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  • Java 11 dan Bagaimana cara memperbaiki java.lang. TypeNotPresentException: Ketik javax.xml.bind.JAXBContext Exception?

Java 11 dan Bagaimana cara memperbaiki java.lang. TypeNotPresentException: Ketik javax.xml.bind.JAXBContext Exception?

Diterbitkan: 2018-12-15

Java11 dan javax.xml.bind.JAXBContext Pengecualian

Apakah Anda menghadapi java.lang.TypeNotPresentException : Ketik javax.xml.bind.JAXBContext not present exception?

Hari ini saat menjalankan layanan RESTful saya di Eclipse saya, saya melihat kesalahan javax.xml.bind.JAXBContext di konsol Eclipse saya. Program yang sama berjalan dengan baik sejak tahun lalu tanpa masalah apapun.

Saya mulai berpikir tentang perubahan yang terjadi di lingkungan lokal saya. Tidak ada pemeriksaan kode yang terjadi sejak tahun lalu jadi saya pikir ini terutama karena pemutakhiran Java 11 terbaru saya.

Seperti yang Anda lihat di Semua tentang Java 11 saya sebelumnya, tidak ada lagi dukungan untuk modul Java EE di dalamnya. Java 11 menghapus dukungan untuk java.xml.bind – yang mendefinisikan Java Architecture for XML Binding (JAXB) API.

Dia adalah jejak-tumpukan lengkap:

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Dec 14 , 2018 1 : 23 : 19 PM com . sun . jersey . api . core . servlet . WebAppResourceConfig init
INFO : Scanning for root resource and provider classes in the Web app resource paths :
  / WEB - INF / lib
  / WEB - INF / classes
Dec 14 , 2018 1 : 23 : 20 PM com . sun . jersey . server . impl . application . WebApplicationImpl _initiate
INFO : Initiating Jersey application , version 'Jersey: 1.17.1 02/28/2013 12:47 PM'
Dec 14 , 2018 1 : 23 : 20 PM org . apache . catalina . core . ApplicationContext log
SEVERE : StandardWrapper . Throwable
java . lang . TypeNotPresentException : Type javax . xml . bind . JAXBContext not present
at java . base / sun . reflect . generics . factory . CoreReflectionFactory . makeNamedType ( CoreReflectionFactory . java : 117 )
at java . base / sun . reflect . generics . visitor . Reifier . visitClassTypeSignature ( Reifier . java : 125 )
at java . base / sun . reflect . generics . tree . ClassTypeSignature . accept ( ClassTypeSignature . java : 49 )
at java . base / sun . reflect . generics . visitor . Reifier . reifyTypeArguments ( Reifier . java : 68 )
at java . base / sun . reflect . generics . visitor . Reifier . visitClassTypeSignature ( Reifier . java : 138 )
at java . base / sun . reflect . generics . tree . ClassTypeSignature . accept ( ClassTypeSignature . java : 49 )
at java . base / sun . reflect . generics . repository . ClassRepository . computeSuperInterfaces ( ClassRepository . java : 117 )
at java . base / sun . reflect . generics . repository . ClassRepository . getSuperInterfaces ( ClassRepository . java : 95 )
at java . base / java . lang . Class . getGenericInterfaces ( Class . java : 1138 )
at com . sun . jersey . core . reflection . ReflectionHelper . getClass ( ReflectionHelper . java : 533 )
at com . sun . jersey . core . reflection . ReflectionHelper . getClass ( ReflectionHelper . java : 529 )
at com . sun . jersey . core . spi . factory . ContextResolverFactory . getParameterizedType ( ContextResolverFactory . java : 202 )
at com . sun . jersey . core . spi . factory . ContextResolverFactory . init ( ContextResolverFactory . java : 89 )
at org . apache . catalina . util . LifecycleBase . start ( LifecycleBase . java : 183 )
at org . apache . catalina . core . StandardServer . startInternal ( StandardServer . java : 801 )
at org . apache . catalina . util . LifecycleBase . start ( LifecycleBase . java : 183 )
at org . apache . catalina . startup . Catalina . start ( Catalina . java : 695 )
at java . base / jdk . internal . reflect . NativeMethodAccessorImpl . invoke0 ( Native Method )
at java . base / jdk . internal . reflect . NativeMethodAccessorImpl . invoke ( NativeMethodAccessorImpl . java : 62 )
at java . base / jdk . internal . reflect . DelegatingMethodAccessorImpl . invoke ( DelegatingMethodAccessorImpl . java : 43 )
at java . base / java . lang . reflect . Method . invoke ( Method . java : 566 )
at org . apache . catalina . startup . Bootstrap . start ( Bootstrap . java : 350 )
at org . apache . catalina . startup . Bootstrap . main ( Bootstrap . java : 492 )
Caused by : java . lang . ClassNotFoundException : javax . xml . bind . JAXBContext
at org . apache . catalina . loader . WebappClassLoaderBase . loadClass ( WebappClassLoaderBase . java : 1328 )
at org . apache . catalina . loader . WebappClassLoaderBase . loadClass ( WebappClassLoaderBase . java : 1157 )
at java . base / java . lang . Class . forName0 ( Native Method )
at java . base / java . lang . Class . forName ( Class . java : 398 )
at java . base / sun . reflect . generics . factory . CoreReflectionFactory . makeNamedType ( CoreReflectionFactory . java : 114 )
. . . 59 more

