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Thomas Wolf 0f442d7083 Use Map interface instead of ConcurrentHashMap class On Android, the co-variant override of ConcurrentHashMap.keySet() introduced in Java 8 was undone. [1] If compiled Java code calls that co-variant override directly, one gets a NoSuchMethodError exception at run-time on Android. Making the code call that method via Map.keySet() side-steps this problem. This is similar to bug 496262, where the same problem cropped up when compiling with Java 8 against a Java 7 target, but here we cannot use bootclasspath. We build against Java 8, not against the Android version of it. Recent Android versions should have some bytecode "magic" that adds the co-variant override in bytecode (see the commit referenced in [1]), but on older Android version this problem may still occur. (Or perhaps the "magic" is ineffective...) There are two pull requests on Github for this problem, both from 2020, [2][3] while the Android commit [1] is from March 2018. Apparently people still occasionally run into this problem in the wild. [1] `0e8b937ded/ojluni/src/main/java/java/util/concurrent/ConcurrentHashMap.java (1244)` [2] https://github.com/eclipse/jgit/pull/104 [3] https://github.com/eclipse/jgit/pull/100 Change-Id: I7c07e0cc59871cb7fe60795e22867827fa9c2458 Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>		3 jaren geleden
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annotations	Update EDL 1.0 license headers to new short SPDX compliant format	4 jaren geleden
api	Use Map interface instead of ConcurrentHashMap class	3 jaren geleden
attributes	Use Map interface instead of ConcurrentHashMap class	3 jaren geleden
blame	Update EDL 1.0 license headers to new short SPDX compliant format	4 jaren geleden
diff	DiffFormatter: correctly deal with tracked files in ignored folders	3 jaren geleden
dircache	Fix NPE in DirCacheCheckout	3 jaren geleden
errors	Merge branch 'stable-5.6'	4 jaren geleden
events	Use Map interface instead of ConcurrentHashMap class	3 jaren geleden
fnmatch	Fix ProtectedMembersInFinalClass warning flagged by error prone	4 jaren geleden
gitrepo	ErrorProne: Enable and fix UnusedException check	4 jaren geleden
hooks	Remove use of org.bouncycastle.util.io.TeeOutputStream	4 jaren geleden
ignore	[spotbugs] Silence NP_BOOLEAN_RETURN_NULL in IgnoreNode#checkIgnored	3 jaren geleden
internal	[spotbugs] Fix FileReftableStack#equals to check for null	3 jaren geleden
lib	Use Map interface instead of ConcurrentHashMap class	3 jaren geleden
logging	Fix bug in PerformanceLogContext	3 jaren geleden
merge	ResolveMerger: do not content-merge gitlinks on del/mod conflicts	3 jaren geleden
nls	Use Map interface instead of ConcurrentHashMap class	3 jaren geleden
notes	Update EDL 1.0 license headers to new short SPDX compliant format	4 jaren geleden
patch	Merge branch 'stable-5.6'	4 jaren geleden
revplot	Update EDL 1.0 license headers to new short SPDX compliant format	4 jaren geleden
revwalk	Enable GpgSigner to also sign tags	3 jaren geleden
storage	Make Javadoc consistent for PackStatistics fields	3 jaren geleden
submodule	Ensure .gitmodules is loaded when accessing submodule name	3 jaren geleden
transport	FetchProcess#execute: fix formatting	3 jaren geleden
treewalk	[spotbugs] Fix potential NPE in WorkingTreeIterator#isModified	3 jaren geleden
util	[spotbugs] Fix incorrect lazy initialization in SystemReader	3 jaren geleden