I'm currently having real problems trying to get the gem Nokogiri to work in my applet. I have the jruby-complete-1.7.3 jar and have attempted to install gems using the normal install line:
java -jar jruby-compelete-1.7.3.jar -S gem install nokogiri
And also I have tried the Gem-In-A-Jar method. At first it works fine, and allows me to eval ruby code and store the data returned. My problem arises when I add in the line:
require 'nokogiri'
While that line works fine in the irb, when trying to access it from the applet I get the following error:
classpath:/META-INF/jruby.home/lib/ruby/shared/rubygems.rb:396 warning: can't
canonicalize loaded names due to security restrictions; disabling
Message: (LoadError) no such file to load -- nokogiri
Stacktrace:
org.jruby.exceptions.RaiseException: (LoadError) no such file to load -- nokogiri
at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1027)
at RUBY.require(classpath:/META-INF/jruby.home/lib/ruby/shared/rubygems/custom_require.rb:36)
at RUBY.(root)(<script>:2)
I simply can't figure out why this exception is occuring. I've tried:
moving the gems manually into the "META-INF/jruby.home/lib/ruby/gems/shared" folder
I've added "require 'rubygems'" above the the nokogiri call.
Accessing the gems via the Gems-in-a-jar method: http://blog.nicksieger.com/articles/2009/01/10/jruby-1-1-6-gems-in-a-jar/
If anyone has an idea where I've gone wrong, or a solution to this issue, I'd greatly appreciate it.
Related
Our application is a RoR app, and currently uses JRuby version 1.7.22, and JRE 8_65. Our app is an on-prem solution, so we use JRuby to host our application on JVM at the target, Windows Server 2012 R2 system. We compile our ruby code, using
jruby -S jrubyc
This takes the .rb file and compiles it to a .class file. In the original .rb, it loads in the class file, like so.
load __FILE__.sub(/\.rb$/, ".class")
This all works with JRuby 1.7.22
Now, we want to update JRuby to 9.0.5.0, but are experiencing some problems when it comes to deploying our application. Basically, that line of code above inside of the .rb file is not working anymore, and we get the error when trying to run a rake db:setup
rake aborted!
LoadError: C:/appname/app/models/app_attribute.class is not compiled Ruby; use java_import to load normal classes
C:/appname/app/models/app_attribute.rb:1:in `<top>'
C:/appname/db/seeds.rb:10:in `<top>'
C:/appname/db/seeds.rb:9:in `block in (root)'
Tasks: TOP => db:setup => db:seed
(See full trace by running task with --trace)
Great. So I replace load with java_import
rake aborted!
ArgumentError: not a valid Java identifier: C:/appname/app/models/app_attribute.class
uri:classloader:/jruby/java/core_ext/object.rb:43:in `block in java_import'
uri:classloader:/jruby/java/core_ext/object.rb:34:in `java_import'
C:/appname/app/models/app_attribute.rb:1:in `<top>'
C:/appname/db/seeds.rb:10:in `<top>'
C:/appname/db/seeds.rb:9:in `block in (root)'
Tasks: TOP => db:setup => db:seed
(See full trace by running task with --trace)
Still not working, no matter what I try. I looked at this post: https://github.com/jruby/jruby/issues/3018
I tried to pass the parameter
jruby -Xaot.loadClasses=true
But I get a warning saying that aot.LoadClasses is not recognized. EVEN THOUGH I see it in the properties when I type
jruby -Xproperties
I have done A LOT of research on this, and have probably have looked at everything on the internet regarding this. Any input will be greatly appreciated. Is there something I missing? I am not fully adept in Java.
Thank you.
might be the same issue as https://github.com/jruby/jruby/issues/3651
which means you'll need to wait for 9.1 or use a snapshot http://ci.jruby.org/
since, the error is slightly different you should look into reproducing with snapshot and if it fails (might be Windows related) a step-by-step reproduction might speed-up getting the issue resolved.
jruby -Xaot.loadClasses=true
this is not needed with Warbler
But I get a warning saying that aot.LoadClasses is not recognized. EVEN THOUGH I see it in the properties when I type
hmm, could you reproduce this with an empty script and no JRUBY_OPTS ?
I have done A LOT of research on this, and have probably have looked at everything on the internet regarding this. Any input will be greatly appreciated.
you might want to try looking into the issue next time :) or considering getting some support
Is there something I missing? I am not fully adept in Java.
you shouldn't be missing anything - its not a Java issue ...
