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This code does not violate rule LCK04-J. Do not synchronize on a collection view if the backing collection is accessible because, while it does synchronize on a collection view (the synchronizedList), the backing collection is inaccessible and consequently cannot be modified by any code.
Note that this compliant solution does not actually use the synchronization offered by Collections.synchronizedList(). If no other code in this solution used it, it could be removed, with ips being a direct ArrayList.
Noncompliant Code Example (synchronizedMap())
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<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="9166b19a3ac6d275-2748fff7-422540cb-941dae9f-41cdd2094e960a7af57af8ba"><ac:plain-text-body><![CDATA[ | [[API 2006 | AA. Bibliography#API 06]] |
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<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="d3c9158ce4525697-091a9aab-4a854a91-8880b412-5c0eed8fec81572b8d8bde66"><ac:plain-text-body><![CDATA[ | [[Goetz 2006 | AA. Bibliography#Goetz 06]] | Section 4.4.1 "Client-side Locking" | ]]></ac:plain-text-body></ac:structured-macro> |
| Section 5.2.1, "ConcurrentHashMap" | |||
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="8f6a5beb2f86b0f9-31131811-40d34a95-b90a9349-1b37deebc69ea290a15b0eaf"><ac:plain-text-body><![CDATA[ | [[JavaThreads 2004 | AA. Bibliography#JavaThreads 04]] | Section 8.2, "Synchronization and Collection Classes" | ]]></ac:plain-text-body></ac:structured-macro> |
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="13079ceb3cc49a7e-e21a6821-47974e2d-a527a6d8-491e874bd466c7545a63b800"><ac:plain-text-body><![CDATA[ | [[Lee 2009 | AA. Bibliography#Lee 09]] | "Map & Compound Operation" | ]]></ac:plain-text-body></ac:structured-macro> |
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