I have created a custom jar file and tried to access the function in the java file from Flow in corda 3.3 version. I have added the jar file using Project Structure>Project Settings>Libraries>Java>. While running the code its not identifying the class path of added jar file and throwing java.lang.NoClassDefFoundError
Modified the build.gradle file and added flatDir {
dirs 'libs'
} where the jar file is residing
Related
I created one jar file and in that i have class files, .classpath file, .project file In sample on github, i see apiproxy, callout and lib folder. when i deploy it, i getting error that traffic can't flow , i get error like traffic.How to upload dependencies jar in lib folder However when i upload my main jar file in resources folder, i don't see any lib folder for dependencies jars. Should i place all jars in one resources folder. in my .classpath file, i can see all lib jars like message-flow-1.0.0.jar, expressions-1.0.0.jar and itextpdf-5.5.6.jar. However in documentation, its given to deploy by maven but i don't know maven, from UI how should i create lib folder and upload jars there.
Okay, in my understanding of your point.
You can upload jar file into apigee from Scripts > import file > in file type choose "JAR" > select jar file from your work space > and finally, define your jar name and then use policy Java Callout to call your jar.
If you have to modified your jar and want to deploy it, delete your existing jar in apigee and upload the new jar by following 1. In case of new jar has the same name of existing jar, you do not need to do anything with Java Callout policy. But the new jar has the different name, don't forget to modified Java Callout for refer to your new jar.
Please create the single jar file which contains jars like message-flow-1.0.0.jar, expressions-1.0.0.jar and itextpdf-5.5.6.jar. As per the apigee doc in create a Java Callout policy and make sure you have mentioned the package name & class name in Java Callout Poliy
<ClassName>package.ClassName</ClassName
<ResourceURL>java://SingleJar.jar</ResourceURL>
I have a .jar file, compiled with the help of the sbt assembly. The program that the sbt builds, inside has a reference to a file with a direct path indication - src/bla/bla.txt. When I run a jar file not from the project's directory, the program can not find the file bla.txt on the specified path. How to correctly specify the path to the file so that the program can have access
What you probably want to do is to put the bla.txt to
src/main/resources/ -folder
and then you can read it using Source.
import scala.io.Source
scala 2.12
val blaLines = Source.fromResource("bla.txt").getLines
scala 2.11
val blaLines = Source.fromInputStream( getClass.getResourceAsStream("/bla.txt") ).getLines
I have one JAR named as abc.jar with 15 class files. In JAR file I need to modify xyz.class, so I decompiled to xyz.java and modified it.
How can I update that JAR with the modified Java file? While trying to create (compile) the JAR file I am getting errors.
You can add your newly compiled class to the jar and overwrite the old one, here is how to add xyz.class and xyz.java to the jar :
jar uf abc.jar xyz.class xyz.java
See here for more about updating a jar file.
Or simply you can use any archiving tool, like winrar to open and add files to the jar.
Compile the xyz.java and replace the xyz.class file directly in jar without building the jar again, if the single class has been modified.
I am trying to create a fat jar file in a multi-project Gradle build, something like the following:
root
+-- project1
+-- project2
project1 provides the basic functionality, which is then used by project2 to create an executable jar. The executable JAR needs to contain all of the code from the dependencies so that it can be run standalone.
For external dependencies this works fine. In project2 I create a new configuration:
apply plugin: 'maven'
apply plugin: 'java'
configurations {
// configuration for JARs that need to be included in the final packaging
includeInJar
}
and then add the dependencies:
dependencies {
includeInJar 'com.fasterxml.jackson.core:jackson-databind:2.2.3'
...
configurations.compile.extendsFrom(configurations.includeInJar)
}
The packaging then looks like this:
jar {
manifest {
attributes "Main-Class": "com.acme.project1.MyTest"
}
// import all dependencies into the Jar so that it can be run easily
from {
configurations.includeInJar.collect {
it.isDirectory() ? it : zipTree(it)
}
}
}
The jar is correctly built with all of the files from the external dependencies. The problem comes with the project dependency to project1:
includeInJar project(':project1')
When this is present, I get an error when it tries to assemble the JAR that it can't find the jar (e.g. project1-0.4.0.jar) in the project1 build/libs directory as it does not exist. The message is correct, as project1 builds a SNAPSHOT jar (e.g. project1-0.4.0-SNAPSHOT.jar).
The question is, why does the configuration refer to the non-SNAPSHOT jar when the project is building SNAPSHOT jars? What can I change so that it finds the correct jar?
As a comment :
In my opinion, fatjar is not a great pattern. Maybe Gradle application plugin would fit your need ?
I found the answer to my own question.
The problem was that we have some additional scripting at the project level which is apparantly making a change to the version at the end of the configuration phase.
When the fat jar configuration is assembled, the 'plain' version is used. This is then changed to the -SNAPSHOT version before the jars are built.
Moving the from { ... } code into the build phase by wrapping it in doFirst { ... } is enough to fix the problem, although the real fix is obviously to avoid changing the version in the middle of the in the first place.
I have a jar file (Gestp.jar) . And I have some .Java files (which are web applications) within the jar file
I need to modify a particular .Java file . And then re-create the Jar file and deploy it in a server.
I have extracted the jar file , and did the modification to the .Java file. But unable to create the .class file with the changes , in eclipse as it is a web application.
Please help.
Thanks in advance,
Aditya.T