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new 35abad9 Fix IDE warnings. Get build working with Java 8 through 14
35abad9 is described below
commit 35abad971594d467fbe3b85ae8c61575d2bd2eb6
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Thu Nov 14 19:26:00 2019 +0000
Fix IDE warnings. Get build working with Java 8 through 14
"-XDignore.symbol.file" is a hack but it is the only solution I found
that worked cleanly with all Java versions.
---
build.xml | 7 +------
.../apache/catalina/mbeans/JmxRemoteLifecycleListener.java | 12 +++++++++++-
res/findbugs/filter-false-positives.xml | 6 ++++++
3 files changed, 18 insertions(+), 7 deletions(-)
diff --git a/build.xml b/build.xml
index 0499113..014e848 100644
--- a/build.xml
+++ b/build.xml
@@ -93,7 +93,6 @@
<!-- Servlet 4.0 spec requires Java 8+ -->
<property name="compile.source" value="8"/>
<property name="compile.target" value="8"/>
- <property name="compile.release" value="8"/>
<property name="min.java.version" value="8"/>
<!-- Locations to create the JAR artifacts -->
@@ -641,7 +640,6 @@
deprecation="${compile.deprecation}"
source="${compile.source}"
target="${compile.target}"
- release="${compile.release}"
encoding="ISO-8859-1"
includeAntRuntime="true" >
<!-- Uncomment this to show unchecked warnings:
@@ -696,12 +694,12 @@
deprecation="${compile.deprecation}"
source="${compile.source}"
target="${compile.target}"
- release="${compile.release}"
encoding="ISO-8859-1"
includeAntRuntime="true" >
<!-- Uncomment this to show unchecked warnings:
<compilerarg value="-Xlint:unchecked"/>
-->
+ <compilerarg value="-XDignore.symbol.file"/>
<classpath refid="compile.classpath" />
</javac>
<!-- Copy static resource files -->
@@ -1216,7 +1214,6 @@
debug="${compile.debug}" deprecation="${compile.deprecation}"
source="${compile.source}"
target="${compile.target}"
- release="${compile.release}"
classpath="${tomcat.classes}"
encoding="ISO-8859-1"
includeantruntime="false">
@@ -1228,7 +1225,6 @@
debug="${compile.debug}" deprecation="${compile.deprecation}"
source="${compile.source}"
target="${compile.target}"
- release="${compile.release}"
classpath="${tomcat.classes}"
encoding="ISO-8859-1"
includeantruntime="false">
@@ -1465,7 +1461,6 @@
deprecation="${compile.deprecation}"
source="${compile.source}"
target="${compile.target}"
- release="${compile.release}"
encoding="ISO-8859-1"
includeantruntime="true">
<classpath refid="tomcat.test.classpath" />
diff --git a/java/org/apache/catalina/mbeans/JmxRemoteLifecycleListener.java
b/java/org/apache/catalina/mbeans/JmxRemoteLifecycleListener.java
index 77a785d..d01ed8e 100644
--- a/java/org/apache/catalina/mbeans/JmxRemoteLifecycleListener.java
+++ b/java/org/apache/catalina/mbeans/JmxRemoteLifecycleListener.java
@@ -441,7 +441,13 @@ public class JmxRemoteLifecycleListener extends
SSLHostConfig implements Lifecyc
Remote jmxServer = server.toStub();
// Create the RMI registry
try {
- new JmxRegistry(theRmiRegistryPort, registryCsf, registrySsf,
"jmxrmi", jmxServer);
+ /*
+ * JmxRegistry is registered as a side-effect of creation.
+ * This object is here so we can tell the IDE it is OK for it
+ * not to be used.
+ */
+ @SuppressWarnings("unused")
+ JmxRegistry unused = new JmxRegistry(theRmiRegistryPort,
registryCsf, registrySsf, "jmxrmi", jmxServer);
} catch (RemoteException e) {
log.error(sm.getString(
"jmxRemoteLifecycleListener.createRegistryFailed",
@@ -589,6 +595,10 @@ public class JmxRemoteLifecycleListener extends
SSLHostConfig implements Lifecyc
}
+ /*
+ * Better to use the internal API than re-invent the wheel.
+ */
+ @SuppressWarnings("restriction")
private static class JmxRegistry extends sun.rmi.registry.RegistryImpl {
private static final long serialVersionUID = -3772054804656428217L;
private final String jmxName;
diff --git a/res/findbugs/filter-false-positives.xml
b/res/findbugs/filter-false-positives.xml
index 7fcc6bd..2c8d18b 100644
--- a/res/findbugs/filter-false-positives.xml
+++ b/res/findbugs/filter-false-positives.xml
@@ -344,6 +344,12 @@
<Bug pattern="VO_VOLATILE_REFERENCE_TO_ARRAY" />
</Match>
<Match>
+ <!-- Object is used via side-effect of creation. -->
+ <Class name="org.apache.catalina.mbeans.JmxRemoteLifecycleListener" />
+ <Method name="createServer" />
+ <Bug pattern="DLS_DEAD_LOCAL_STORE" />
+ </Match>
+ <Match>
<!-- SQL construction is safe since it is from trusted config -->
<Or>
<Class name="org.apache.catalina.realm.DataSourceRealm" />
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