java.lang.UnsupportedClassVersionError: Bad version number in .class file

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This might be caused by and outdated version of Java, SonarQube now uses Java 8 as default. You might upgrade java or use an older version of SonarQube.

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If you're using intellij plugin of sonarqube, you might have to set the JAVA_HOME ambient variable manually.

Solutions on the web

via incubator-uima-user by Eric Riebling, 1 year ago
Bad version number in .class file
via uima-user by Eric Riebling, 1 year ago
Bad version number in .class file
via Google Groups by Steffen, 2 years ago
Bad version number in .class file
via Google Groups by Matt Raible, 2 years ago
Bad version number in .class file
via Stack Overflow by eskalera
, 2 years ago
Bad version number in .class file
java.lang.UnsupportedClassVersionError: Bad version number in .class file
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at org.apache.uima.analysis_engine.impl.PrimitiveAnalysisEngine_impl.initializeAnalysisComponent(PrimitiveAnalysisEngine_impl.java:202)
at org.apache.uima.analysis_engine.impl.PrimitiveAnalysisEngine_impl.initialize(PrimitiveAnalysisEngine_impl.java:157)
at org.apache.uima.impl.AnalysisEngineFactory_impl.produceResource(AnalysisEngineFactory_impl.java:94)
at org.apache.uima.impl.CompositeResourceFactory_impl.produceResource(CompositeResourceFactory_impl.java:62)
at org.apache.uima.UIMAFramework.produceResource(UIMAFramework.java:258)
at org.apache.uima.UIMAFramework.produceResource(UIMAFramework.java:303)
at org.apache.uima.UIMAFramework.produceAnalysisEngine(UIMAFramework.java:383)
at org.apache.uima.pear.tools.InstallationTester.testAnalysisEngine(InstallationTester.java:219)
at org.apache.uima.pear.tools.InstallationTester.doTest(InstallationTester.java:114)
at org.apache.uima.pear.tools.InstallationController.verifyComponentInstallation(InstallationController.java:1110)
at org.apache.uima.tools.pear.install.InstallPear.installPear(InstallPear.java:388)
at org.apache.uima.tools.pear.install.InstallPear.access$000(InstallPear.java:79)
at org.apache.uima.tools.pear.install.InstallPear$RunInstallation.run(InstallPear.java:108)
at java.lang.Thread.run(Thread.java:595)

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