Java ee api rest error: java.lang.IllegalArgumentException

Question

我正在用 Tomcat 7.0 + Maven + Java EE + JDK 10.0.2 在 eclipse 中创建一个 api rest，我收到了这个错误：

错误：

HTTP Status 500 - Servlet.init() for servlet api threw exception

type Exception report

message Servlet.init() for servlet api threw exception

description The server encountered an internal error that prevented it from fulfilling this request.

exception javax.servlet.ServletException: Servlet.init() for servlet api threw exception org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1135) java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) java.base/java.lang.Thread.run(Thread.java:844)

root cause java.lang.IllegalArgumentException jersey.repackaged.org.objectweb.asm.ClassReader.(ClassReader.java:170) jersey.repackaged.org.objectweb.asm.ClassReader.(ClassReader.java:153) jersey.repackaged.org.objectweb.asm.ClassReader.(ClassReader.java:424) com.sun.jersey.spi.scanning.AnnotationScannerListener.onProcess(AnnotationScannerListener.java:138) com.sun.jersey.spi.scanning.servlet.WebAppResourcesScanner.f(WebAppResourcesScanner.java:104) com.sun.jersey.core.util.Closing.f(Closing.java:71) com.sun.jersey.spi.scanning.servlet.WebAppResourcesScanner.scan(WebAppResourcesScanner.java:102) com.sun.jersey.spi.scanning.servlet.WebAppResourcesScanner.scan(WebAppResourcesScanner.java:89) com.sun.jersey.spi.scanning.servlet.WebAppResourcesScanner.scan(WebAppResourcesScanner.java:89) com.sun.jersey.spi.scanning.servlet.WebAppResourcesScanner.scan(WebAppResourcesScanner.java:89) com.sun.jersey.spi.scanning.servlet.WebAppResourcesScanner.scan(WebAppResourcesScanner.java:89) com.sun.jersey.spi.scanning.servlet.WebAppResourcesScanner.scan(WebAppResourcesScanner.java:79) com.sun.jersey.api.core.ScanningResourceConfig.init(ScanningResourceConfig.java:80) com.sun.jersey.api.core.servlet.WebAppResourceConfig.init(WebAppResourceConfig.java:102) com.sun.jersey.api.core.servlet.WebAppResourceConfig.(WebAppResourceConfig.java:89) com.sun.jersey.api.core.servlet.WebAppResourceConfig.(WebAppResourceConfig.java:74) com.sun.jersey.spi.container.servlet.WebComponent.getWebAppResourceConfig(WebComponent.java:668) com.sun.jersey.spi.container.servlet.ServletContainer.getDefaultResourceConfig(ServletContainer.java:435) com.sun.jersey.spi.container.servlet.ServletContainer.getDefaultResourceConfig(ServletContainer.java:602) com.sun.jersey.spi.container.servlet.WebServletConfig.getDefaultResourceConfig(WebServletConfig.java:87) com.sun.jersey.spi.container.servlet.WebComponent.createResourceConfig(WebComponent.java:699) com.sun.jersey.spi.container.servlet.WebComponent.createResourceConfig(WebComponent.java:674) com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:205) com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:394) com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:577) javax.servlet.GenericServlet.init(GenericServlet.java:160) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1135) java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) java.base/java.lang.Thread.run(Thread.java:844)

note The full stack trace of the root cause is available in the Apache Tomcat/7.0.47 logs.

Apache Tomcat/7.0.47

web.xml

    <?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
      <display-name>api</display-name>
      <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.htm</welcome-file>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>default.html</welcome-file>
        <welcome-file>default.htm</welcome-file>
        <welcome-file>default.jsp</welcome-file>
      </welcome-file-list>
      <servlet>
        <servlet-name>api</servlet-name>
        <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
        <load-on-startup>1</load-on-startup>
      </servlet>
      <servlet-mapping>
        <servlet-name>api</servlet-name>
        <url-pattern>/rest/*</url-pattern>
      </servlet-mapping>
    </web-app>

pom.xml

 <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/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
        <groupId>api</groupId>
        <artifactId>api</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <packaging>war</packaging>
        <build>
            <sourceDirectory>src</sourceDirectory>
            <plugins>
                <plugin>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.7.0</version>
                    <configuration>
                        <release>10</release>
                    </configuration>
                </plugin>
                <plugin>
                    <artifactId>maven-war-plugin</artifactId>
                    <version>3.2.1</version>
                    <configuration>
                        <warSourceDirectory>WebContent</warSourceDirectory>
                    </configuration>
                </plugin>
            </plugins>
        </build>
        <dependencies>
            <dependency>
                <groupId>asm</groupId>
                <artifactId>asm</artifactId>
                <version>3.3.1</version>
            </dependency>
            <dependency>
                <groupId>com.sun.jersey</groupId>
                <artifactId>jersey-bundle</artifactId>
                <version>1.19.4</version>
            </dependency>
            <dependency>
                <groupId>org.json</groupId>
                <artifactId>json</artifactId>
                <version>20170516</version>
            </dependency>
            <dependency>
                <groupId>com.sun.jersey</groupId>
                <artifactId>jersey-server</artifactId>
                <version>1.19.4</version>
            </dependency>
            <dependency>
                <groupId>com.sun.jersey</groupId>
                <artifactId>jersey-core</artifactId>
                <version>1.19.4</version>
            </dependency>
        </dependencies>
    </project>

Answer 1

经过一番挖掘，我发现 IllegalArgumentException 是由 Jersey 重新打包的 ASM 库抛出的。

我不确定我的版本是否正确，但是在第 170 行，代码是这样的：

    // checks the class version
    // added "support" for java 9 compiled classes
    if (readShort(off + 6) > Opcodes.V9) {
        throw new IllegalArgumentException();
    }

代码正在检查它试图读取的 class 的 class 文件版本号，如果太新则抛出 IllegalArgumentException。

简而言之，您正在尝试使用某些 Java class，这些 Java 编译器对于 ASM 库来说太新了：

使用较旧的 JDK 或将 -target 版本设置为较旧的版本。
或者，查找/安装已针对您正在构建的 Java 版本进行认证的 Jersey 版本。

让我感到奇怪的一件事是您对 POM 文件中的旧版本 "asm" 有明确的依赖性。但是，堆栈跟踪表明您没有使用该版本。

Java ee api rest error: java.lang.IllegalArgumentException

Java ee api rest error: java.lang.IllegalArgumentException

java

rest

servlets

jersey

jakarta-ee