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Persimmonium has asked 35 questions and find answers to 37 problems.

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Persimmonium questions

Spring boot: is there a way to show the POM version number in some endpoint easily?
why would an hprof file have a much smaller size than the amount of memory given to the jvm
evaluation of a java thread dump
jvm: is it possible to find out process is shutting down due to an OOM while in the shutdown hook?
way to initialize a javabean to random values
reusable condition/expression classes
How to detect a new value was added to an enum and is not handled in a switch
-XX:+HeapDumpOnOutOfMemoryError not creating hprof file in OOM
is memory allocated in JNA (or JNI) by the C code limited by jvm (param -Xmx or architecture 32/64)
Why does Android use JUnit over TestNG even if Cedric Beust created TestNg and was part of Android team?

Persimmonium answers

Java Exception when Switching from XP to WIN2K
The quintessential email listener / mini server in Java or .NET
How do I import the content of .PDF files into a Solr index?
How to create a bigram/trigrams index in Lucene 3.4.0?
inputting arbitrary xml in solr
How to download Solr collection config from zookeeper
Solr Filter Cache (FastLRUCache) takes too much memory and results in out of memory?
What are docValues in Solr? When should I use them?
what is the advantage of lucene's Compound File
Multi-tenant Lucene indexing strategy