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Use Collection factory methods when applicable

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This commit replaces the use of Collections.unmodifiableList/Set/Map
with the corresponding 'of(...)' factory methods introduced in Java 9.

Closes gh-27824
This commit is contained in:
Marten Deinum
2021-12-16 07:50:41 +01:00
committed by Sam Brannen
parent ab240f5d8e
commit 941b6af9ac
14 changed files with 68 additions and 137 deletions
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24
spring-beans/src/main/java/org/springframework/beans/BeanUtils.java
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@@ -29,7 +29,6 @@ import java.time.temporal.Temporal;
import java.util.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
@@ -79,20 +78,15 @@ public abstract class BeanUtils {
private static final Set<Class<?>> unknownEditorTypes =
Collections.newSetFromMap(new ConcurrentReferenceHashMap<>(64));
private static final Map<Class<?>, Object> DEFAULT_TYPE_VALUES;
static {
Map<Class<?>, Object> values = new HashMap<>();
values.put(boolean.class, false);
values.put(byte.class, (byte) 0);
values.put(short.class, (short) 0);
values.put(int.class, 0);
values.put(long.class, 0L);
values.put(float.class, 0F);
values.put(double.class, 0D);
values.put(char.class, '\0');
DEFAULT_TYPE_VALUES = Collections.unmodifiableMap(values);
}
private static final Map<Class<?>, Object> DEFAULT_TYPE_VALUES = Map.of(
boolean.class, false,
byte.class, (byte) 0,
short.class, (short) 0,
int.class, 0,
long.class, 0L,
float.class, 0F,
double.class, 0D,
char.class, '\0');
/**