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QtJambi5+ Building Process

I am trying to build QtJambi5+ from source but I am completely stuck. It seems that something fails after several hours of compiling...
I've got the sources files from here:
https://github.com/OmixVisualization/qtjambi5/wiki/How-to-build-QtJambi
I am supposed to have all requeriments. After some hours I get a failure message like this:
BUILD FAILED
/opt/qtjambi5/antfiles/java.xml:36: The following error occurred while
executing this line: /opt/qtjambi5/src/java/qtjambi/modules.xml:4: The
following error occurred while executing this line:
/opt/qtjambi5/src/java/qtjambi/QtJambi/build.xml:11: The following
error occurred while executing this line:
/opt/qtjambi5/src/java/qtjambi/QtJambi/build.xml:25: The following
error occurred while executing this line:
/opt/qtjambi5/src/java/qtjambi/modules.xml:254: Compile failed; see
the compiler error output for details. at
org.apache.tools.ant.ProjectHelper.addLocationToBuildException(ProjectHelper.java:571)
at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:440) at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source) at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
at org.apache.tools.ant.Task.perform(Task.java:350) at
org.apache.tools.ant.Target.execute(Target.java:449) at
org.apache.tools.ant.Target.performTasks(Target.java:470) at
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1391)
at org.apache.tools.ant.Project.executeTarget(Project.java:1364) at
org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1254) at
org.apache.tools.ant.Main.runBuild(Main.java:830) at
org.apache.tools.ant.Main.startAnt(Main.java:223) at
org.apache.tools.ant.launch.Launcher.run(Launcher.java:284) at
org.apache.tools.ant.launch.Launcher.main(Launcher.java:101) Caused
by: /opt/qtjambi5/src/java/qtjambi/modules.xml:4: The following error
occurred while executing this line:
/opt/qtjambi5/src/java/qtjambi/QtJambi/build.xml:11: The following
error occurred while executing this line:
/opt/qtjambi5/src/java/qtjambi/QtJambi/build.xml:25: The following
error occurred while executing this line:
/opt/qtjambi5/src/java/qtjambi/modules.xml:254: Compile failed; see
the compiler error output for details. at
org.apache.tools.ant.ProjectHelper.addLocationToBuildException(ProjectHelper.java:571)
at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:440) at
org.apache.tools.ant.taskdefs.SubAnt.execute(SubAnt.java:306) at
org.apache.tools.ant.taskdefs.SubAnt.execute(SubAnt.java:225) at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source) at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
at org.apache.tools.ant.Task.perform(Task.java:350) at
org.apache.tools.ant.Target.execute(Target.java:449) at
org.apache.tools.ant.Target.performTasks(Target.java:470) at
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1391)
at
org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:36)
at org.apache.tools.ant.Project.executeTargets(Project.java:1254) at
org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:437) ... 16 more
Caused by: /opt/qtjambi5/src/java/qtjambi/QtJambi/build.xml:11: The
following error occurred while executing this line:
/opt/qtjambi5/src/java/qtjambi/QtJambi/build.xml:25: The following
error occurred while executing this line:
