[DRILL-5256] Exception in thread "main" java.lang.ExceptionInInitializerError

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.7.0, 1.8.0
• Component/s: Client - JDBC
• Labels: jvm

Environment

Windows 7, IBM SDK 1.6 and IBM SDK 1.7

• Assignee: Unassigned
• Reporter: Vasu
• Created: 11/Feb/17 09:22
• Updated: 29/Jun/17 03:00

Description

Below error while connecting to Drill Server

Exception in thread "main" java.lang.ExceptionInInitializerError

at java.lang.J9VMInternals.initialize(J9VMInternals.java:257)

at oadd.org.apache.drill.exec.memory.BaseAllocator.<clinit>(BaseAllocator.java:44)

at java.lang.J9VMInternals.initializeImpl(Native Method)

at java.lang.J9VMInternals.initialize(J9VMInternals.java:235)

at java.lang.J9VMInternals.initialize(J9VMInternals.java:202)

at oadd.org.apache.drill.exec.memory.RootAllocatorFactory.newRoot(RootAllocatorFactory.java:38)

at org.apache.drill.jdbc.impl.DrillConnectionImpl.<init>(DrillConnectionImpl.java:143)

at org.apache.drill.jdbc.impl.DrillJdbc41Factory.newDrillConnection(DrillJdbc41Factory.java:64)

at org.apache.drill.jdbc.impl.DrillFactory.newConnection(DrillFactory.java:69)

at oadd.net.hydromatic.avatica.UnregisteredDriver.connect(UnregisteredDriver.java:126)

at org.apache.drill.jdbc.Driver.connect(Driver.java:72)

at java.sql.DriverManager.getConnection(DriverManager.java:583)

at java.sql.DriverManager.getConnection(DriverManager.java:245)

at com.trianz.drill.ApacheDrillDemo.main(ApacheDrillDemo.java:13)

Caused by: java.lang.NullPointerException

at oadd.io.netty.buffer.PooledByteBufAllocatorL$InnerAllocator.<init>(PooledByteBufAllocatorL.java:93)

at oadd.io.netty.buffer.PooledByteBufAllocatorL.<init>(PooledByteBufAllocatorL.java:56)

at oadd.org.apache.drill.exec.memory.AllocationManager.<clinit>(AllocationManager.java:60)

at java.lang.J9VMInternals.initializeImpl(Native Method)

at java.lang.J9VMInternals.initialize(J9VMInternals.java:235)

... 13 more

When I tried to debug in to source code, following is the place where we are getting NULL POINTER EXCEPTION

drill/exec/memory/base/src/main/java/io/netty/buffer/PooledByteBufAllocatorL.java

Line: 93: this.chunkSize = directArenas[0].chunkSize;

Below is the code snapshot.

public InnerAllocator() {
super(true);

try

{ Field f = PooledByteBufAllocator.class.getDeclaredField("directArenas"); f.setAccessible(true); this.directArenas = (PoolArena<ByteBuffer>[]) f.get(this); }

catch (Exception e)

{ throw new RuntimeException("Failure while initializing allocator. Unable to retrieve direct arenas field.", e); }

this.chunkSize = directArenas[0].chunkSize;

if (memoryLogger.isTraceEnabled()) {

Can anyone please help on this? Thanks in advance.

Thanks,
Vasu T