You can download gson-2.3.1.jar in this page.
The Apache Software License, Version 2.0
gson-2.3.1.jar file has the following types.
META-INF/MANIFEST.MF com.google.gson.DefaultDateTypeAdapter.class com.google.gson.ExclusionStrategy.class com.google.gson.FieldAttributes.class com.google.gson.FieldNamingPolicy.class com.google.gson.FieldNamingStrategy.class com.google.gson.Gson.class com.google.gson.GsonBuilder.class com.google.gson.InstanceCreator.class com.google.gson.JsonArray.class com.google.gson.JsonDeserializationContext.class com.google.gson.JsonDeserializer.class com.google.gson.JsonElement.class com.google.gson.JsonIOException.class com.google.gson.JsonNull.class com.google.gson.JsonObject.class com.google.gson.JsonParseException.class com.google.gson.JsonParser.class com.google.gson.JsonPrimitive.class com.google.gson.JsonSerializationContext.class com.google.gson.JsonSerializer.class com.google.gson.JsonStreamParser.class com.google.gson.JsonSyntaxException.class com.google.gson.LongSerializationPolicy.class com.google.gson.TreeTypeAdapter.class com.google.gson.TypeAdapter.class com.google.gson.TypeAdapterFactory.class com.google.gson.annotations.Expose.class com.google.gson.annotations.JsonAdapter.class com.google.gson.annotations.SerializedName.class com.google.gson.annotations.Since.class com.google.gson.annotations.Until.class com.google.gson.internal.ConstructorConstructor.class com.google.gson.internal.Excluder.class com.google.gson.internal.JsonReaderInternalAccess.class com.google.gson.internal.LazilyParsedNumber.class com.google.gson.internal.LinkedHashTreeMap.class com.google.gson.internal.LinkedTreeMap.class com.google.gson.internal.ObjectConstructor.class com.google.gson.internal.Primitives.class com.google.gson.internal.Streams.class com.google.gson.internal.UnsafeAllocator.class com.google.gson.internal.bind.ArrayTypeAdapter.class com.google.gson.internal.bind.CollectionTypeAdapterFactory.class com.google.gson.internal.bind.DateTypeAdapter.class com.google.gson.internal.bind.JsonAdapterAnnotationTypeAdapterFactory.class com.google.gson.internal.bind.JsonTreeReader.class com.google.gson.internal.bind.JsonTreeWriter.class com.google.gson.internal.bind.MapTypeAdapterFactory.class com.google.gson.internal.bind.ObjectTypeAdapter.class com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.class com.google.gson.internal.bind.SqlDateTypeAdapter.class com.google.gson.internal.bind.TimeTypeAdapter.class com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.class com.google.gson.internal.bind.TypeAdapters.class com.google.gson.reflect.TypeToken.class com.google.gson.stream.JsonReader.class com.google.gson.stream.JsonScope.class com.google.gson.stream.JsonToken.class com.google.gson.stream.JsonWriter.class com.google.gson.stream.MalformedJsonException.class
gson-2.3.1.pom file content.
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<packaging>jar</packaging>
<version>2.3.1</version>
<inceptionYear>2008</inceptionYear>
<name>Gson</name>
<parent>
<groupId>org.sonatype.oss</groupId>
<artifactId>oss-parent</artifactId>
<version>9</version>
</parent>
<url>http://code.google.com/p/google-gson/</url>
<description>Google Gson library</description>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<licenses>
<license>
<name>The Apache Software License, Version 2.0</name>
<url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
<distribution>repo</distribution>
</license>
</licenses>
<scm>
<connection>scm:svn:http://google-gson.googlecode.com/svn/tags/gson-2.3.1</connection>
<developerConnection>scm:svn:https://google-gson.googlecode.com/svn/tags/gson-2.3.1</developerConnection>
<url>http://google-gson.googlecode.com/svn/tags/gson-2.3.1</url>
</scm>
<issueManagement>
<system>Google Code Issue Tracking</system>
<url>http://code.google.com/p/google-gson/issues/list</url>
</issueManagement>
<distributionManagement>
<snapshotRepository>
<id>sonatype-nexus-snapshots</id>
<name>Sonatype Nexus Snapshots</name>
<url>https://oss.sonatype.org/content/repositories/snapshots/</url>
</snapshotRepository>
<repository>
<id>sonatype-nexus-staging</id>
<name>Nexus Release Repository</name>
<url>http://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
</repository>
</distributionManagement>
<organization>
<name>Google, Inc.</name>
<url>http://www.google.com</url>
</organization>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.2</version>
<scope>test</scope>
</dependency>
</dependencies>
<profiles>
<!-- Activate PGP signing only when performing a release -->
<profile>