/opt/qtjambi5/src/java/qtjambi/modules.xml:254: Compile failed; see
the compiler error output for details. at
org.apache.tools.ant.ProjectHelper.addLocationToBuildException(ProjectHelper.java:571)
at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:440) at
org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:106)
at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source) at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
at org.apache.tools.ant.Task.perform(Task.java:350) at
org.apache.tools.ant.Target.execute(Target.java:449) at
org.apache.tools.ant.Target.performTasks(Target.java:470) at
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1391)
at
org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:36)
at org.apache.tools.ant.Project.executeTargets(Project.java:1254) at
org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:437) ... 30 more
Caused by: /opt/qtjambi5/src/java/qtjambi/QtJambi/build.xml:25: The
following error occurred while executing this line:
/opt/qtjambi5/src/java/qtjambi/modules.xml:254: Compile failed; see
the compiler error output for details. at
org.apache.tools.ant.ProjectHelper.addLocationToBuildException(ProjectHelper.java:571)
at org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:440) at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source) at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
at org.apache.tools.ant.Task.perform(Task.java:350) at
org.apache.tools.ant.Target.execute(Target.java:449) at
org.apache.tools.ant.Target.performTasks(Target.java:470) at
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1391)
at
org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:36)
at org.apache.tools.ant.Project.executeTargets(Project.java:1254) at
org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:437) ... 43 more
Caused by: /opt/qtjambi5/src/java/qtjambi/modules.xml:254: Compile
failed; see the compiler error output for details. at
org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:1409) at
org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:1117) at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source) at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
at org.apache.tools.ant.Task.perform(Task.java:350) at
java.util.Vector.forEach(Vector.java:1277) at
org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:67)
at net.sf.antcontrib.logic.IfTask.execute(IfTask.java:197) at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
at org.apache.tools.ant.TaskAdapter.execute(TaskAdapter.java:155) at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source) at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498) at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:99)
at org.apache.tools.ant.Task.perform(Task.java:350) at
org.apache.tools.ant.Target.execute(Target.java:449) at
org.apache.tools.ant.Target.performTasks(Target.java:470) at
org.apache.tools.ant.Project.executeSortedTargets(Project.java:1391)
at
org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:36)
at org.apache.tools.ant.Project.executeTargets(Project.java:1254) at
org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:437) ... 55 more
I would appreciate any kind of help to find out where the problem comes out. I am afraid that Java bindings are not so used nowadays and I couldn't find any user with similar problems.
My system is Fedora 32 64bits.

