I am using jdk 1.9. I am trying to bring up a simple ReST service. Created the project using the maven archetype: jersey-quickstart-webapp. Then I went ahead and modified the pom.xml and web.xml. My maven config is as shown below:

<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>restWebService</groupId>
    <artifactId>restWebService</artifactId>
    <packaging>war</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>restWebService</name>

    <build>
        <finalName>restWebService</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.7.0</version>
                <inherited>true</inherited>
                <configuration>
                    <source>9</source>
                    <target>9</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.glassfish.jersey</groupId>
                <artifactId>jersey-bom</artifactId>
                <version>${jersey.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <dependencies>
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>5.0.0.RELEASE</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-client -->
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-client</artifactId>
            <version>1.19.4</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-bundle -->
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-bundle</artifactId>
            <version>1.19.4</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-server -->
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-server</artifactId>
            <version>1.19.4</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.sun.jersey/jersey-core -->
        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-core</artifactId>
            <version>1.19.4</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/asm/asm -->
        <dependency>
            <groupId>org.ow2.asm</groupId>
            <artifactId>asm</artifactId>
            <version>6.0_BETA</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.json/json -->
        <dependency>
            <groupId>org.json</groupId>
            <artifactId>json</artifactId>
            <version>20170516</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.sun.xml.bind/jaxb-impl -->
        <dependency>
            <groupId>com.sun.xml.bind</groupId>
            <artifactId>jaxb-impl</artifactId>
            <version>2.3.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/javax.xml/jaxb-api -->
        <dependency>
            <groupId>javax.xml</groupId>
            <artifactId>jaxb-api</artifactId>
            <version>2.1</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/javax.activation/activation -->
        <dependency>
            <groupId>javax.activation</groupId>
            <artifactId>activation</artifactId>
            <version>1.1.1</version>
        </dependency>

        <dependency>
            <groupId>com.sun.jersey</groupId>
            <artifactId>jersey-json</artifactId>
            <version>1.19.4</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.sun.xml.bind/jaxb-core -->
        <dependency>
            <groupId>com.sun.xml.bind</groupId>
            <artifactId>jaxb-core</artifactId>
            <version>2.3.0</version>
        </dependency>

    </dependencies>
    <properties>
        <jersey.version>2.16</jersey.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
</project>

And the web.xml looks like this:

<?xml version="1.0" encoding="UTF-8"?>
<!-- This web.xml file is not required when using Servlet 3.0 container,
     see implementation details http://jersey.java.net/nonav/documentation/latest/jax-rs.html -->
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    <servlet>
        <servlet-name>Jersey REST Service</servlet-name>
        <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
        <init-param>
            <param-name>com.sun.jersey.config.property.packages</param-name>
            <param-value>restWebService</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>Jersey REST Service</servlet-name>
        <url-pattern>/webapi/*</url-pattern>
    </servlet-mapping>
</web-app>

When I try to hit this URL: http://localhost:8080/webapi/myresource - I see the following error:

HTTP Status 500 – Internal Server Error

Type Exception Report

Message Servlet.init() for servlet [Jersey REST Service] threw exception

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

javax.servlet.ServletException: Servlet.init() for servlet [Jersey REST Service] threw exception
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:475)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
    org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:651)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
    org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:500)
    org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:754)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1376)
    org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
    java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.base/java.lang.Thread.run(Thread.java:844)
Root Cause

java.lang.IllegalArgumentException
    jersey.repackaged.org.objectweb.asm.ClassReader.<init>(ClassReader.java:170)
    jersey.repackaged.org.objectweb.asm.ClassReader.<init>(ClassReader.java:153)
    jersey.repackaged.org.objectweb.asm.ClassReader.<init>(ClassReader.java:424)
    com.sun.jersey.spi.scanning.AnnotationScannerListener.onProcess(AnnotationScannerListener.java:138)
    com.sun.jersey.core.spi.scanning.uri.FileSchemeScanner$1.f(FileSchemeScanner.java:86)
    com.sun.jersey.core.util.Closing.f(Closing.java:71)

When I change the build configuration from 1.9 to 1.8

<configuration>
    <source>1.8</source>
    <target>1.8</target>
</configuration>

the service comes up without any issues and I see the expected result on the browser.

I am using Intellij, Project SDK - 9, Project Language Level - 9

What jars should I import in order to make it work with 1.9 ? Or do I need to change maven configuration to make it work ?

