JCEF ICU Check Failed

I seem to be continually coming against a wall in getting chromium running with JCEF in eclipse. I was able to get to the point where the native functions are discovered but am still unable to complete initialization. I set the LD_PRELOAD variable. I am running both the MainFrame.java class and custom Scala code and run into the same problem in each. Is there a way to resolve this?

System:

OS: Ubuntu 16.04
JCEF version 3
CEF version 3
Java Jdk 8

Structure and Configuration:

Everything is under the binary distribution structure. I imported the jars as a library, added the native library path to the jcef jar and imported it into my project.

I setup the run configuration with the environment variables:

Display = :0.0
LD_PRELOAD = /path/to/libcef.so

All of my libraries and *.pak files are in the same directory and a subdirectory where the libcef.so is located (the binary distribution) as are the chrome sandbox and helpers.

Code and Error

The code fails after the following:

  println("Generating Handlers")
  CefApp.addAppHandler(Handlers.getHandlerAdapter)
  private var settings = new CefSettings
  settings.windowless_rendering_enabled = useOSR
  println("Starting App")
  private final val cefApp : CefApp = if(commandLineArgs != null && commandLineArgs.size > 0) CefApp.getInstance(ChromeCommandLineParser.parse(commandLineArgs)) else CefApp.getInstance(settings)
  println("Creating Client")
  private final val client : CefClient = cefApp.createClient()

The following output results:

Starting
Generating Handlers
Starting App
Creating Client
initialize on Thread[AWT-EventQueue-0,6,main] with library path /home/XXXXX/jcef/src/binary_distrib/linux64/bin/lib/linux64
[0413/135633:ERROR:icu_util.cc(157)] Invalid file descriptor to ICU data received.
[0413/135633:FATAL:content_main_runner.cc(700)] Check failed: base::i18n::InitializeICU(). 
#0 0x7ff8fa94a62e base::debug::StackTrace::StackTrace()
#1 0x7ff8fa95f88b logging::LogMessage::~LogMessage()
#2 0x7ff8fd7588d4 content::ContentMainRunnerImpl::Initialize()
#3 0x7ff8fa857962 CefContext::Initialize()
#4 0x7ff8fa85775b CefInitialize()
#5 0x7ff8fa80a9b8 cef_initialize
#6 0x7ff8d6946914 CefInitialize()
#7 0x7ff8d690200f Java_org_cef_CefApp_N_1Initialize
#8 0x7ff8de207994 <unknown>

All help is appreciated. Thanks

Solution

I had a lot of problems with this too, until I created the symlinks to "icudtl.dat", "natives_blob.bin" and "snapshot_blob.bin" under the $jdk/bin directory, instead of $jdk/jre/bin.

Now I don't get this error any more.

Using the example in https://bitbucket.org/chromiumembedded/java-cef/wiki/BranchesAndBuilding

I changed this...

$ sudo ln -s /path/to/java-cef/src/third_party/cef/linux64/Resources/icudtl.dat /usr/lib/jvm/java-8-oracle/jre/bin/icudtl.dat

$ sudo ln -s /path/to/java-cef/src/third_party/cef/linux64/Debug/natives_blob.bin /usr/lib/jvm/java-8-oracle/jre/bin/natives_blob.bin

$ sudo ln -s /path/to/java-cef/src/third_party/cef/linux64/Debug/snapshot_blob.bin /usr/lib/jvm/java-8-oracle/jre/bin/snapshot_blob.bin

To this...

$ sudo ln -s /path/to/java-cef/src/third_party/cef/linux64/Resources/icudtl.dat /usr/lib/jvm/java-8-oracle/bin/icudtl.dat

$ sudo ln -s /path/to/java-cef/src/third_party/cef/linux64/Debug/natives_blob.bin /usr/lib/jvm/java-8-oracle/bin/natives_blob.bin

$ sudo ln -s /path/to/java-cef/src/third_party/cef/linux64/Debug/snapshot_blob.bin /usr/lib/jvm/java-8-oracle/bin/snapshot_blob.bin