Remove dependencies on deprecated Gradle feature

.gitattributes

@@ -0,0 +1,2 @@
+gradlew linguist-generated=true
+gradlew.bat linguist-generated=true

eclipsePlugin-junit/build.gradle

@@ -1,11 +1,33 @@
 apply from: "$rootDir/gradle/checkstyle.gradle"
 apply from: "$rootDir/gradle/jacoco.gradle"
 
+def localProps = new Properties()
+localProps.load(new FileInputStream("$rootDir/eclipsePlugin/local.properties"))
+
+def eclipseRootDir = file(localProps.getProperty('eclipseRoot.dir'))
+// Eclipse 4.5+ uses a different directory layout under macOS. Try to detect this first.
+def eclipseExecutable = new File(eclipseRootDir, "Contents/MacOS/eclipse")
+def eclipsePluginsDir = new File(eclipseRootDir, "Contents/Eclipse/plugins")
+if (!eclipseExecutable.exists()) {
+  // Fall back to non-macOS directory layout.
+  eclipsePluginsDir = new File(eclipseRootDir, "plugins")
+}
+
 dependencies {
   implementation project(':eclipsePlugin')
-  testImplementation project(path: ':eclipsePlugin', configuration: 'compileOnly')
   testImplementation 'junit:junit:4.13'
   testImplementation 'org.mockito:mockito-core:3.5.10'
+
+  // List below includes all Eclipse SDK plugins except few causing troubles.
+  // TODO: it should include what is required in the MANIFEST.MF, and nothing else
+  testImplementation fileTree(dir:eclipsePluginsDir, include:'**/*.jar',
+          exclude:[
+                  '**/datanucleus-enhancer*.jar',
+                  'edu.umd.cs.findbugs.**/*.jar',
+                  'org.mockito*.jar',
+                  'com.github.spotbugs.**/*.jar',
+                  '**/*source_*.jar'
+          ])
 }
 
 jacocoTestReport {

eclipsePlugin-test/build.gradle

@@ -1,5 +1,17 @@
 apply from: "$rootDir/gradle/checkstyle.gradle"
 
+def localProps = new Properties()
+localProps.load(new FileInputStream("$rootDir/eclipsePlugin/local.properties"))
+
+def eclipseRootDir = file(localProps.getProperty('eclipseRoot.dir'))
+// Eclipse 4.5+ uses a different directory layout under macOS. Try to detect this first.
+def eclipseExecutable = new File(eclipseRootDir, "Contents/MacOS/eclipse")
+def eclipsePluginsDir = new File(eclipseRootDir, "Contents/Eclipse/plugins")
+if (!eclipseExecutable.exists()) {
+  // Fall back to non-macOS directory layout.
+  eclipsePluginsDir = new File(eclipseRootDir, "plugins")
+}
+
 sourceSets {
   main {
     java {
@@ -17,7 +29,16 @@ dependencies {
   implementation(project(':eclipsePlugin')) {
     transitive = true
   }
-  implementation project(path: ':eclipsePlugin', configuration: 'compileOnly')
+  // List below includes all Eclipse SDK plugins except few causing troubles.
+  // TODO: it should include what is required in the MANIFEST.MF, and nothing else
+  compileOnly fileTree(dir:eclipsePluginsDir, include:'**/*.jar',
+          exclude:[
+                  '**/datanucleus-enhancer*.jar',
+                  'edu.umd.cs.findbugs.**/*.jar',
+                  'org.mockito*.jar',
+                  'com.github.spotbugs.**/*.jar',
+                  '**/*source_*.jar'
+          ])
 
   implementation project(':test-harness')
   implementation 'org.hamcrest:hamcrest-all:1.3'

eclipsePlugin/build.gradle

@@ -46,7 +46,7 @@ def eclipsePluginId = 'com.github.spotbugs.plugin.eclipse'
 def localProps = new Properties()
 localProps.load(new FileInputStream("$projectDir/local.properties"))
 
-def eclipseRootDir = new File(localProps.getProperty('eclipseRoot.dir'))
+def eclipseRootDir = file(localProps.getProperty('eclipseRoot.dir'))
 // Eclipse 4.5+ uses a different directory layout under macOS. Try to detect this first.
 def eclipseExecutable = new File(eclipseRootDir, "Contents/MacOS/eclipse")
 def eclipsePluginsDir = new File(eclipseRootDir, "Contents/Eclipse/plugins")

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.6.1-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists