.version -DforceStdout 2>/dev/null | tail -1)
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CTX="${M2}/spring-context/${V}/spring-context-${V}.jar"
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CS="${M2}/spring-context-support/${V}/spring-context-support-${V}.jar"
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{
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echo "# Why beforeInvocation=true is not deferred by TransactionAwareCacheManagerProxy"
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echo
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echo "\$ javap -c -p org.springframework.cache.interceptor.AbstractCacheInvoker # spring-context-${V}.jar"
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javap -c -p -cp "$CTX" org.springframework.cache.interceptor.AbstractCacheInvoker \
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| grep -v '^Picked up' | awk '/protected void doEvict/,/^$/' | head -14
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echo
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echo "\$ javap -c -p org.springframework.cache.transaction.TransactionAwareCacheDecorator # spring-context-support-${V}.jar"
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javap -c -p -cp "$CS" org.springframework.cache.transaction.TransactionAwareCacheDecorator \
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| grep -v '^Picked up' | awk '/public void evict\(java.lang.Object\)/,/^$/' | head -14
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javap -c -p -cp "$CS" org.springframework.cache.transaction.TransactionAwareCacheDecorator \
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| grep -v '^Picked up' | awk '/public boolean evictIfPresent/,/^$/' | head -8
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echo
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echo "doEvict(cache, key, true) -> Cache.evictIfPresent -> straight to the target cache"
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echo "doEvict(cache, key, false) -> Cache.evict -> registerSynchronization, runs after commit"
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echo
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echo "spring-framework#23192 reported beforeInvocation=true being swallowed by the"
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echo "transaction-aware decorator. On ${V} it is not: the immediate path uses a method"
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echo "the decorator does not intercept. Note also that the decorator ships in"
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echo "spring-context-support, not spring-context."
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} > docs/output/22-decorator-bytecode.txt
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echo "wrote docs/output/22-decorator-bytecode.txt"
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