EDIT: Dependency Tree

[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building restWebService 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[WARNING] The artifact javax.xml:jaxb-api:jar:2.1 has been relocated to javax.xml.bind:jaxb-api:jar:2.1
[INFO] 
[INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ restWebService ---
[WARNING] The artifact javax.xml:jaxb-api:jar:2.1 has been relocated to javax.xml.bind:jaxb-api:jar:2.1
[INFO] restWebService:restWebService:war:1.0-SNAPSHOT
[INFO] +- org.springframework:spring-core:jar:5.0.0.RELEASE:compile
[INFO] |  \- org.springframework:spring-jcl:jar:5.0.0.RELEASE:compile
[INFO] +- com.sun.jersey:jersey-client:jar:1.19.4:compile
[INFO] +- com.sun.jersey:jersey-bundle:jar:1.19.4:compile
[INFO] |  \- javax.ws.rs:jsr311-api:jar:1.1.1:compile
[INFO] +- com.sun.jersey:jersey-server:jar:1.19.4:compile
[INFO] +- com.sun.jersey:jersey-core:jar:1.19.4:compile
[INFO] +- org.ow2.asm:asm:jar:6.0_BETA:compile
[INFO] +- org.json:json:jar:20170516:compile
[INFO] +- com.sun.xml.bind:jaxb-impl:jar:2.3.0:compile
[INFO] +- javax.xml.bind:jaxb-api:jar:2.1:compile
[INFO] |  \- javax.xml.stream:stax-api:jar:1.0-2:compile
[INFO] +- javax.activation:activation:jar:1.1.1:compile
[INFO] +- com.sun.jersey:jersey-json:jar:1.19.4:compile
[INFO] |  +- org.codehaus.jettison:jettison:jar:1.1:compile
[INFO] |  +- org.codehaus.jackson:jackson-core-asl:jar:1.9.2:compile
[INFO] |  +- org.codehaus.jackson:jackson-mapper-asl:jar:1.9.2:compile
[INFO] |  +- org.codehaus.jackson:jackson-jaxrs:jar:1.9.2:compile
[INFO] |  \- org.codehaus.jackson:jackson-xc:jar:1.9.2:compile
[INFO] \- com.sun.xml.bind:jaxb-core:jar:2.3.0:compile
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.910 s
[INFO] Finished at: 2017-10-14T22:05:15-04:00
[INFO] Final Memory: 13M/44M
[INFO] ------------------------------------------------------------------------

标签： java rest jersey jax-rs java-9

3条回答

家丑人穷心不美

2楼-- · 2019-03-20 16:33

The problem that current Jersey has a shaded asm 5 dependency, which doesn't work with Java 9 bytecode. Looks like Jersey 1.x is not adopted to Java 9 and it's unclear if this support is coming at all. As a temporary solution, I made a branch where I deleted shaded asm, migrated packages in code to use a regular asm dependency and put asm 6.0 in maven dependencies.

You can build only jersey-server and jersey-servlet modules from this branch because only these two depend on asm and use these two custom artifacts in your project.

My projects work fine with such a replacement, but I can't guarantee that it's 100% working solution, I wasn't able to build the whole distribution without fails and can't invest time for a full adoption and check right now. On the same time, the main Jersey parts built without issues.

So, your final pom would look like:

<!--regular jersey dependencies with the last 1.19.4 version-->
<dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-server</artifactId>
    <version>${custom-jersey-with-asm6.version}</version>
</dependency>

<dependency>
     <groupId>com.sun.jersey</groupId>
     <artifactId>jersey-servlet</artifactId>
     <version>${custom-jersey-with-asm6.version}</version>
</dependency>

<dependency>
     <groupId>org.ow2.asm</groupId>
     <artifactId>asm</artifactId>
     <version>6.0</version>
</dependency>

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来，给爷笑一个

3楼-- · 2019-03-20 16:42

I was getting this error and in my case it had nothing to do with the version of Jersey. It was due to some elastic-search jars namely (elastic-search, elastic-search-core and log4j.2.1.1) that were multi-release jars. Multi-release jars have a folder named version that has some artifacts inside the META-INF. I deleted that folder and it resolved the issue.

java #jersey #rest #elasticsearch

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傲

4楼-- · 2019-03-20 16:50

There are quite a few artifacts that you might need to update. To start with you shall check your module's mvn dependency:tree to look out for any source of asm that brings in version < 6.0.x since that is not compatible with Java9. From the current pom.xml and as inferred from your execution logs, you can update

<!-- https://mvnrepository.com/artifact/asm/asm -->
<dependency>
    <groupId>asm</groupId>
    <artifactId>asm</artifactId>
    <version>3.3.1</version>
</dependency>

<dependency>
    <groupId>org.ow2.asm</groupId>
    <artifactId>asm</artifactId>
    <version>6.0</version>
</dependency>

Importantly, use Java 9 compatible maven plugins such as -

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.7.0</version>
    <inherited>true</inherited>
    <configuration>
        <source>9</source>
        <target>9</target>
    </configuration>
</plugin>

On a side note, you might end up still facing some other challenges(I can see conflicting jaxb dependencies, even asm might be transitive from jersey) to resolve which you shall run

mvn dependency:analyze

and make sure that conflicting dependencies are excluded in such cases to make use of their updated version.

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What Jersey version do I need to download for JDK

java #jersey #rest #elasticsearch

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