Gremlin Console can't initialize neo4j2 embedded database

I want to use the Gremlin console for some Gremlin queries on an embedded neo4j2 database. Gremlin via Rexster is not a problem.
When I try to load the graph I get the following error message:
org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.transaction.XaDataSourceManager#4405a711' was successfully initialized, but failed to start. Please see attached cause exception
with the following stack trace:
at com.tinkerpop.blueprints.impls.neo4j.Neo4jGraph.<init>(Neo4jGraph.java:166)
at com.tinkerpop.blueprints.impls.neo4j.Neo4jGraph.<init>(Neo4jGraph.java:136)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.codehaus.groovy.reflection.CachedConstructor.invoke(CachedConstructor.java:77)
at org.codehaus.groovy.runtime.callsite.ConstructorSite$ConstructorSiteNoUnwrapNoCoerce.callConstructor(ConstructorSite.java:102)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallConstructor(CallSiteArray.java:54)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:182)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:190)
at groovysh_evaluate.run(groovysh_evaluate:51)
at groovysh_evaluate$run.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:112)
at org.codehaus.groovy.tools.shell.Interpreter.evaluate(Interpreter.groovy:67)
at org.codehaus.groovy.tools.shell.Interpreter$evaluate.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
at org.codehaus.groovy.tools.shell.Groovysh.execute(Groovysh.groovy:152)
at org.codehaus.groovy.tools.shell.Shell.leftShift(Shell.groovy:114)
at org.codehaus.groovy.tools.shell.Shell$leftShift$0.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
at org.codehaus.groovy.tools.shell.ShellRunner.work(ShellRunner.groovy:88)
at org.codehaus.groovy.tools.shell.InteractiveShellRunner.super$2$work(InteractiveShellRunner.groovy)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1079)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:128)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:148)
at org.codehaus.groovy.tools.shell.InteractiveShellRunner.work(InteractiveShellRunner.groovy:100)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSiteNoUnwrapNoCoerce.invoke(PogoMetaMethodSite.java:272)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.callCurrent(PogoMetaMethodSite.java:52)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:46)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:133)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:137)
at org.codehaus.groovy.tools.shell.ShellRunner.run(ShellRunner.groovy:57)
at org.codehaus.groovy.tools.shell.InteractiveShellRunner.super$2$run(InteractiveShellRunner.groovy)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1079)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:128)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:148)
at org.codehaus.groovy.tools.shell.InteractiveShellRunner.run(InteractiveShellRunner.groovy:66)
at com.tinkerpop.gremlin.groovy.console.Console.<init>(Console.java:60)
at com.tinkerpop.gremlin.groovy.console.Console.main(Console.java:102)
Caused by: java.lang.RuntimeException: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.transaction.XaDataSourceManager#39ba25e4' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:287)
at org.neo4j.kernel.EmbeddedGraphDatabase.<init>(EmbeddedGraphDatabase.java:106)
at org.neo4j.kernel.EmbeddedGraphDatabase.<init>(EmbeddedGraphDatabase.java:81)
at org.neo4j.kernel.EmbeddedGraphDatabase.<init>(EmbeddedGraphDatabase.java:63)
at com.tinkerpop.blueprints.impls.neo4j.Neo4jGraph.<init>(Neo4jGraph.java:156)
... 61 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.transaction.XaDataSourceManager#39ba25e4' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:497)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:104)
at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:265)
... 65 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.nioneo.xa.NeoStoreXaDataSource#63cd462c' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:497)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:104)
at org.neo4j.kernel.impl.transaction.XaDataSourceManager.start(XaDataSourceManager.java:128)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:491)
... 67 more
Caused by: org.neo4j.kernel.impl.storemigration.UpgradeNotAllowedByConfigurationException: Failed to start Neo4j with an older data store version. To enable automatic upgrade, please set configuration parameter "allow_store_upgrade=true"
at org.neo4j.kernel.impl.storemigration.ConfigMapUpgradeConfiguration.checkConfigurationAllowsAutomaticUpgrade(ConfigMapUpgradeConfiguration.java:39)
at org.neo4j.kernel.impl.storemigration.StoreUpgrader.attemptUpgrade(StoreUpgrader.java:66)
at org.neo4j.kernel.impl.nioneo.store.StoreFactory.tryToUpgradeStores(StoreFactory.java:114)
at org.neo4j.kernel.impl.nioneo.store.StoreFactory.newNeoStore(StoreFactory.java:97)
at org.neo4j.kernel.impl.nioneo.xa.NeoStoreXaDataSource.start(NeoStoreXaDataSource.java:240)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:491)
... 70 more
Can someone help me get the Gremlin console working with a neo4j2 graph database?
Thanks in advance

