[IGNITE-9814] JDK11: HadoopClassLoader#nativeLibraries fails because has invalid assumption for ClassLoader type

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.6
• Fix Version/s: 2.7
• Component/s: hadoop
• Labels: Java11
• Ignite Flags: Docs Required
• Assignee: Taras Ledkov
• Reporter: Taras Ledkov
• Created: 08/Oct/18 12:00
• Updated: 20/Feb/19 10:22
• Resolved: 09/Oct/18 06:07

Description

Error:

[2018-10-08 08:43:40,204][ERROR][main][IgniteKernal%grid_secondary] Exception during start processors, node will be stopped and close connections
java.lang.ClassCastException: class java.util.concurrent.ConcurrentHashMap cannot be cast to class java.util.Vector (java.util.concurrent.ConcurrentHashMap and java.util.Vector are in module java.base of loader 'bootstrap')
    at org.apache.ignite.internal.processors.hadoop.HadoopClassLoader.nativeLibraries(HadoopClassLoader.java:270)
    at org.apache.ignite.internal.processors.hadoop.HadoopClassLoader.initializeNativeLibraries0(HadoopClassLoader.java:216)
    at org.apache.ignite.internal.processors.hadoop.HadoopClassLoader.initializeNativeLibraries(HadoopClassLoader.java:172)
    at org.apache.ignite.internal.processors.hadoop.HadoopClassLoader.<init>(HadoopClassLoader.java:141)
    at org.apache.ignite.internal.processors.hadoop.HadoopHelperImpl.commonClassLoader(HadoopHelperImpl.java:78)
    at org.apache.ignite.internal.processors.hadoop.jobtracker.HadoopJobTracker.start(HadoopJobTracker.java:163)
    at org.apache.ignite.internal.processors.hadoop.HadoopProcessor.start(HadoopProcessor.java:90)
    at org.apache.ignite.internal.IgniteKernal.startProcessor(IgniteKernal.java:1692)
    at org.apache.ignite.internal.IgniteKernal.start(IgniteKernal.java:1022)
    at org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.start0(IgnitionEx.java:2033)
    at org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.start(IgnitionEx.java:1728)
    at org.apache.ignite.internal.IgnitionEx.start0(IgnitionEx.java:1156)
    at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:676)
    at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:601)
    at org.apache.ignite.Ignition.start(Ignition.java:323)
    at org.apache.ignite.internal.processors.igfs.IgfsAbstractBaseSelfTest.startGridWithIgfs(IgfsAbstractBaseSelfTest.java:394)
    at org.apache.ignite.internal.processors.hadoop.impl.igfs.Hadoop1DualAbstractTest.startUnderlying(Hadoop1DualAbstractTest.java:118)
    at org.apache.ignite.internal.processors.hadoop.impl.igfs.Hadoop1DualAbstractTest.createSecondaryFileSystemStack(Hadoop1DualAbstractTest.java:84)
    at org.apache.ignite.internal.processors.igfs.IgfsAbstractBaseSelfTest.beforeTestsStarted(IgfsAbstractBaseSelfTest.java:272)
    at org.apache.ignite.testframework.junits.GridAbstractTest.setUp(GridAbstractTest.java:621)
    at org.apache.ignite.testframework.junits.common.GridCommonAbstractTest.setUp(GridCommonAbstractTest.java:494)
    at junit.framework.TestCase.runBare(TestCase.java:139)
    at junit.framework.TestResult$1.protect(TestResult.java:122)
    at junit.framework.TestResult.runProtected(TestResult.java:142)
    at junit.framework.TestResult.run(TestResult.java:125)
    at junit.framework.TestCase.run(TestCase.java:129)
    at junit.framework.TestSuite.runTest(TestSuite.java:255)
    at junit.framework.TestSuite.run(TestSuite.java:250)
    at junit.framework.TestSuite.runTest(TestSuite.java:255)

Issue Links

• Is contained by: IGNITE-8441 Java 9/10/11 Support [2.5-2.7]
• relates to: IGNITE-11189 Support Java 11 for Apache Ignite
• links to: GitHub Pull Request #4925