Eclipse compiler raises NoClassDefFoundError for spring-boot-configuration-processor's ConfigurationMetadata class

Hello,

I'm using 2018.1 edition. I want to use "Eclipse" compiler in my project instead of the default "Javac" (to utilize the "Proceed on errors" feature).

I configured the following options:

• Compiler > Java compiler: Use compiler = Eclipse
• Compiler > Annotation processor: enabled
• SDK: jdk1.8

My project is a spring-boot apps which has spring-boot-annotation-processor in classpath. But when building the project, I got the following error

Error:java: Internal compiler error: java.lang.Exception: java.lang.NoClassDefFoundError: org/springframework/boot/configurationprocessor/metadata/ConfigurationMetadata at org.eclipse.jdt.internal.compiler.apt.dispatch.RoundDispatcher.handleProcessor(RoundDispatcher.java:169)

But if I switched to Javac compiler, all went well.

If I downloaded the ECJ-4.7.2 JAR from eclipse, combined the content of spring-boot-configuration-processor-1.5.9.RELEASE.jar into the ECJ jar, told intellij to use my custom ECJ jar. Then all went well.

I guess there's something wrong with the build classpath when intellij invokes ecj.jar

How can I fix this error?

Thanks,

Bao.

I have created a very simple project to demonstrate this issue:

pom.xml file:

<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>intellij.test</groupId>
    <artifactId>test-ecj</artifactId>
    <version>0.1.0.0-SNAPSHOT</version>
    <packaging>jar</packaging>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.9.RELEASE</version>
        <relativePath/>
    </parent>

    <properties>
        <java.version>1.8</java.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>

        <graphql.spring-boot.version>3.9.2</graphql.spring-boot.version>
        <spring-boot.version>1.5.9.RELEASE</spring-boot.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>com.graphql-java</groupId>
            <artifactId>graphql-spring-boot-starter</artifactId>
            <version>${graphql.spring-boot.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>javax.servlet</groupId>
                    <artifactId>javax.servlet-api</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>com.graphql-java</groupId>
            <artifactId>graphiql-spring-boot-starter</artifactId>
            <version>${graphql.spring-boot.version}</version>
        </dependency>
        <dependency>
            <groupId>com.graphql-java</groupId>
            <artifactId>graphql-java</artifactId>
            <version>4.2</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.3</version>
                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

An empty java file:

package intellij.test.ecj;

public class TestEcj {
}

The compiler configuration (file: .idea/compiler.xml)

<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
  <component name="CompilerConfiguration">
    <option name="DEFAULT_COMPILER" value="Eclipse" />
    <annotationProcessing>
      <profile name="Maven default annotation processors profile" enabled="true">
        <sourceOutputDir name="target/generated-sources/annotations" />
        <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
        <outputRelativeToContentRoot value="true" />
        <module name="test-ecj" />
      </profile>
    </annotationProcessing>
    <bytecodeTargetLevel>
      <module name="test-ecj" target="1.8" />
    </bytecodeTargetLevel>
  </component>
</project>