In order to improve performance of certain VM functionality
Ethereum introduce plug-in mechanism called pre-compiled
contracts.
Supported functionality:
ecRecover - (addr: 01) - recover address out of hash, v, r, s - parameters.
sha256 - (addr: 02) - calculate hash value with sha256 algorithm
ripempd160 - (addr:03) - calculate hash value with repimpd algorithm
This is in order to accommodate GitHubStateTest#stSystemOperationsTest,
which tests Ethereum's rules around maximum call stack depth, and thus
requires increasing Java's own defaults.
If this option is not set, this test results in a
StackOverflowException. Note that the setting is applied to Gradle's
`test` closure as opposed to a the global `JAVA_OPTS` environment
variable, because Gradle spawns a new process for executing tests.
There is a known issue with Gradle's new `maven-publish` plugin that
causes all dependencies in the published pom to runtime-scoped [1]. This
causes conflicts with our use of Spring's `propdeps` Gradle plugin that
introduces optional and provided scopes.
This commit drops down to using Gradle's older, orginal `maven` plugin,
and JFrog's old-style `artifactory-publish` plugin in order to preserve
propdeps support.
This means removing JFrog's `bintray` plugin, as it appears to depend on
the `maven-publish` plugin. For the moment, ethereumj only really needs
to publish snapshots, and this is still supported. This is a stopgap
measure; it will be necessary to deal with getting uploads to
Bintray/JCenter working again once we're ready for a non-snapshot
release, but this can be dealt with later.
[1]: http://forums.gradle.org/gradle/topics/maven_publish_plugin_generated_pom_making_dependency_scope_runtime
- Organize imports using shared IDEA configuration
- Format sources, including:
- Normalize 4-space indentation
- Wrap at 120 char right margin
- Remove spaces around method arguments
Use Spring's `propdeps` plugin to introduce optional/provided scopes for
gradle dependencies. Mark libraries such as slf4j-log4j12 as optional.
These libraries are required to run a local ethereumj node, but they are
not required in order to compile against ethereumj in a downstream
appliaction. These libraries easily can cause conflicts, for example if
another slf4j-* library (such as slf4j-logback) is on the classpath.
Prior to this commit, jacoco coverage report XML files were not actually
being written to disk, meaning that the Gradle coveralls plugin had
nothing to publish to https://coveralls.io/r/ethereum/ethereumj. HTML
reports are now being written as well, for convenient local browsing.
The Travis CI build now publishes ethereumj-core artifacts (classes,
sources and javadoc jars) on every push to master. See updated
ethereumj-core/README.md for details. Note that the `gradle release`
task has been renamed to `gradle publish`.