I have a program that uses Sqlite database. It works fine on Windows (exported jar or directly in Eclipse) but when I move it to linux server (plan is to use run it at certain intervals, cron job). I'm exporting it to jar from Eclipse and packing the sqlite-jdbc4-3.8.2-SNAPSHOT.jar with it. Error is this:
/$ /usr/bin/java -jar /home/username/Software.jar /home/username/
java.lang.UnsatisfiedLinkError: /tmp/sqlite-3.8.2-amd64-libsqlitejdbc.so: /tmp/sqlite-3.8.2-amd64-libsqlitejdbc.so: failed to map segment from shared object: Operation not permitted
Exception in thread "main" java.lang.UnsatisfiedLinkError: org.sqlite.core.NativeDB._open(Ljava/lang/String;I)V
at org.sqlite.core.NativeDB._open(Native Method)
at org.sqlite.core.DB.open(DB.java:161)
at org.sqlite.core.CoreConnection.open(CoreConnection.java:145)
at org.sqlite.core.CoreConnection.<init>(CoreConnection.java:66)
at org.sqlite.jdbc3.JDBC3Connection.<init>(JDBC3Connection.java:21)
at org.sqlite.jdbc4.JDBC4Connection.<init>(JDBC4Connection.java:23)
at org.sqlite.SQLiteConnection.<init>(SQLiteConnection.java:44)
at org.sqlite.JDBC.createConnection(JDBC.java:113)
at org.sqlite.JDBC.connect(JDBC.java:87)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:207)
....
So before you ask, I've made sure that sqlite-3.8.2-amd64-libsqlitejdbc.so in /tmp/ has all permissions (rwxrwxrwx). Still that native library is causing problems. It does get copied in /tmp/ folder though. That being said I totally suck in Linux... and for that reason I'm pretty much clueless what to try next.
What should I do? Switch connector?
EDIT:
Solved the problem by using System.setProperty("java.io.tmpdir", "/home/username/"); Apparently it for some reason couldn't execute the native library from tmp folder... Probably because it was created by root. Also I had to revert back to sqlite-jdbc-3.7.2.jar because the new one crashes on linux.
I had same problem, and I found the solution in this GitHub issue:
JAVA_OPTS=-Djava.io.tmpdir=/path/to/some/other/tmpdir bin/cerebro
Also look at this other SO answer.
I am continuing to have trouble with the import.bat file for the Neo4j batch importer. I started a new thread as the original problem was resolved.
from the command prompt I run
import.bat test.db sample\nodes.csv sample\rels.csv
With some variations on the path listing for the files, including absolute paths. I continue to get the following error message
The system cannot find the path specified.
Error: Could not find or load main class org.neo4j.batchimport.Importer
I also tried running import.sh from Cygwin and in my Debian VM but keep getting the error
Error: Could not find or load main class org.neo4j.batchimport.Importer
What am I doing wrong?
Please download the zip-file, not the github clone.
This is a pre-build binary as outlined in the readme, that doesn't require that you have to have maven installed to build it.
I am trying to embed JRuby in a Java project. I am using jruby-complete-1.7.4.jar and ScriptingContainer.
For some reason, the following script throws error.
ScriptingContainer container = new ScriptingContainer();
container.runScriptlet("require 'net/https'");
This fails with the exception
load error: openssl -- java.lang.NoClassDefFoundError: Could not initialize class org.jruby.ext.openssl.ASN1.
This happens only in few computers. I don't have jruby-openssl and bouncy castle gem installed. My class path contains only jruby-complete-1.7.4.jar. I am wondering why this error happens and what should be done to work around this problem? How can this work on
a computer and fails on a different one? Any help to debug the issue would be great.
Jruby version - 1.7.4
System - Mac OS X 10.8.4
You do not need jruby-openssl separately .. it should be bundled with jruby jar.. make sure you do not have any old jruby-openssl or bouncycastle installed.
I am completely new to Jena/TDB. All I want to do is to load data from some sample rdf, N3 etc file using tdb scripts or through java api.
I am tried to use tbdloader on Cygwin to load data (tdb-0.9.0, on Windows XP with IBM Java 1.6). Following are the command that I ran:
$ export TDBROOT=/cygdrive/d/Project/Store_DB/jena-tdb-0.9.0-incubating
$ export PATH=$TDBROOT/bin:$PATH
I also changed classpath for java in the tdbloader script as mentioned at tdbloader on Cygwin: java.lang.NoClassDefFoundError :
exec java $JVM_ARGS $SOCKS -cp "PATH_OF_JAR_FILES" "tdb.$TDB_CMD" $TDB_SPEC "$#"
So when I run $ tdbloader --help it shows the help correctly.
