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Customise the error message according to why Corda cannot boot. (#610)

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* Customise the error message according to why Corda cannot boot.
* Reset system property programmatically for the sake of developers.
This commit is contained in:
Chris Rankin 2017-04-28 16:01:19 +01:00 committed by GitHub
parent f2d138cdab
commit 3208daf507
2 changed files with 9 additions and 9 deletions
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15
node/src/main/kotlin/net/corda/node/Corda.kt
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@ -169,27 +169,28 @@ private fun assertCanNormalizeEmptyPath() {
try {
Paths.get("").normalize()
} catch (e: ArrayIndexOutOfBoundsException) {
javaIsTooOld()
failStartUp("You are using a version of Java that is not supported (${System.getProperty("java.version")}). Please upgrade to the latest version.")
}
}
private fun javaIsTooOld(): Nothing {
println("""
You are using a version of Java that is not supported (${System.getProperty("java.version")}). Please upgrade to the latest version.
Corda will now exit...""")
private fun failStartUp(message: String): Nothing {
println(message)
println("Corda will now exit...")
exitProcess(1)
}
private fun disableJavaDeserialization() {
// ObjectInputFilter and friends are in java.io in Java 9 but sun.misc in backports, so we are using the system property interface for portability.
// This property has been set in the Capsule. Anywhere else may be too late.
// This property has already been set in the Capsule. Anywhere else may be too late, but we'll repeat it here for developers.
System.setProperty("jdk.serialFilter", "maxbytes=0")
// Attempt at deserialization so that ObjectInputFilter (permanently) inits itself:
val data = ByteArrayOutputStream().apply { ObjectOutputStream(this).use { it.writeObject(object : Serializable {}) } }.toByteArray()
try {
withLevel("java.io.serialization", "WARN") {
ObjectInputStream(data.inputStream()).use { it.readObject() } // Logs REJECTED at INFO, which we don't want users to see.
}
javaIsTooOld()
// JDK 8u121 is the earliest JDK8 JVM that supports this functionality.
failStartUp("Corda forbids Java deserialisation. Please upgrade to at least JDK 8u121 and set system property 'jdk.serialFilter' to 'maxbytes=0' when booting Corda.")
} catch (e: InvalidClassException) {
// Good, our system property is honoured.
}

3
node/src/main/kotlin/net/corda/node/driver/Driver.kt
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@ -575,8 +575,7 @@ class DriverDSL(
val systemProperties = overriddenSystemProperties + mapOf(
"name" to nodeConf.myLegalName,
"visualvm.display.name" to "corda-${nodeConf.myLegalName}",
"jdk.serialFilter" to "maxbytes=0" // disable deserialisation
"visualvm.display.name" to "corda-${nodeConf.myLegalName}"
)
val extraJvmArguments = systemProperties.map { "-D${it.key}=${it.value}" } +
"-javaagent:$quasarJarPath"