As cybersam already mentioned the relevant part of the stacktrace is:
org.neo4j.kernel.impl.storemigration.UpgradeNotAllowedByConfigurationException: Failed to start Neo4j with an older data store version. To enable automatic upgrade, please set configuration parameter "allow_store_upgrade=true"
If you think your datastore is on same version as the libraries you're using doublecheck the classpath for duplicates. If you have two different versions it's generally non-deterministic which one is being used.

Error while analyzing code in eclipse(Android SDK) using Sonarqube

The error message is:-
Error during execution of Sonar
Error status [command: /usr/lib/jvm/java-7-oracle/jre/bin/java -cp /tmp/sonar-runner-impl4646048652546322996.jar org.sonar.runner.impl.BatchLauncherMain /tmp/sonar-project1330416023146003621.properties]: 1
SonarQube Console:-
Exception in thread "main" org.sonar.runner.impl.RunnerException: Unable to execute Sonar
at org.sonar.runner.impl.BatchLauncher$1.delegateExecution(BatchLauncher.java:91)
at org.sonar.runner.impl.BatchLauncher$1.run(BatchLauncher.java:75)
at java.security.AccessController.doPrivileged(Native Method)
at org.sonar.runner.impl.BatchLauncher.doExecute(BatchLauncher.java:69)
at org.sonar.runner.impl.BatchLauncher.execute(BatchLauncher.java:50)
at org.sonar.runner.impl.BatchLauncherMain.execute(BatchLauncherMain.java:41)
at org.sonar.runner.impl.BatchLauncherMain.main(BatchLauncherMain.java:59)
Caused by: org.sonar.api.utils.HttpDownloader$HttpException: Fail to download [http://localhost:9000/batch_bootstrap/db?project=retailer]. Response code: 500
at org.sonar.api.utils.HttpDownloader$BaseHttpDownloader$HttpInputSupplier.getInput(HttpDownloader.java:281)
at org.sonar.api.utils.HttpDownloader$BaseHttpDownloader$HttpInputSupplier.getInput(HttpDownloader.java:235)
at com.google.common.io.ByteStreams.copy(ByteStreams.java:116)
at com.google.common.io.Files.copy(Files.java:231)
at org.sonar.batch.bootstrap.ServerClient.download(ServerClient.java:69)
at org.sonar.batch.bootstrap.PreviewDatabase.downloadDatabase(PreviewDatabase.java:101)
at org.sonar.batch.bootstrap.PreviewDatabase.start(PreviewDatabase.java:69)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.picocontainer.lifecycle.ReflectionLifecycleStrategy.invokeMethod(ReflectionLifecycleStrategy.java:110)
at org.picocontainer.lifecycle.ReflectionLifecycleStrategy.start(ReflectionLifecycleStrategy.java:89)
at org.picocontainer.injectors.AbstractInjectionFactory$LifecycleAdapter.start(AbstractInjectionFactory.java:84)
at org.picocontainer.behaviors.AbstractBehavior.start(AbstractBehavior.java:169)
at org.picocontainer.behaviors.Stored$RealComponentLifecycle.start(Stored.java:132)
at org.picocontainer.behaviors.Stored.start(Stored.java:110)
at org.picocontainer.DefaultPicoContainer.potentiallyStartAdapter(DefaultPicoContainer.java:1015)
at org.picocontainer.DefaultPicoContainer.startAdapters(DefaultPicoContainer.java:1008)
at org.picocontainer.DefaultPicoContainer.start(DefaultPicoContainer.java:766)
at org.sonar.api.platform.ComponentContainer.startComponents(ComponentContainer.java:91)
at org.sonar.api.platform.ComponentContainer.execute(ComponentContainer.java:77)
at org.sonar.batch.bootstrapper.Batch.startBatch(Batch.java:92)
at org.sonar.batch.bootstrapper.Batch.execute(Batch.java:74)
at org.sonar.runner.batch.IsolatedLauncher.execute(IsolatedLauncher.java:45)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.sonar.runner.impl.BatchLauncher$1.delegateExecution(BatchLauncher.java:87)
... 6 more

