Gradle Android Error : MethodHandle. Call and MethodHandle.invokeExact
I’m trying to use a SOAP service in my Android application. I’m trying to follow this guide.I get an error when I try to run my app:
Error: MethodHandle.invoke and MethodHandle.invokeExact are only supported starting with Android O (--min-api 26)
I’m on Android N (SDK 25 – I can’t skip to 26 as the error message indicates), which is a brand new project just created by Android Studio.
Here is my project build.gradle file that I didn’t change:
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.4.1'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
Here is my app build.gradle file:
apply plugin: 'com.android.application'
configurations {
jaxb
}
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath("org.springframework.boot:spring-boot-gradle-plugin:2.1.6.RELEASE")
}
}
apply plugin: 'org.springframework.boot'
apply plugin: 'io.spring.dependency-management'
repositories {
mavenCentral()
}
// tag::wsdl[]
task genJaxb {
ext.sourcesDir = "${buildDir}/generatedjava/jaxb"
ext.classesDir = "${buildDir}/classes/jaxb"
ext.schema = "https://lite.realtime.nationalrail.co.uk/OpenLDBWS/wsdl.aspx?ver=2017-10-01"
outputs.dir classesDir
doLast() {
project.ant {
taskdef name: "xjc", classname: "com.sun.tools.xjc.XJCTask",
classpath: configurations.jaxb.asPath
mkdir(dir: sourcesDir)
mkdir(dir: classesDir)
xjc(destdir: sourcesDir, schema: schema,
package: "hello.wsdl") {
arg(value: "-wsdl")
produces(dir: sourcesDir, includes: "**/*.java")
}
javac(destdir: classesDir, source: 1.8, target: 1.8, debug: true,
debugLevel: "lines,vars,source",
classpath: configurations.jaxb.asPath) {
src(path: sourcesDir)
include(name: "**/*.java")
include(name: "*.java")
}
copy(todir: classesDir) {
fileset(dir: sourcesDir, erroronmissingdir: false) {
exclude(name: "**/*.java")
}
}
}
}
}
// end::wsdl[]
android {
compileSdkVersion 29
buildToolsVersion "29.0.0"
defaultConfig {
applicationId "com.example.magicmirror"
minSdkVersion 25
targetSdkVersion 29
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
packagingOptions {
exclude 'META-INF/spring.tooling'
exclude 'META-INF/spring.handlers'
exclude 'META-INF/spring-configuration-metadata.json'
exclude 'META-INF/additional-spring-configuration-metadata.json'
exclude 'META-INF/spring.factories'
exclude 'META-INF/spring.schemas'
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'
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.0.2'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.2.0'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
implementation "org.springframework.boot:spring-boot-starter"
implementation "org.springframework.ws:spring-ws-core"
implementation(files(genJaxb.classesDir).builtBy(genJaxb))
jaxb "com.sun.xml.bind:jaxb-xjc:2.1.7"
}
According to the logs, the exact JAR that caused this issue was org.springframework/spring-core/5.1.8.RELEASE.jar
. compileOptions
Adding block was mentioned in other answers as a fix, but it didn’t fix the problem. How do I fix this?
Best Solution
Have you tried ksoap?
https://github.com/simpligility/ksoap2-android
Looks like it should do SOAP, be alive and work for Android.
The ksoap2-android project provides a lightweight and efficient SOAP
client library for the Android platform.