<id>release-sign-artifacts</id>
<activation>
<property>
<name>performRelease</name>
<value>true</value>
</property>
</activation>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-gpg-plugin</artifactId>
<version>1.5</version>
<executions>
<execution>
<id>sign-artifacts</id>
<phase>verify</phase>
<goals>
<goal>sign</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>doclint-java8-disable</id>
<activation>
<jdk>[1.8,)</jdk>
</activation>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<configuration>
<additionalparam>-Xdoclint:none</additionalparam>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
<build>
<defaultGoal>package</defaultGoal>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>1.5</source>
<target>1.5</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.5</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
<configuration>
<archive>
<addMavenDescriptor>false</addMavenDescriptor>
<manifestEntries>
<Bundle-RequiredExecutionEnvironment>J2SE-1.5, JavaSE-1.6, JavaSE-1.7, JavaSE-1.8</Bundle-RequiredExecutionEnvironment>
<Export-Package><![CDATA[com.google.gson;version=${project.version}, com.google.gson.annotations;version=${project.version}, com.google.gson.reflect;version=${project.version}, com.google.gson.stream;version=${project.version}, com.google.gson.internal;version=${project.version}, com.google.gson.internal.bind;version=${project.version}]]></Export-Package>
<Bundle-Version>${project.version}</Bundle-Version>
<Bundle-ContactAddress>http://code.google.com/p/google-gson/</Bundle-ContactAddress>
<Bundle-Vendor>Google Gson Project</Bundle-Vendor>
<Bundle-Name>${project.name}</Bundle-Name>
<Bundle-Description>${project.description}</Bundle-Description>
<Bundle-ClassPath>.</Bundle-ClassPath>
<Bundle-ManifestVersion>2</Bundle-ManifestVersion>
<Bundle-SymbolicName>com.google.gson</Bundle-SymbolicName>
</manifestEntries>
</archive>
</configuration>
</plugin>
<plugin>
<!-- TODO(inder): add manifest entry for maven group, artifact, and classifier ids -->
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-source-plugin</artifactId>
<version>2.4</version>
<executions>
<execution>
<id>attach-sources</id>
<phase>verify</phase>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
<configuration>
<archive>
<manifestEntries>
<Eclipse-SourceBundle>com.google.gson;version="${project.version}"</Eclipse-SourceBundle>
<Bundle-SymbolicName>com.google.gson.source</Bundle-SymbolicName>
<Bundle-ManifestVersion>2</Bundle-ManifestVersion>
<Bundle-Version>${project.version}</Bundle-Version>
</manifestEntries>
</archive>
</configuration>
</plugin>
<plugin>
<!-- TODO(inder): add manifest entry for maven group, artifact, and classifier ids -->
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>2.10.1</version>
<executions>
<execution>
<id>attach-javadocs</id>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
<configuration>
<includePackageNames>com.google.gson</includePackageNames>
<excludePackageNames>com.google.gson.internal:com.google.gson.internal.bind</excludePackageNames>
<links>
<link>http://docs.oracle.com/javase/1.5.0/docs/api/</link>
</links>
<version>true</version>
<show>protected</show>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.9</version>
<configuration>
<downloadSources>true</downloadSources>
<downloadJavadocs>true</downloadJavadocs>
<workspace>
../eclipse-ws/
</workspace>
<workspaceCodeStylesURL>
file:///${basedir}/../lib/gson-formatting-styles.xml
</workspaceCodeStylesURL>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-release-plugin</artifactId>
<!-- version>2.5</version -->
<configuration>
<arguments>-DenableCiProfile=true</arguments>
<tagBase>https://google-gson.googlecode.com/svn/tags</tagBase>
</configuration>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.5.1</version>
<configuration>
<descriptor>assembly-descriptor.xml</descriptor>
<finalName>google-gson-${project.version}</finalName>
<outputDirectory>target/dist</outputDirectory>
<workDirectory>target/assembly/work</workDirectory>
</configuration>
</plugin>
</plugins>
</build>
<developers>
<developer>
<name>Inderjeet Singh</name>
<organization>Trymph Inc.</organization>
</developer>
<developer>
<name>Joel Leitch</name>
<organization>Google Inc.</organization>
</developer>
<developer>
<name>Jesse Wilson</name>
<organization>Square Inc.</organization>
</developer>
</developers>
</project>
<dependency> <groupId>com.google.code.gson</groupId> <artifactId>gson</artifactId> <version>2.3.1</version> </dependency>
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