Setting up Titan and Cassandra - Could not instantiate storage manager class

I've set up cassandra server (Datastax community edition) and it's running fine.
My cassandra.yaml has the following settings:
seeds: "127.0.0.1"
storage_port: 7000
rpc_port: 9160
When I do this in gremlin shell:
conf = new BaseConfiguration();
conf.setProperty("storage.backend","cassandra");
conf.setProperty("storage.hostname","127.0.0.1");
conf.setProperty("storage.port",9160);
and,
g= TitanFactory.open(conf);
I get this error:
java.lang.IllegalArgumentException: Could not instantiate storage manager class com.thinkaurelius.titan.diskstorage.cassandra.astyanax.AstyanaxStoreManager
at com.thinkaurelius.titan.diskstorage.Backend.getStorageManager(Backend.java:215)
at com.thinkaurelius.titan.diskstorage.Backend.<init>(Backend.java:97)
at com.thinkaurelius.titan.graphdb.configuration.GraphDatabaseConfiguration.getBackend(GraphDatabaseConfiguration.java:398)
at com.thinkaurelius.titan.graphdb.database.StandardTitanGraph.<init>(StandardTitanGraph.java:78)
at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:60)
at com.thinkaurelius.titan.core.TitanFactory$open.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116)
at groovysh_evaluate.run(groovysh_evaluate:46)
at groovysh_evaluate$run.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:42)
at groovysh_evaluate$run.call(Unknown Source)
at org.codehaus.groovy.tools.shell.Interpreter.evaluate(Interpreter.groovy:67)
at org.codehaus.groovy.tools.shell.Interpreter$evaluate.call(Unknown Source)
at org.codehaus.groovy.tools.shell.Groovysh.execute(Groovysh.groovy:152)
at org.codehaus.groovy.tools.shell.Shell.leftShift(Shell.groovy:114)
at org.codehaus.groovy.tools.shell.Shell$leftShift$0.call(Unknown Source)
at org.codehaus.groovy.tools.shell.ShellRunner.work(ShellRunner.groovy:88)
at org.codehaus.groovy.tools.shell.InteractiveShellRunner.super$2$work(InteractiveShellRunner.groovy)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1071)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:128)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:148)
at org.codehaus.groovy.tools.shell.InteractiveShellRunner.work(InteractiveShellRunner.groovy:100)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSiteNoUnwrapNoCoerce.invoke(PogoMetaMethodSite.java:272)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.callCurrent(PogoMetaMethodSite.java:52)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:137)
at org.codehaus.groovy.tools.shell.ShellRunner.run(ShellRunner.groovy:57)
at org.codehaus.groovy.tools.shell.InteractiveShellRunner.super$2$run(InteractiveShellRunner.groovy)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1071)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuperN(ScriptBytecodeAdapter.java:128)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodOnSuper0(ScriptBytecodeAdapter.java:148)
at org.codehaus.groovy.tools.shell.InteractiveShellRunner.run(InteractiveShellRunner.groovy:66)
at com.thinkaurelius.titan.tinkerpop.gremlin.Console.<init>(Console.java:60)
at com.thinkaurelius.titan.tinkerpop.gremlin.Console.<init>(Console.java:67)
at com.thinkaurelius.titan.tinkerpop.gremlin.Console.main(Console.java:72)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:532)
at com.thinkaurelius.titan.diskstorage.Backend.getStorageManager(Backend.java:204)
... 51 more
Caused by: com.thinkaurelius.titan.diskstorage.TemporaryStorageException: Temporary failure in storage backend
at com.thinkaurelius.titan.diskstorage.cassandra.astyanax.AstyanaxStoreManager.ensureKeyspaceExists(AstyanaxStoreManager.java:328)
at com.thinkaurelius.titan.diskstorage.cassandra.astyanax.AstyanaxStoreManager.<init>(AstyanaxStoreManager.java:136)
... 56 more
Caused by: com.netflix.astyanax.connectionpool.exceptions.NoAvailableHostsException: NoAvailableHostsException: [host=None(0.0.0.0):0, latency=0(0), attempts=0] No hosts to borrow from
at com.netflix.astyanax.connectionpool.impl.RoundRobinExecuteWithFailover.<init>(RoundRobinExecuteWithFailover.java:31)
at com.netflix.astyanax.connectionpool.impl.TokenAwareConnectionPoolImpl.newExecuteWithFailover(TokenAwareConnectionPoolImpl.java:74)
at com.netflix.astyanax.connectionpool.impl.AbstractHostPartitionConnectionPool.executeWithFailover(AbstractHostPartitionConnectionPool.java:229)
at com.netflix.astyanax.thrift.ThriftClusterImpl.executeSchemaChangeOperation(ThriftClusterImpl.java:131)
at com.netflix.astyanax.thrift.ThriftClusterImpl.addKeyspace(ThriftClusterImpl.java:252)
at com.thinkaurelius.titan.diskstorage.cassandra.astyanax.AstyanaxStoreManager.ensureKeyspaceExists(AstyanaxStoreManager.java:323)
... 57 more
What am I doing wrong?

I faced the same issue. solution is compatible version check. I downloaded the latest version of cassandra and the error is gone.
apache-cassandra-1.2.5
titan-all-0.3.1