But when I run
$ tdbloader --loc /cygdrive/d/Project/Store_DB/data1
OR
$ tdbloader --loc /cygdrive/d/Project/Store_DB/data1 test.rdf
I am getting following exception:
com.hp.hpl.jena.tdb.base.file.FileException: Failed to open: d:\cygdrive\d\Project\Store_DB\data1\node2id.idn (mode=rw)
at com.hp.hpl.jena.tdb.base.file.ChannelManager.open$(ChannelManager.java:83)
at com.hp.hpl.jena.tdb.base.file.ChannelManager.openref$(ChannelManager.java:58)
at com.hp.hpl.jena.tdb.base.file.ChannelManager.acquire(ChannelManager.java:47)
at com.hp.hpl.jena.tdb.base.file.FileBase.<init>(FileBase.java:57)
at com.hp.hpl.jena.tdb.base.file.FileBase.<init>(FileBase.java:46)
at com.hp.hpl.jena.tdb.base.file.FileBase.create(FileBase.java:41)
at com.hp.hpl.jena.tdb.base.file.BlockAccessBase.<init>(BlockAccessBase.java:46)
at com.hp.hpl.jena.tdb.base.block.BlockMgrFactory.createStdFile(BlockMgrFactory.java:98)
at com.hp.hpl.jena.tdb.base.block.BlockMgrFactory.createFile(BlockMgrFactory.java:82)
at com.hp.hpl.jena.tdb.base.block.BlockMgrFactory.create(BlockMgrFactory.java:58)
at com.hp.hpl.jena.tdb.setup.Builder$BlockMgrBuilderStd.buildBlockMgr(Builder.java:196)
at com.hp.hpl.jena.tdb.setup.Builder$RangeIndexBuilderStd.createBPTree(Builder.java:165)
at com.hp.hpl.jena.tdb.setup.Builder$RangeIndexBuilderStd.buildRangeIndex(Builder.java:134)
at com.hp.hpl.jena.tdb.setup.Builder$IndexBuilderStd.buildIndex(Builder.java:112)
at com.hp.hpl.jena.tdb.setup.Builder$NodeTableBuilderStd.buildNodeTable(Builder.java:85)
at com.hp.hpl.jena.tdb.setup.DatasetBuilderStd$NodeTableBuilderRecorder.buildNodeTable(DatasetBuilderStd.java:389)
at com.hp.hpl.jena.tdb.setup.DatasetBuilderStd.makeNodeTable(DatasetBuilderStd.java:300)
at com.hp.hpl.jena.tdb.setup.DatasetBuilderStd._build(DatasetBuilderStd.java:167)
at com.hp.hpl.jena.tdb.setup.DatasetBuilderStd.build(DatasetBuilderStd.java:157)
at com.hp.hpl.jena.tdb.setup.DatasetBuilderStd.build(DatasetBuilderStd.java:70)
at com.hp.hpl.jena.tdb.StoreConnection.make(StoreConnection.java:132)
at com.hp.hpl.jena.tdb.transaction.DatasetGraphTransaction.<init>(DatasetGraphTransaction.java:46)
at com.hp.hpl.jena.tdb.sys.TDBMakerTxn._create(TDBMakerTxn.java:50)
at com.hp.hpl.jena.tdb.sys.TDBMakerTxn.createDatasetGraph(TDBMakerTxn.java:38)
at com.hp.hpl.jena.tdb.TDBFactory._createDatasetGraph(TDBFactory.java:166)
at com.hp.hpl.jena.tdb.TDBFactory.createDatasetGraph(TDBFactory.java:74)
at com.hp.hpl.jena.tdb.TDBFactory.createDataset(TDBFactory.java:53)
at tdb.cmdline.ModTDBDataset.createDataset(ModTDBDataset.java:95)
at arq.cmdline.ModDataset.getDataset(ModDataset.java:34)
at tdb.cmdline.CmdTDB.getDataset(CmdTDB.java:137)
at tdb.cmdline.CmdTDB.getDatasetGraph(CmdTDB.java:126)
at tdb.cmdline.CmdTDB.getDatasetGraphTDB(CmdTDB.java:131)
at tdb.tdbloader.loadQuads(tdbloader.java:163)
at tdb.tdbloader.exec(tdbloader.java:122)
at arq.cmdline.CmdMain.mainMethod(CmdMain.java:97)
at arq.cmdline.CmdMain.mainRun(CmdMain.java:59)
at arq.cmdline.CmdMain.mainRun(CmdMain.java:46)
at tdb.tdbloader.main(tdbloader.java:53)
Caused by: java.io.FileNotFoundException: d:\cygdrive\d\Project\Store_DB\data1\node2id.idn (The system cannot find the path specified.)
at java.io.RandomAccessFile.open(Native Method)
at java.io.RandomAccessFile.<init>(RandomAccessFile.java:222)
at java.io.RandomAccessFile.<init>(RandomAccessFile.java:107)
at com.hp.hpl.jena.tdb.base.file.ChannelManager.open$(ChannelManager.java:80)
... 37 more
I am not sure what node2id.idn file is and why is it expecting it?
The file node2id.idn is one of TDB's internal index files. It's not something that you have to create or manage for yourself. I've just tried tdbloader on cygwin myself, it it worked OK for me. I can think of two basic possibilities:
your disk is full
the TDB index is corrupted
If this is the first file you are loading into an otherwise emtpy TDB, the second possibility is unlikely. If you are loading into a non-empty TDB, try deleting the TDB image and starting again. Note that TDB by itself does not manage concurrent writes: if you have more than one process writing to a single TDB image, you must handle locking at the application level, or use TDB's transactions.
The final possibility, of course, is that your disk is flaky. You might want to try your code on another machine.
If none of these suggestions help, please send a complete minimal test case to the Jena users list.