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AVRO-3713: [Java] Fix Map synchronization regression
Signed-off-by: Niels Basjes <[email protected]>
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lang/java/avro/src/main/java/org/apache/avro/util/springframework/Assert.java
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| /* | ||
| * Copyright 2002-2020 the original author or authors. | ||
| * | ||
| * Licensed 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 | ||
| * | ||
| * https://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. | ||
| */ | ||
|
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| package org.apache.avro.util.springframework; | ||
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| import org.apache.avro.reflect.Nullable; | ||
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| /** | ||
| * Assertion utility class that assists in validating arguments. | ||
| * | ||
| * <p> | ||
| * Useful for identifying programmer errors early and clearly at runtime. | ||
| * | ||
| * <p> | ||
| * For example, if the contract of a public method states it does not allow | ||
| * {@code null} arguments, {@code Assert} can be used to validate that contract. | ||
| * Doing this clearly indicates a contract violation when it occurs and protects | ||
| * the class's invariants. | ||
| * | ||
| * <p> | ||
| * Typically used to validate method arguments rather than configuration | ||
| * properties, to check for cases that are usually programmer errors rather than | ||
| * configuration errors. In contrast to configuration initialization code, there | ||
| * is usually no point in falling back to defaults in such methods. | ||
| * | ||
| * <p> | ||
| * This class is similar to JUnit's assertion library. If an argument value is | ||
| * deemed invalid, an {@link IllegalArgumentException} is thrown (typically). | ||
| * For example: | ||
| * | ||
| * <pre class="code"> | ||
| * Assert.notNull(clazz, "The class must not be null"); | ||
| * Assert.isTrue(i > 0, "The value must be greater than zero"); | ||
| * </pre> | ||
| * | ||
| * <p> | ||
| * Mainly for internal use within the framework; for a more comprehensive suite | ||
| * of assertion utilities consider {@code org.apache.commons.lang3.Validate} | ||
| * from <a href="https://commons.apache.org/proper/commons-lang/">Apache Commons | ||
| * Lang</a>, Google Guava's <a href= | ||
| * "https://github.com/google/guava/wiki/PreconditionsExplained">Preconditions</a>, | ||
| * or similar third-party libraries. | ||
| * | ||
| * @author Keith Donald | ||
| * @author Juergen Hoeller | ||
| * @author Sam Brannen | ||
| * @author Colin Sampaleanu | ||
| * @author Rob Harrop | ||
| * @since 1.1.2 | ||
| */ | ||
| class Assert { | ||
| private Assert() { | ||
| } | ||
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| /** | ||
| * Assert a boolean expression, throwing an {@code IllegalStateException} if the | ||
| * expression evaluates to {@code false}. | ||
| * | ||
| * <pre class="code"> | ||
| * Assert.state(id == null, "The id property must not already be initialized"); | ||
| * </pre> | ||
| * | ||
| * @param expression a boolean expression | ||
| * @param message the exception message to use if the assertion fails | ||
| * @throws IllegalStateException if {@code expression} is {@code false} | ||
| */ | ||
| public static void state(boolean expression, String message) { | ||
| if (!expression) { | ||
| throw new IllegalStateException(message); | ||
| } | ||
| } | ||
|
|
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| /** | ||
| * Assert a boolean expression, throwing an {@code IllegalArgumentException} if | ||
| * the expression evaluates to {@code false}. | ||
| * | ||
| * <pre class="code"> | ||
| * Assert.isTrue(i > 0, "The value must be greater than zero"); | ||
| * </pre> | ||
| * | ||
| * @param expression a boolean expression | ||
| * @param message the exception message to use if the assertion fails | ||
| * @throws IllegalArgumentException if {@code expression} is {@code false} | ||
| */ | ||
| public static void isTrue(boolean expression, String message) { | ||
| if (!expression) { | ||
| throw new IllegalArgumentException(message); | ||
| } | ||
| } | ||
|
|
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| /** | ||
| * Assert that an object is not {@code null}. | ||
| * | ||
| * <pre class="code"> | ||
| * Assert.notNull(clazz, "The class must not be null"); | ||
| * </pre> | ||
| * | ||
| * @param object the object to check | ||
| * @param message the exception message to use if the assertion fails | ||
| * @throws IllegalArgumentException if the object is {@code null} | ||
| */ | ||
| public static void notNull(@Nullable Object object, String message) { | ||
| if (object == null) { | ||
| throw new IllegalArgumentException(message); | ||
| } | ||
| } | ||
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| } |
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