#InvocationTargetException using JCI

1 messages · Page 1 of 1 (latest)

indigo karma
#

I try to run a simple main to compile(!) some java code. This is my pom:

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>a</groupId>
    <artifactId>a</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <properties>
        <java.version>22</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-jci-javac</artifactId>
            <version>1.0</version>
        </dependency>
    </dependencies>
</project>``` And this is my main-class: ```package a;

import java.nio.charset.StandardCharsets;

import org.apache.commons.jci.compilers.*;
import org.apache.commons.jci.readers.MemoryResourceReader;
import org.apache.commons.jci.stores.MemoryResourceStore;

public class Test {
    public static void main(final String[] args) {
        JavaCompilerFactory cf = new JavaCompilerFactory();
        JavaCompiler compiler = cf.createCompiler("javac");
        MemoryResourceReader pReader = new MemoryResourceReader();
        int i = 0;
        pReader.add("Test.java", "class Test{}".getBytes(StandardCharsets.UTF_8));
        MemoryResourceStore pStore = new MemoryResourceStore();
        CompilationResult result = compiler.compile(new String[] { pReader.list()[0] }, pReader, pStore,
                Test.class.getClassLoader());
        System.out.println(result.getErrors()[0]);
    }
}

My output is: (0:0) : Error while executing the compiler: java.lang.reflect.InvocationTargetException
What am I doing wrong?

glad acornBOT
#

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late cargo
#

Can you please show the full stack trace?

glad acornBOT
#

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indigo karma
#

No stacktrace. Sorry.

late cargo
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Is the above the full error message?

#

Can you add a DiagnosticListener?

indigo karma
#

I dont know what a DiagnosticListener is. I could give you a github repo.

indigo karma
late cargo
#

Can you use setCompilationProblemHandler() and create a custom CompilationProblemHandler?

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to get more information about the error

indigo karma
#

Sure I can. tbh, the JavaCompiler gives the same problem.

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I set ```compiler.setCompilationProblemHandler(new CompilationProblemHandler() {

        @Override
        public boolean handle(final CompilationProblem pProblem) {
            System.out.println("dddd" + pProblem);
            return false;
        }
    });``` but the console does not print the dddd-line. I think the handler does not fire.
late cargo
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Did you try updating to version 1.1?

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or even 2.0

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What is printed with System.out.println(result.getErrors()[0].getMessage());?

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or actually can you use a debugger and show the content of CompilationResult?

late cargo
#

Also it seems like that library is using Apache Commons Logging for quite some stuff - can you enable debug logging there?

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Also are you getting any other result if you use a different compiler?

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e.g. cf.createCompiler("eclipse")

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Looking at the sources, the support for the Eclipse compiler is more complete in that library

indigo karma
late cargo
indigo karma
late cargo
indigo karma
indigo karma
late cargo
#

just not of commons-jci-javac

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Though I don't think JSR199 is supported

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so jkust use the Eclipse compiler with 1.1

indigo karma
late cargo
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Don't use javac there

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that doesn't really seem supported any more

indigo karma
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So they left a faulty JavaCompiler API in the jdk?

late cargo
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The one in the JDK is perfectly fine

indigo karma
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No

late cargo
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but Apache Commons JCI doesn't have that any more

indigo karma
#

Same problem!

late cargo
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You haven't shown me the same thing with the JDK APIs

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and unless you show me, it doesn't exist as far as I'm concerned

indigo karma
late cargo
indigo karma
#

I will, give me a moment.

late cargo
#

Note: I don't doubt that exception would be there but it probably has a reason and should give you more details if you properly ask for it

indigo karma
# 

public class Test {
    public static void main(final String[] args) {
        com.sun.tools.javac.Main.compile(new String[] { "src/main/java/a/Test.java" });
    }
}``` gives `(0:0) : Error while executing the compiler: java.lang.reflect.InvocationTargetException`.
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I mean, it makes totaly sense! commons-jci-javac is instrumenting javac!

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commons-jci-core is a wrapper that makes exactly this: com.sun.tools.javac.Main.compile(new String[] { ... });

late cargo
#

Seriously?

late cargo
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not javax.compiler

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If it's in com.sun, it's internal meaning you should probably not use it

indigo karma
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It is a public-static-void-main(string[] args)

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Its javac imo

late cargo
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Don't be so sure if you don't use it correctly

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neither have I seen you using JCI version 1.1 with EJC