[aspectj-users] I can not get the correct line number

[Hirokawa Yuya]

Hello

I am using @ AnfterReturning annotation.
We create a function to keep line numbers as logs.

When there are multiple returns in the method,
The line number always points to the last return.
Is it impossible to get a line number other than the last return?

environment:
org.aspectj:aspectjrt:1.9.1
Android Studio 3.1.2
Build #AI-173.4720617, built on April 14, 2018
JRE: 1.8.0_152-release-1024-b02 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Windows 10 10.0

app/gradle
import org.aspectj.bridge.IMessage
import org.aspectj.bridge.MessageHandler
import org.aspectj.tools.ajc.Main

buildscript {
    repositories {
        jcenter()
        mavenCentral()
    }

    dependencies {
        classpath 'org.aspectj:aspectjtools:1.9.1'
    }
}
apply plugin: 'com.android.application'

android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "jp.co.hba.milesmimi"
        minSdkVersion 23
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner 
"android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 
'proguard-rules.pro'
        }
    }

    applicationVariants.all { variant ->

        variant.javaCompiler.doLast {
            String[] args = ["-showWeaveInfo",
                             "-1.9",
                             "-inpath", javaCompile.destinationDir.toString(),
                             "-aspectpath", javaCompile.classpath.asPath,
                             "-d", javaCompile.destinationDir.toString(),
                             "-classpath", javaCompile.classpath.asPath,
                             "-bootclasspath", 
project.android.bootClasspath.join(
                    File.pathSeparator)]

            MessageHandler handler = new MessageHandler(true)
            new Main().run(args, handler)

            def log = project.logger
            for (IMessage message : handler.getMessages(null, true)) {
                switch (message.getKind()) {
                    case IMessage.ABORT:
                    case IMessage.ERROR:
                    case IMessage.FAIL:
                        log.error message.message, message.thrown
                        break
                    case IMessage.WARNING:
                    case IMessage.INFO:
                        log.info message.message, message.thrown
                        break
                    case IMessage.DEBUG:
                        log.debug message.message, message.thrown
                        break
                }
            }
        }
    }

    packagingOptions {
        exclude 'META-INF/DEPENDENCIES'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/LICENSE.txt'
        exclude 'META-INF/license.txt'
        exclude 'META-INF/NOTICE'
        exclude 'META-INF/NOTICE.txt'
        exclude 'META-INF/notice.txt'
        exclude 'META-INF/ASL2.0'
        exclude 'META-INF/INDEX.LIST'
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:support-v4:27.1.1'
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.0'
    implementation 'com.journeyapps:zxing-android-embedded:3.6.0'
    implementation 'com.fasterxml.jackson.core:jackson-databind:2.9.5'
    implementation 'org.apache.httpcomponents:httpclient:4.5.5'
    implementation 'com.squareup.retrofit2:retrofit:2.4.0'
    implementation 'com.squareup.retrofit2:converter-jackson:2.4.0'
    implementation 'io.reactivex.rxjava2:rxandroid:2.0.2'
    implementation 'io.reactivex.rxjava2:rxjava:2.1.14'
    implementation 'com.google.dagger:dagger:2.16'
    annotationProcessor 'com.google.dagger:dagger-android-processor:2.16'
    annotationProcessor 'com.google.dagger:dagger-compiler:2.16'
    implementation 'com.jakewharton:butterknife:8.8.1'
    implementation 'org.aspectj:aspectjrt:1.9.1'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 
'com.android.support.test.espresso:espresso-core:3.0.2'
}

MyLog.java(Excerpt)
package milesmimi.util;

import ...

@Aspect
public class MyLog {
        @Pointcut("execution(* *(..)) && !within(milesmimi.util.MyLog) && if()")
        public static boolean isRun() {
                StackTraceElement[] stackTrace = new 
Exception().getStackTrace();
                return stackTrace.length >= 3;
        }

        @AfterReturning(value = "isRun()", returning = "returnValue")
        public void end(Object returnValue) {
                StackTraceElement ste = (new Throwable()).getStackTrace()[1];
                System.out.println("LineNumber=" + ste.getLineNumber());
        }
}

Sample.java
public class Sample {
        private static Sample instance;
        public static Sample getInstance() {
                if (instance != null) {
                        return instance;        // <- I can not get the line 
number when I end here
                } else {
                        instance = new Sample();
                        return instance;        
                }
        }
}

Thank you.
yuuya
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