Getting "Incompatible magic value 0" while on cmd javac -version

Question

I am getting error while open my eclipse and when i cmad javac -version i am getting error

"Exception in thread "main" java.lang.ClassFormatError: Incompatible magic value 0 in class file javax/tools/StandardJavaFileManager"

Could you please help me to fix this

Os : windows 10
java versions
java version "11.0.6" 2020-01-14 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.6+8-LTS)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.6+8-LTS, mixed mode)

Stack Trace

  at java.base/java.lang.ClassLoader.defineClass2(Native Method)
        at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1108)
        at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:206)
        at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:759)
        at java.base/jdk.internal.loader.BuiltinClassLoader.findClassInModuleOrNull(BuiltinClassLoader.java:680)
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:605)
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:640)
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:609)
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:579)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
        at java.base/java.lang.ClassLoader.defineClass2(Native Method)
        at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1108)
        at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:206)
        at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:759)
        at java.base/jdk.internal.loader.BuiltinClassLoader.findClassInModuleOrNull(BuiltinClassLoader.java:680)
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:605)
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:579)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
        at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:169)
        at jdk.compiler/com.sun.tools.javac.Main.compile(Main.java:57)
        at jdk.compiler/com.sun.tools.javac.Main.main(Main.java:43)

Your Java insallation seems to be broken. So try to uninstall your Java 11.0.6 and install the newer 11.0.8 instead (e.g. from adoptopenjdk.net which will provide longer long term support for free than those from Oracle). — howlger

howlger howlger · Accepted Answer · 2020-09-28T14:54:07

Your Java insallation seems to be broken.

So, try to uninstall your Java 11.0.6 and install the newer Java 11.0.8 instead (e.g. from adoptopenjdk.net which will provide longer long term support for free than the one from Oracle you have; or Java 11.0.8 from Oracle or from somewhere else which should work too).

Getting "Incompatible magic value 0" while on cmd javac -version

1 Answers