From 483f043d3cc4e74e4ec577587628d0e83459ef40 Mon Sep 17 00:00:00 2001
From: zzz <zzz@mail.i2p>
Date: Sat, 25 Aug 2018 18:22:55 +0000
Subject: [PATCH] Bettor error message on covariant fail
---
.../java/src/net/i2p/router/web/SummaryListener.java | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/apps/routerconsole/java/src/net/i2p/router/web/SummaryListener.java b/apps/routerconsole/java/src/net/i2p/router/web/SummaryListener.java
index 26d5d18deb..8e8619a498 100644
--- a/apps/routerconsole/java/src/net/i2p/router/web/SummaryListener.java
+++ b/apps/routerconsole/java/src/net/i2p/router/web/SummaryListener.java
@@ -176,6 +176,17 @@ public class SummaryListener implements RateSummaryListener {
rrdFile.delete();
} catch (IOException ioe) {
_log.error("Error starting RRD for stat " + baseName, ioe);
+ } catch (NoSuchMethodError nsme) {
+ // Covariant fail Java 8/9/10
+ // java.lang.NoSuchMethodError: java.nio.MappedByteBuffer.position(I)Ljava/nio/MappedByteBuffer;
+ // see e.g. https://jira.mongodb.org/browse/JAVA-2559
+ _log.error("Error starting RRD for stat " + baseName, nsme);
+ String s = "Error:" +
+ "\nCompiler JDK mismatch with JRE version " + System.getProperty("java.version") +
+ " and no bootclasspath specified when building." +
+ "\nContact packager.";
+ _log.log(Log.CRIT, s);
+ System.out.println(s);
} catch (Throwable t) {
_log.error("Error starting RRD for stat " + baseName, t);
}
--
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