42 lines
1.7 KiB
Plaintext
42 lines
1.7 KiB
Plaintext
Some Guava features were really useful for Java 7 application because Guava was bringing APIs missing in the JDK. Java 8 fixed some of these limitations. When migrating an application to Java 8 or even when starting a new one, it's recommended to prefer Java 8 APIs over Guava ones to ease its maintenance: developers don't need to learn how to use two APIs and can stick to the standard one.
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Java 9 brought even more useful methods to the standard Java library and if Java version is equal to or higher than 9, these standard methods should be used.
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This rule raises an issue when the following Guava APIs are used:
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|| Guava API || Java 8 API ||
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| com.google.common.io.BaseEncoding#base64() | java.util.Base64 |
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| com.google.common.io.BaseEncoding#base64Url() | java.util.Base64 |
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| com.google.common.base.Joiner.on() | java.lang.String#join() or java.util.stream.Collectors#joining() |
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| com.google.common.base.Optional#of() | java.util.Optional#of() |
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| com.google.common.base.Optional#absent() | java.util.Optional#empty() |
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| com.google.common.base.Optional#fromNullable() | java.util.Optional#ofNullable() |
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| com.google.common.base.Optional | java.util.Optional |
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| com.google.common.base.Predicate | java.util.function.Predicate |
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| com.google.common.base.Function | java.util.function.Function |
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| com.google.common.base.Supplier | java.util.function.Supplier |
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| com.google.common.io.Files.createTempDir | java.nio.file.Files.createTempDirectory |
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|| Guava API || Java 9 API ||
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| com.google.common.collect.ImmutableSet#of() | java.util.Set#of() |
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| com.google.common.collect.ImmutableList#of() | java.util.List#of() |
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| com.google.common.collect.ImmutableMap#of() | java.util.Map#of() or java.util.Map#ofEntries()|
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