Java calls the webService interface and reports an error

Problem Description

This article uses jdk1.8.0_202, which is installed in the D disk, and the system environment variable path is configured.

D:\Java\jdk8\bin;D:\Java\jdk8\jre\bin;

The dependencies of calling webservice in this article are as follows:

        <!-- webservice调用依赖cxf-->
        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-rt-frontend-jaxrs</artifactId>
            <version>3.1.6</version>
        </dependency>
        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-rt-frontend-jaxws</artifactId>
            <version>3.1.6</version>
        </dependency>
        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-core</artifactId>
            <version>3.1.6</version>
        </dependency>
        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-rt-transports-http</artifactId>
            <version>3.1.6</version>
        </dependency>
        <!-- webservice调用依赖axis-->
        <dependency>
            <groupId>org.apache.axis</groupId>
            <artifactId>axis-jaxrpc</artifactId>
            <version>1.4</version>
        </dependency>
        <dependency>
            <groupId>org.apache.axis</groupId>
            <artifactId>axis-saaj</artifactId>
            <version>1.4</version>
        </dependency>
        <dependency>
            <groupId>org.apache.axis</groupId>
            <artifactId>axis</artifactId>
            <version>1.4</version>
        </dependency>
        <dependency>
            <groupId>commons-discovery</groupId>
            <artifactId>commons-discovery</artifactId>
            <version>0.5</version>
            <exclusions>
                <exclusion>
                    <groupId>commons-logging</groupId>
                    <artifactId>commons-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

Call method:

JaxWsDynamicClientFactory dcf = JaxWsDynamicClientFactory.newInstance();
Client client = dcf.createClient(wsUrl);

Log error:

java.lang.ClassNotFoundException: com/sun/tools/internal/xjc/api/XJC
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Unknown Source)
	at org.apache.cxf.common.jaxb.JAXBUtils.createSchemaCompiler(JAXBUtils.java:711)
	at org.apache.cxf.common.jaxb.JAXBUtils.createSchemaCompilerWithDefaultAllocator(JAXBUtils.java:725)
	at org.apache.cxf.endpoint.dynamic.DynamicClientFactory.createSchemaCompiler(DynamicClientFactory.java:423)
	at org.apache.cxf.endpoint.dynamic.DynamicClientFactory.createClient(DynamicClientFactory.java:307)
	at org.apache.cxf.endpoint.dynamic.DynamicClientFactory.createClient(DynamicClientFactory.java:241)
	at org.apache.cxf.endpoint.dynamic.DynamicClientFactory.createClient(DynamicClientFactory.java:234)
	at org.apache.cxf.endpoint.dynamic.DynamicClientFactory.createClient(DynamicClientFactory.java:189)

Resolution process

First follow the popular solutions on the Internet, copy jdk/lib/tools.jar to jre/lib at the same level as jdk.
Note: To see the tools.jar, you must open the folder to hide the directory display.

Then send the request again, the error is as follows:

java.lang.NullPointerException: null
	at org.apache.cxf.common.util.Compiler.useJava6Compiler(Compiler.java:187)
	at org.apache.cxf.common.util.Compiler.compileFiles(Compiler.java:141)
	at org.apache.cxf.common.util.Compiler.compileFiles(Compiler.java:136)
	at org.apache.cxf.endpoint.dynamic.DynamicClientFactory.compileJavaSrc(DynamicClientFactory.java:611)
	at org.apache.cxf.endpoint.dynamic.DynamicClientFactory.createClient(DynamicClientFactory.java:370)
	at org.apache.cxf.endpoint.dynamic.DynamicClientFactory.createClient(DynamicClientFactory.java:241)
	at org.apache.cxf.endpoint.dynamic.DynamicClientFactory.createClient(DynamicClientFactory.java:234)
	at org.apache.cxf.endpoint.dynamic.DynamicClientFactory.createClient(DynamicClientFactory.java:189)

Package cxf null pointer, I looked at my environment variable configuration, the configuration is jdk/bin and jdk/jre/bin respectively, then I directly copy tools. null pointer.

I saw someone on the Internet saying, and then I added this piece of code before dcf.createClient(wsUrl) initialized the Client:

// xxx是当前类的名字
Thread.currentThread().setContextClassLoader(xxx.class.getClassLoader());

I found that it was still a null pointer, so I changed it to this:

Thread.currentThread().setContextClassLoader(Client.class.getClassLoader());

Still not working.

solution

So I replaced it with jdk1.8.0_341 (click to use the quark network disk to download), and use the default installation path (C:\Program Files\Java, so there is no need to configure environment variables).

Then continue the above steps, copy tools.jar under jdk/lib to jdk/jre/lib and jre/lib at the same level of jdk respectively. Problem solved successfully.

NICE NICE NICE NICE !!!

Summary: Pay attention to version issues, and copy tools.jar to jre/lib.

• apache-cxf-3.2.XX start JDK minimum requirement is JDK1.8
• apache-cxf-3.1.XX still supports JDK1.7