Dan itulah alasan saya mulai mendapatkan pengecualian di atas. Paket Java 11 untuk javax.xml.bind tidak ada lagi.

  • Versi Java 7: Termasuk dan Bekerja
  • Versi Java 8: Termasuk dan Bekerja
  • Versi Java 9: ​​Tidak digunakan lagi
  • Versi Java 10: Tidak digunakan lagi
  • Versi Java 11: Dihapus

Untuk memperbaiki masalah ini, Anda perlu menambahkan dependensi Maven JAXB di bawah ini secara manual ke proyek Anda.

add to pom.xml
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< dependency >
< groupId > com . sun . xml . bind < / groupId >
< artifactId > jaxb - core < / artifactId >
< version > 2.3.0.1 < / version >
< / dependency >
< dependency >
< groupId > javax . xml . bind < / groupId >
< artifactId > jaxb - api < / artifactId >
< version > 2.3.1 < / version >
< / dependency >
< dependency >
< groupId > com . sun . xml . bind < / groupId >
< artifactId > jaxb - impl < / artifactId >
< version > 2.3.1 < / version >
< / dependency >

Ini file pom.xml lengkap saya jika diperlukan:

complete pom.xml
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< 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 > CrunchifyRESTfulServiceVersion < / groupId >
< artifactId > CrunchifyRESTfulServiceVersion < / artifactId >
< version > 0.0.1 - SNAPSHOT < / version >
< packaging > war < / packaging >
< build >
< sourceDirectory > src < / sourceDirectory >
< plugins >
< plugin >
< artifactId > maven - compiler - plugin < / artifactId >
< version > 3.8.0 < / 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 > com . sun . xml . bind < / groupId >
< artifactId > jaxb - core < / artifactId >
< version > 2.3.0.1 < / version >
< / dependency >
< dependency >
< groupId > javax . xml . bind < / groupId >
< artifactId > jaxb - api < / artifactId >
< version > 2.3.1 < / version >
< / dependency >
< dependency >
< groupId > com . sun . xml . bind < / groupId >
< artifactId > jaxb - impl < / artifactId >
< version > 2.3.1 < / version >
< / dependency >
< / dependencies >
< / project >

Coba bersihkan proyek Eclipse Anda dan coba jalankan server Tomcat Anda lagi. Anda seharusnya tidak melihat masalah ini lagi.

Selamat coding dan beri tahu saya jika Anda masih menghadapi pengecualian ini setelah menambahkan dependensi Maven di atas.