# Licensed to the Apache Software Foundation (ASF) under one or more # contributor license agreements. See the NOTICE file distributed with # this work for additional information regarding copyright ownership. # The ASF licenses this file to You 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. @defaultMessage Spawns threads with vague names; use a custom thread factory (Lucene's NamedThreadFactory, Solr's SolrNamedThreadFactory) and name threads so that you can tell (by its name) which executor it is associated with java.util.concurrent.Executors#newFixedThreadPool(int) java.util.concurrent.Executors#newSingleThreadExecutor() java.util.concurrent.Executors#newCachedThreadPool() java.util.concurrent.Executors#newSingleThreadScheduledExecutor() java.util.concurrent.Executors#newScheduledThreadPool(int) java.util.concurrent.Executors#defaultThreadFactory() java.util.concurrent.Executors#privilegedThreadFactory() @defaultMessage Properties files should be read/written with Reader/Writer, using UTF-8 charset. This allows reading older files with unicode escapes, too. java.util.Properties#load(java.io.InputStream) java.util.Properties#save(java.io.OutputStream,java.lang.String) java.util.Properties#store(java.io.OutputStream,java.lang.String) @defaultMessage The context classloader should never be used for resource lookups, unless there is a 3rd party library that needs it. Always pass a classloader down as method parameters. java.lang.Thread#getContextClassLoader() java.lang.Thread#setContextClassLoader(java.lang.ClassLoader) java.lang.Character#codePointBefore(char[],int) @ Implicit start offset is error-prone when the char[] is a buffer and the first chars are random chars java.lang.Character#codePointAt(char[],int) @ Implicit end offset is error-prone when the char[] is a buffer and the last chars are random chars java.io.File#delete() @ use Files.delete for real exception, IOUtils.deleteFilesIgnoringExceptions if you dont care java.util.Collections#shuffle(java.util.List) @ Use shuffle(List, Random) instead so that it can be reproduced java.util.Stack @ Use more modern java.util.ArrayDeque as it is not synchronized java.util.Vector @ Use more modern java.util.ArrayList as it is not synchronized # TODO (needs some fix in forbiddenapis): this also hits java.util.Properties: # java.util.Hashtable @ Use more modern java.util.HashMap as it is not synchronized java.util.Locale#forLanguageTag(java.lang.String) @ use new Locale.Builder().setLanguageTag(...).build() which has error handling java.util.Locale#toString() @ use Locale#toLanguageTag() for a standardized BCP47 locale name @defaultMessage Constructors for wrapper classes of Java primitives should be avoided in favor of the public static methods available or autoboxing java.lang.Integer#(**) java.lang.Byte#(**) java.lang.Short#(**) java.lang.Long#(**) java.lang.Boolean#(**) java.lang.Character#(**) java.lang.Float#(**) java.lang.Double#(**) @defaultMessage Java deserialization is unsafe when the data is untrusted. The java developer is powerless: no checks or casts help, exploitation can happen in places such as clinit or finalize! java.io.ObjectInputStream java.io.ObjectOutputStream @defaultMessage JNDI is RCE-in-a-box, avoid it. javax.naming.Context javax.management.remote.JMXConnectorFactory javax.management.remote.rmi.RMIConnector javax.naming.directory.InitialDirContext javax.naming.InitialContext javax.naming.spi.ContinuationContext javax.naming.spi.ContinuationDirContext javax.sql.rowset.spi.ProviderImpl javax.sql.rowset.spi.SyncFactory @defaultMessage Math.fma is insanely slow (2500x) in many environments (e.g. VMs). Use multiply/add and suffer the extra rounding java.lang.Math#fma(float,float,float) java.lang.Math#fma(double,double,double) java.lang.Thread#sleep(**) @ Thread.sleep makes inefficient use of resources, introduces weird race conditions and slows down the code/tests. Not a scalable and good practice so we should prevent it creeping into lucene code