Unable to install plugin on Bamboo server 6.10.3

[Umesh Waghode]

We have a plugin that installs successfully on Bamboo server 7.0.0rc1, 7.1.3 and 7.2.x however it fails to install on 6.10.3 or 6.10.6 .

Similar issues on the communicate indicates problems related to Java 8 lambdas or packages like lombok.  We have removed both references but still it fails to install.

Are there any Java 8 features specific imcompatibilities or any specific known issues on 6.10.x versions.

Enabling root logger at debug level does not give any specific error message other than  'ScaningPluginLoader unable to find Factory'

Exception in the log file is as below:

2021-03-22 13:00:05,359 ERROR [localhost-startStop-1] [ScanningPluginLoader] Unable to deploy plugin 'com.sample.bamboo-plugin' from 'Unit: D:\myplugin.jar (1616398064014)'.
2021-03-22 13:00:05,359 ERROR [localhost-startStop-1] [ScanningPluginLoader] Because of the following exception:
com.atlassian.plugin.PluginParseException: Unable to scan for host components in plugin classes
at com.atlassian.plugin.osgi.factory.transform.stage.HostComponentSpringStage.execute(HostComponentSpringStage.java:67)
at com.atlassian.plugin.osgi.factory.transform.DefaultPluginTransformer.transform(DefaultPluginTransformer.java:140)
at com.atlassian.plugin.osgi.factory.OsgiPluginFactory.createOsgiPluginJar(OsgiPluginFactory.java:329)
at com.atlassian.plugin.osgi.factory.OsgiPluginFactory.create(OsgiPluginFactory.java:231)
at com.atlassian.plugin.loaders.ScanningPluginLoader.deployPluginFromUnit(ScanningPluginLoader.java:142)
at com.atlassian.plugin.loaders.ScanningPluginLoader.loadAllPlugins(ScanningPluginLoader.java:87)
at com.atlassian.plugin.loaders.PermissionCheckingPluginLoader.loadAllPlugins(PermissionCheckingPluginLoader.java:28)
at com.atlassian.plugin.manager.DefaultPluginManager.earlyStartup(DefaultPluginManager.java:524)
at com.atlassian.plugin.manager.DefaultPluginManager.init(DefaultPluginManager.java:503)
at com.atlassian.bamboo.container.BambooContainer.init(BambooContainer.java:212)
at com.atlassian.bamboo.container.BambooContainer.initialise(BambooContainer.java:197)
at com.atlassian.bamboo.upgrade.UpgradeLauncher.initialiseBambooContainer(UpgradeLauncher.java:184)
at com.atlassian.bamboo.upgrade.UpgradeLauncher.upgradeAndStartBamboo(UpgradeLauncher.java:97)
at com.atlassian.bamboo.upgrade.UpgradeLauncher.contextInitialized(UpgradeLauncher.java:41)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4852)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5313)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:753)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:729)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:974)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1850)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: Error parsing class file
at com.atlassian.plugin.osgi.util.ClassBinaryScanner.scanClassBinary(ClassBinaryScanner.java:58)
at com.atlassian.plugin.osgi.factory.transform.stage.HostComponentSpringStage.findUsedHostComponents(HostComponentSpringStage.java:193)
at com.atlassian.plugin.osgi.factory.transform.stage.HostComponentSpringStage.execute(HostComponentSpringStage.java:65)
... 26 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 19
at aQute.bnd.osgi.Clazz.parseClassFile(Clazz.java:579)
at aQute.bnd.osgi.Clazz.parseClassFile(Clazz.java:497)
at aQute.bnd.osgi.Clazz.parseClassFileWithCollector(Clazz.java:486)
at com.atlassian.plugin.osgi.util.ClassBinaryScanner.scanClassBinary(ClassBinaryScanner.java:37)