How to scale image using Apache Ant? - issue using percentage

I wrote a simple task to scale my images, but it seems to have problem with PNG files.
Here's the contents of the task [the important part of it]:
<image srcdir="${imgResizeDir}" destdir="${imgResizeDir}/md" overwrite="yes" >
<scale width="75%" height="75%"/>
<regexpmapper from="^(.*)-hd\.(.*)$$" to="\1-md.\2"/>
</image>
When I run this I end up with this error:
Error: IOException occurs when search for propriate codecs.
Occurs in: com.sun.media.jai.codec.ImageCodec
java.io.IOException: Bad file descriptor
at java.io.RandomAccessFile.seek(Native Method)
at com.sun.media.jai.codec.FileSeekableStream.readPage(FileSeekableStream.java:141)
at com.sun.media.jai.codec.FileSeekableStream.read(FileSeekableStream.java:181)
at com.sun.media.jai.codec.SeekableStream.readFully(SeekableStream.java:327)
at com.sun.media.jai.codec.SeekableStream.readFully(SeekableStream.java:306)
at com.sun.media.jai.codec.ImageCodec.getDecoderNames(ImageCodec.java:274)
at com.sun.media.jai.opimage.StreamRIF.create(StreamRIF.java:80)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at javax.media.jai.FactoryCache.invoke(FactoryCache.java:130)
at javax.media.jai.OperationRegistry.invokeFactory(OperationRegistry.java:1679)
at javax.media.jai.ThreadSafeOperationRegistry.invokeFactory(ThreadSafeOperationRegistry.java:481)
at javax.media.jai.registry.RIFRegistry.create(RIFRegistry.java:340)
at javax.media.jai.RenderedOp.createInstance(RenderedOp.java:830)
at javax.media.jai.RenderedOp.createRendering(RenderedOp.java:878)
at javax.media.jai.RenderedOp.getRendering(RenderedOp.java:899)
at javax.media.jai.RenderedOp.createInstance(RenderedOp.java:810)
at javax.media.jai.RenderedOp.createRendering(RenderedOp.java:878)
at javax.media.jai.RenderedOp.getRendering(RenderedOp.java:899)
at javax.media.jai.RenderedOp.createInstance(RenderedOp.java:810)
at javax.media.jai.RenderedOp.createRendering(RenderedOp.java:878)
at javax.media.jai.RenderedOp.getRendering(RenderedOp.java:899)
at javax.media.jai.JAI.createNS(JAI.java:1103)
at javax.media.jai.JAI.create(JAI.java:977)
at javax.media.jai.JAI.create(JAI.java:1672)
at org.apache.tools.ant.taskdefs.optional.image.Image.processFile(Image.java:320)
at org.apache.tools.ant.taskdefs.optional.image.Image.processDir(Image.java:253)
at org.apache.tools.ant.taskdefs.optional.image.Image.execute(Image.java:374)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:390)
at org.apache.tools.ant.Target.performTasks(Target.java:411)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
at org.apache.tools.ant.Project.executeTarget(Project.java:1368)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
at org.apache.tools.ant.Main.runBuild(Main.java:809)
at org.apache.tools.ant.Main.startAnt(Main.java:217)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.intellij.rt.ant.execution.AntMain2.main(AntMain2.java:29)
java.lang.RuntimeException: - Unable to render RenderedOp for this operation.
at org.apache.tools.ant.taskdefs.optional.image.Image.processFile(Image.java:343)
at org.apache.tools.ant.taskdefs.optional.image.Image.processDir(Image.java:253)
at org.apache.tools.ant.taskdefs.optional.image.Image.execute(Image.java:374)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:390)
at org.apache.tools.ant.Target.performTasks(Target.java:411)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
at org.apache.tools.ant.Project.executeTarget(Project.java:1368)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
at org.apache.tools.ant.Main.runBuild(Main.java:809)
at org.apache.tools.ant.Main.startAnt(Main.java:217)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.intellij.rt.ant.execution.AntMain2.main(AntMain2.java:29)
Caused by: java.lang.RuntimeException: - Unable to render RenderedOp for this operation.
at javax.media.jai.RenderedOp.createInstance(RenderedOp.java:838)
at javax.media.jai.RenderedOp.createRendering(RenderedOp.java:878)
at javax.media.jai.RenderedOp.getRendering(RenderedOp.java:899)
at javax.media.jai.RenderedOp.createInstance(RenderedOp.java:810)
at javax.media.jai.RenderedOp.createRendering(RenderedOp.java:878)
at javax.media.jai.RenderedOp.getRendering(RenderedOp.java:899)
at javax.media.jai.RenderedOp.createInstance(RenderedOp.java:810)
at javax.media.jai.RenderedOp.createRendering(RenderedOp.java:878)
at javax.media.jai.RenderedOp.getRendering(RenderedOp.java:899)
at javax.media.jai.JAI.createNS(JAI.java:1103)
at javax.media.jai.JAI.create(JAI.java:977)
at javax.media.jai.JAI.create(JAI.java:1672)
at org.apache.tools.ant.taskdefs.optional.image.Image.processFile(Image.java:320)
... 24 more
If I remove the % sign from width and height I end up with images with proper dimensions, but PNGs are screwed [they look like covered with semitransparent black layer].
Most of the images are PNG and I have to use %.
I'm running this task using Apache Ant 1.8.2 on MacOS Lion.
Java version: 1.6.0_31
Is there something I should add to my ant to make this work?
Thanks