gnu: openjdk9: Fix time bomb in ‘GenerateCurrencyData.java’.

Fixes <https://issues.guix.gnu.org/68333>, as well.
This is a companion to commit 5c0f77f4241c9beac0c82deae946bfdc70b49ff0.

* gnu/packages/java.scm (openjdk9)[source]: Add patch.
* gnu/packages/patches/openjdk-currency-time-bomb.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.

Change-Id: I45ca1fe5bad922307eba64d46a330a8f233c0f55

1 files changed, 13 insertions, 0 deletions

diff --git a/gnu/packages/patches/openjdk-currency-time-bomb.patch b/gnu/packages/patches/openjdk-currency-time-bomb.patch
new file mode 100644
index 0000000000..7738eb1595
--- /dev/null
+++ b/gnu/packages/patches/openjdk-currency-time-bomb.patch
@@ -0,0 +1,13 @@
+Fix a time bomb present in the OpenJDK tools.
+
+--- a/jdk/make/src/classes/build/tools/generatecurrencydata/GenerateCurrencyData.java
++++ b/jdk/make/src/classes/build/tools/generatecurrencydata/GenerateCurrencyData.java
+@@ -285,7 +285,7 @@ public class GenerateCurrencyData {
+             String timeString = currencyInfo.substring(4, length - 4);
+             long time = format.parse(timeString).getTime();
+             if (Math.abs(time - System.currentTimeMillis()) > ((long) 10) * 365 * 24 * 60 * 60 * 1000) {
+-                throw new RuntimeException("time is more than 10 years from present: " + time);
++                System.err.println("note: time is more than 10 years from \"present\": " + time);
+             }
+             specialCaseCutOverTimes[specialCaseCount] = time;
+             specialCaseOldCurrencies[specialCaseCount] = oldCurrency;